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Roofing Expert Witnesses

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Dr. Stephen C. Wexler, PE, CPE CCS CPE CPMP CVS CBO CMC CSP
Chairman
4132 Del Rey Ave.
Marina Del Rey CA, TX 90292
USA
phone: 310-306-3877
fax: 310-306-7480
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Stephen Wexler Construction Management ExpertExperience: 40 years experience in construction, construction management, safety and related. Unusual combination of safety engineering and construction and civil engineering permits separate areas within construction, safety, and premises liability. 6 years Instructor at UCLA Evening Extension in Engineering & Construction Management, and 4 years US Navy Seabees Instructor for Construction Management - Port Hueneme, CA and Gulfport, Mississippi.

Licenses: Dr. Stephen C. Wexler, PE holds Licenses in Civil Engineering, Safety Engineering and is a "B" License General Contractor.

Services: 50% of business in Construction Management in working with Owners, Contractors & Subcontractors in their Building Programs and 50% of business activity in Forensic Engineering in working with Attorneys in a variety of case types.

Qualified Expert Witness: Testimony over 16 years in + / - 200 trials and + / - 500 expert depositions. Backed by a research staff of engineers. Both plaintiff & defense. High integrity & solid record - No skeletons or conflicting testimony. Litigation savvy with attractive record of Jury appeal.

Other Expertise: Members of Wexco International have additional expertise in: Quality Control; Building and Design Codes; Earthquake / Fire / Flood Damage; Roofing; Waterproofing; Paints; Plaster; Flooring; Critical Path Method Scheduling; Delay Impact Analysis; Accidents relating to Scaffolds, Ladders, Forklifts, Guardrails, Cranes, Manlifts, Use of Tools, Electrocutions, Bulldozers, Stacking; Parking Lots, ADA Regulations; Electric Gates; Construction Area Traffic Control; Roadway Maintenance; Visibility; Lighting.
The subject Case involved the Defendant traveling Southbound on a Freeway in Southern California, when the California Highway Patrol (CHP) performed a traffic stop. The CHP Officer indicated (at the time of the stop, as well as in the official Report) that the cause of the stop was excessive speed (speeding). During the traffic stop, the driver was cited for driving without a valid Driver License.

7/24/2014 · Construction
An employee of a Metal Framing / Drywall Subcontractor fell off a scaffold that allegedly was improperly situated for the work. Additionally, Plaintiff contended that the scaffold had no guardrail (at the time of the incident). The incident occurred during construction of a large mixed use building in Northern California. The result of the fall was a catastrophic injury to the Plaintiff.

6/17/2014 · Construction
The subject property is located in the City of Los Angeles, and is considered to be a landmark property. The improvements on the property were originally constructed in early 1910's. The property consists of: a Main House with a gross living area of 9,400 square feet; a Garage with a 900 square foot Guest House above; and, a 740 square foot Pool House. The three (3) buildings, swimming pool, reflection pond, fountain and gardens are situated on a 36,000 square foot lot.

According to data released by the Texas Department of State Health Services, which utilized the 2007 Hospital EMS/Trauma Registry Data, Falls and Auto Accidents were the top 2 leading causes of injury within the State of Texas. Of the 91,703 injuries reported in 2007, the combination of Falls and Auto Accidents accounted for an amazing 64% (58,833 injuries). Individually, Falls made up 38% (34,418) of all statewide injuries reported.

According to data released by the Texas Department of State Health Services, which utilized the 2007 Hospital EMS/Trauma Registry Data, Falls and Auto Accidents were the top 2 leading causes of injury within the State of Texas. Of the 91,703 injuries reported in 2007, the combination of Falls and Auto Accidents accounted for an amazing 64% (58,833 injuries). Individually, Auto Accidents accounted for 27% (27,415) of all statewide injuries reported. Additionally, motor vehicle accidents in Texas is the leading cause of death for residents under the age of 45, and 3rd leading cause of death to all residents.

3/7/2014 · Construction
Plaintiff was an Apprentice Plumber working at the Construction Renovation of a Coffee House.

2/4/2014 · Construction
The subject of this Case involves two (2) adjoining hillside properties in Pacific Palisades, California. One property (owned by Defendant) is at a higher elevation than the other (owned by Plaintiff). Both properties were developed and graded at the same time (in the 1960's). A sloped hillside is situated between each of the respective property building pads and yardscapes.

1/3/2014 · Construction
Plaintiff was a 5 year old child that fell through a gap between the horizontal railings of at a guardrail at an outdoor observation platform located on a small hill overlooking a lake.

11/27/2013 · Construction
The Project was a remodel of an existing multi-story residence located on a hillside in Beverly Hills, California. The Plaintiffs are the owners of the residence, the Defendant are the Design-Build General Contractors engaged by Plaintiffs to perform various design and remodelling to the hillside property. The Home Improvement Agreement and its amendments (i.e. 2 change orders) were drafted by Defendants.

10/24/2013 · Construction
The Project was a retrofit of a historic theatre that was converted to a Restaurant / Bar / Lounge. The Plaintiffs are the managers and operators of a nightclub in Hollywood, the Defendant are the General Contractors engaged by Plaintiffs to perform renovations. The contract and its attachments were created by Defendants.

10/3/2013 · Construction
The Plaintiff, an Insurance Adjuster, was performing an inspection of the roof of an automobile dealership that had reported damage as a result of wind and rain from a recent Hurricane. The subject roof consisted of corrugated metal panels, and translucent fiberglass panels with a matching corrugated pattern. Additionally, the subject roof had been covered with a white polymer "paint" coating for purposes of energy reduction.

The Plaintiff (Decedent) was using a home , propane powered barbecue grill, when the attached propane tank allegedly suffered a catastrophic material failure, resulting in an explosion, which then caused a fire of the residence. Plaintiff obtained the subject propane tank from the Defendant Retailer, who had provided the tank as an exchange of the Plaintiff's empty tank. Defendant Retailer was not authorized by the Defendant Propane Supplier.

Plaintiff was traveling Northbound in the #1 lane of Frank Sinatra Drive in the Plaintiff's 1997 Jeep Grand Cherokee. At the time of the incident, the Plaintiff was attempting to execute a right hand turn into the main entry at The Bellagio, with the intention of traveling to the employee pick up area, to pick up a co-worker.

7/26/2013 · Expert Witnessing
The Plaintiff, a tenant of the subject apartment building, was on the roof of the building, when the Plaintiff fell through a rooftop skylight located above the apartment building hallway. The Plaintiff had been on the roof with a friend, but was alone at the time of the incident.

At the time of the fall, the Plaintiff was apparently beginning to descend from the top (3rd) level of the scaffold. While transitioning from the top platform onto the ladder that was built into the scaffold frame, the Plaintiff attempted to utilize the midrail as a hand hold, when the midraild gave way. Plaintiff lost his balance and fell to the ground level below.

Plaintiff was the front passenger in a vehicle traveling Northbound on a 2-lane roadway. While traveling through an "S" turn, the vehicle lost control and entered into a critical speed skid.

5/29/2013 · Construction
Plaintiff was a Laborer/Grade Checker who was working at a project involving grading and applying a new asphalt surface to a parking lot. The Defendant was a Contractor that was grading the parking lot utilizing a skip loader.

4/23/2013 · Construction
Plaintiff was an HVAC Technician, who was performing heating, ventilation and air-conditioning work at commercial shopping plaza. The shopping plaza buildings were single-story in height, and had exterior fixed ladders for access to the roof.

3/20/2013 · Expert Witnessing
Experts are a very important, and often critical, component of a lawsuit. Aside from all of the traditional elements and facets (Forensic Analysis & Testimony), is the litany of activities that the Expert may play in the initial role of Consultant to the Attorney.

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William J. Pyznar, Andrew A. Amorosi & Anthony Volpe
Principals
682 Highway 202/206
Bridgewater NJ 08807
USA
phone: 908-595-0050
fax: 908-595-0012
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The Falcon Group consists of Forensic Architects and Forensic Engineers who consult on construction claims. We provide claims consulting for: Construction Defects, Architectural Standard of Care, Delay, Errors and Omissions (E&O), Building Codes, Specifications and costs.

The Falcon group has Professional Engineers, Registered Architects, Roofing Experts, Stucco Experts, EIFS Experts, and Building Envelope Experts. We perform dispute resolution and prepare expert reports for a wide range of construction issues with a current claim total of over $50,000,000.

Litigation sometimes becomes necessary to resolve construction, engineering, architectural or materials-related disputes. For virtually any type of property or project, we provide a variety of analytic and related services to assist clients in obtaining successful litigation outcomes, related to:
  • Developer Transition
  • Expert Witness/Professional Testimony
  • Material Defect Claims
  • Construction Defect Reports and Claims
  • Construction Litigation Support and Documentation
  • Education
  • Municipalities
  • Banks
  • Commercial Property Managers
  • Insurance Companies
  • Attorneys
  • Private Property Owners
  • Professional Services Provided Include:
    • Design Plans and Specifications
    • Forensic Engineering
    • Litigation Support
    • Construction
    • Administration and Inspection
    • Specialty Services for Community Associations
  • Land Surveying
  • Civil Engineering
  • Architectural Engineering
  • Construction and Material Testing
  • Architectural Services
  • Property Condition Assessment (PCA) Reports
  • Litigation Support - Litigation sometimes becomes necessary to resolve construction, engineering, architectural or materials-related disputes. For virtually any type of property or project, we provide a variety of analytic and related services to assist clients in obtaining successful litigation outcomes, related to:
    • Developer Transition
    • Construction Defect Reports and Claims
    • Material Defect Claims
    • Expert Witness/Professional Testimony
    • Construction Litigation Support and Documentation
    View Falcon Group's Consulting Profile.
    11/4/2015 · Construction
    As discussed in my first window article titled "The View Of Your Windows Is Not Always The Same", there is great variation in the suitability of a window for a particular application. In all cases, there is a very specific need for proper detailing and attention to detail with respect to integration of the window with the building envelope and proper detailing during installation. This sequel to my first window article focuses on quality control measures for installation once your window has been selected and specified.

    10/14/2015 · Construction
    In March 2013 a catastrophic sinkhole collapse swallowed a central Florida bedroom killing the occupant without notice. The home was a total loss and the event made national news making many property managers keenly aware of the costs and dangers of sinkholes. Residents of the Northeast are not immune from these occurrences. Understanding possible causes and remedies should help with decision making at all levels of property management and ownership.

    9/1/2015 · Construction
    Community associations, building owners, engineers, contractors and property managers deal with the constant battle of keeping water out of the building envelope, but sometimes the water that causes stains, mold and decay actually originates from within the building envelope. The cold temperatures of the winter months combined with specific interior conditions will result in excessive condensation. The condensation may be in the attic, basement and crawl spaces or inside wall cavities. Deficiencies in the original construction or recent reconstruction of exterior wall cavities, basements, crawl spaces and/or roofs /attics can exacerbate the conditions resulting in excessive condensation conditions and potential for damage and mold development. Sometimes, the conditions may be seen but many times the condition and subsequent damages may be hidden from view and worsen with each passing winter season, escalating repair costs.

    7/22/2015 · Construction
    "Where were YOU when the lights went out?" was a famous slogan from the 1965 Northeast Blackout, but a better slogan in light of the more recent Superstorm Sandy Blackout of 2012 might be "How did YOUR building perform when the lights went out?"

    6/16/2015 · Construction
    We have been responding to homeowner's complaints of sagging ceilings in the living space of townhomes which were built in the 1980's. Beginning in 2010 and continuing through today, Falcon Engineering has observed the condition of ceilings in over 30 homes in a Lincoln Park, NJ townhome community of close to 400 homes. Our findings are that upwards of 80% of the homes investigated have deflection which exceeds design criteria and are in need of repair. Repairs are relatively simple, but costly to the Homeowners Association having responsibility for the structural components of these buildings. Because of the need for financial planning, Associations want to understand the factors which influence the failures of these aging structures. For the purposes of this discussion, we are talking about failures which occur due to mysterious origin, rather than catastrophic failures of excessive wind or snow loads, or abuse from excessive loads that the trusses were not designed to accommodate (such as water beds or heavy stone finishing materials).

    5/15/2015 · Waterproofing
    It's that time of year again. That snow that is pretty for some is scary for others. You have experienced, read or heard about ice damming. You are familiar with the damage the phenomena can cause. Perhaps your Association has even spent several hundred thousand or even over a million dollars on roofing improvements and/or replacements within the last few years. Why do we have leaks from ice damming? Was the roof replacement performed correctly or designed correctly? The answer is simple, with a properly designed and installed roof system, the possibility of damage resulting from ice damming should be significantly reduced.

    4/16/2015 · Construction
    Manufactured stone is a very popular product for both the interior and exterior of homes and buildings. There are many manufacturers of this type of cladding system, Cultured Stone® and Coronado Stone® among the most recognized names. A man-made stone manufactured primarily for decorative purposes, these systems are typically comprised of cement, natural aggregates and iron pigments. In order to give manufactured stone a realistic appearance and shape it is often created by using molds of actual real natural stones. Like many building materials, the use of manufactured stone has both advantages and disadvantages, and installation is vital to its long term success.

    6/25/2014 · Construction
    A condominium development located in northern New Jersey was experiencing water infiltration and severe cracking in the concrete foundation walls and floors in the garages. In support of the Association's overall litigation approach, Falcon performed concrete crack mapping, concrete petrographic analysis, and overall concrete evaluation.

    5/28/2014 · Construction
    A New York City building underwent litigation pertaining to the construction of an addition to the existing structure and resultant structural support system depriving tenants of proper light and air through their existing windows. Falcon performed a light and air study on the effect of both the addition and the structural support system on lighting and air flow in defense of the claim.

    4/16/2014 · Construction
    A condominium building located in northern New Jersey was experiencing water infiltration into various locations around roofs, curtain wall systems, and balcony access points. The Condominium Association engaged Falcon to investigate these issues in support of their dispute resolution with the Developer

    4/20/2011 · Construction
    As your community or building ages, it will require an increasing amount of maintenance and large scale replacement or improvement projects will become necessary.

    4/25/2007 · Construction
    Exterior Insulation and Finish Systems (EIFS) include a group of exterior cladding systems that was introduced from Europe to the United States approximately 30 years ago. EIFS was first used in Europe after World War II to reclad many bombed and damaged buildings

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    Shepherd Consulting Services
    John D. Shepherd, RRO, RRC
    Registered Roof Observer, Registered Roof Consultant
    PO Box 10010
    Torrance CA 90505
    USA
    phone: 310-378-0791
    fax: 310-378-0794
    John D. Shepherd, RRC, RRO, founder of Shepherd Consulting Services, a division of Shepherd Roof Consulting, has been actively involved in the Roofing and Construction Industry for over 40 years. He has spent 10 years as an active roofing contractor and the last 18 years as a Roofing, Waterproofing, Sheet Metal, and Exterior Wall Consultant.

    Over the last 18 years, Mr. Shepherd attended about 1100 hours of continuing education courses related to roofing, waterproofing, sheet metal, exterior walls, windows and other various building envelope components. He is an RCI Registered Roof Consultant and Registered Roof Observer, a HAAG Certified Residential and Commercial Roof Inspector, a licensed roofing contractor in California and Arizona, and a Certified Building Science Thermographer.

    Mr. Shepherd has been retained in over 400 construction defect litigation cases, representing plaintiffs, developers and/or sub-contractors. He has been deposed more than 60 times, testified in over 20 trials and has extensive mediation experience as well.

    Areas of Expertise:
    • Construction Defect
    • Water Intrusion Investigation
    • Property Loss Damage Claims
    • Personal Injury Claims
    • Standard of Care and Building Code Issues Related to Roofing, Sheet Metal, Waterproofing, and Building Envelope
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    Mark C. Vanderslice
    22765 La Palma Avenue
    Yorba Linda CA 92887
    USA
    phone: 714-970-7400
    fax: 714-970-7474
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    Mark VandersliceMark C. Vanderslice has been actively involved in almost all aspects of the Roofing and Waterproofing industries since 1978. Mr. Vanderslice is an active member of RCI, Inc., formerly The Roof Consultants Institute, an international association of building envelope consultants who specialize in design, investigation, repair and management of roofing, exterior walls and waterproofing systems. In 1984 Mr. Vanderslice was the 16th to receive certification of 426 nationally recognized Registered Roof Consultants in the United States from a professional membership of approximately 2,800.

    Mr. Vanderslice's expertise includes performing architectural design reviews for roofing, waterproofing and building envelope exteriors for the purpose of verifying constructibility, conformance to material manufacturer's requirements, industry standards and Building Code requirements. He also performs complex leak investigations in order to determine the Cause and Origin of Leaks as well as developes comprehensive and effective scopes of long-term repairs. His services are available for cases involving water intrusion from various sources including roofing, waterproofing, sheet metal flashings, wall systems inclusive of stucco, stone cladding, masonry, cavity walls, DEFS, EIFS, Rain Screen and metal panels as well as waterproofing systems and virtually all types of water intrusion and related construction defects.

    Mr. Vanderslice has been designated as an Expert Witness in more than 550 cases and has been retained by Plaintiff, Defense, and as a Neutral Third Party. Mr. Vanderslice has provided expert witness testimony in over a dozen trials and been deposed well over 150 times.

    Areas of Expertise:
    • Architectural Codes / Design & Standards
    • Ashaltic Shingle Roofs
    • Built-up (BUR) Roofs
    • Construction Defects
    • Construction Design
    • Construction Leakage Diagnostics
    • Copper Roofs
    • Deck Waterproofing
  • EIFS
  • Window & Door Water Intrusion
  • Forensic Inspection & Evaluation
  • Roofing
  • Stucco
  • Water Leaks / Moisture Intrusion
  • Below-Grade Waterproofing
  • Exterior Wall Systems
  • View Consulting Profile.
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    Jeffrey E. Bartrem
    Construction Inspection Consultant
    PO Box 264
    Williamston MI 48895
    USA
    phone: 517-655-6903 or 517-944-1380 (cell)
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    Jeffrey E. Bartrem is a Certified Building Inspector with over 30 years of experience as Residential Rehabilitation Specialist, Building Official, Plan Reviewer, and Deputy Fire Inspector. He has performed tens of thousands of inspection on residential, commercial, and industrial properties.

    Mr. Bartrem's experience includes both national and international projects including ones in Abu Dhabi in the United Arab Emirates. He has vast knowledge and understanding of Construction Practices Assessments, International Code Council, the International Accreditation Service, Basic Building Codes, ICBO, ICC, and the Uniform Building Code.

    Mr. Bartrem has been offering litigation support services for 35 years. He is often called upon to perform thorough research to disqualify opposition reports, depositions, and testimony. Mr. Bartrem has been qualified in many District and Circuit Courts, as well as Federal Courts, and has never been disqualified.

    Jeffrey Bartrem has appeared for builders at licensing hearings, conducted draw request inspections, negotiated for building and business owners with building officials, fire officials and prosecutors, performed complex sale inspections, prepared maintenance forecasts, managed multi-million dollar renovations, as well as represented many homeowners in building code and workmanship claims.

    Areas of Expertise:
    • Wrongful Death
    • Premises Liability
    • Property Liability
    • Negligence Actions
    • Building Code Expert
    • Residential Structures
    • Commercial Structures
    • Fire Issues
    • Electrical
  • Mechanical
  • Plumbing
  • Zoning
  • Workmanship
  • Water Testing
  • Building Inspections
  • Maintenance
  • Building Code Research
  • Construction Safety
  • View Jeffrey Bartrem's Consulting Profile.
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    Daniel D. Bawden, GMB, CAPS, CGR, CGP, JD
    5008 Locust St.
    Bellaire TX 77401
    USA
    phone: 713-723-8850
    fax: 713-729-7125
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    Daniel D. Bawden, GMB, CAPS, CGR, CGP, JD, has over 35 years of experience in the Construction Industry. He is a Graduate Master Builder, Certified Graduate Remodeler, Certified Aging in Place Specialist, and a Certified Green Building Professional.

    Mr. Bawden serves as an accredited Instructor for the National Association of Home Builders, certifying other builders in his own specialties. He earned both his Bachelor’s degree and Law degree from Baylor University. He is currently serving as Vice Chair of the NAHB Remodelers Council, on track to be the national spokesman for the remodeling industry in 2017.

    Litigation Support - Mr. Bawden has an outstanding reputation for winning cases. His combination of legal and hands-on construction experience, along with his numerous certifications, make him a highly credible witness in all facets of residential construction.

    Mr. Bawden helped write the "Residential Construction Performance Guidelines," which is the primary criteria for construction standards. With trial experience on behalf of both homeowners and builders, Mr. Bawden is a likeable persona, an excellent and clear communicator, effective before arbitrators, judges, and juries alike.

    Areas of Expertise:
    • Construction Cost Estimates / Analysis
    • Construction Defects
    • Project Management Disputes
  • Construction for the Disabled (ADA)
  • Construction Delays
  • Code Compliance / Violation
  • View Dan Bawden's Consulting Profile.
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    Joey T. Lee
    Real Estate Inspector & Construction Expert
    24832 Pointe Trinity #B
    Dana Point CA 92629
    USA
    phone: 949-682-6668
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    CAREER SUMMARY:

    •California-licensed general contractor with over 25+ years’ experience in both commercial and residential construction. Involved in hundreds of residential repair, remodel and add-on jobs and commercial property tenant-improvement projects.

    •International Code Council (ICC) Certified Residential Combination Inspector with certifications in all four disciplines; Building, Electrical, Mechanical, and Plumbing.

    •Over 20+ years’ experience as ASHI Certified Inspector & Master CREIA Inspector (MCI). Performed over 8,000 property inspections of residential and commercial properties.

    •Educational speaker for ASHI/CREIA monthly chapter meetings and annual conferences.

    •Veteran, United States Marine Corps, honorably discharged Sergeant, 1977.

    •Experienced construction consultant and expert witness.

    CURRENT POSITION:

    JOEY T. LEE - PROPERTY CONSULTANT 2009 - Present

    Business Owner Inspector / Consultant

    Perform state-of-condition, re-sale and triple-net lease inspections of residential and commercial properties for potential buyers, building owners, and leasers of commercial real estate. Provide consultation services in residential construction & construction defect conditions, and other construction-related issues.

    PROFESSIONAL CERTIFICATIONS

    Licensed General Contractor – California “B” 644246 1992 - Present

    (ICC) International Code Council, Certified Member # 1018563 1996 - Present

    Residential Combination Inspector #1018563-95 1996 - Present

    Residential Building Inspector #1018563-100 1996 - Present

    Residential Electrical Inspector #1018563-101 1996 - Present

    Residential Plumbing Inspector #1018563-102 1996 - Present

    Residential Mechanical Inspector #1018563-103 1996 - Present
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    G. Peter Vander Heide, AIA, LEED AP
    Consulting Architect
    708 Fulton Street
    Philadelphia PA 19147
    USA
    phone: 215-925-8471
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    Peter Vander Heide Architecture Expert PhotoPeter Vander Heide, AIA, LEED AP has 40 years of experience as a registered Architect in the construction industry. His professional experience includes the design of residential, commercial, and institutional/industrial facilities for public and private owners. He has managed both architects and engineers in several organizations.

    Mr. Vander Heide's career has encompassed design and analysis of structural work for a manufacturer of space-frame systems; management, development, training, and computer programming work in a large, multi-disciplined design firm. He also has management, capital budgeting, and project work experience as the owner of a large collection of public buildings in a major city.

    Mr. Vander Heide has broad experience with codes and standards including the International Building Code, BOCA, the Uniform Building Code, and the Southern Building Code. His hands on experience includes construction inspections across North America

    Peter Vander Heide began offering litigation support services in 2001, after almost 30 years collecting experiences in a broad range of settings and projects as a professional. Since then, he has been involved in over three dozen cases. He offers services to attorneys for both Plaintiff and Defense. Mr. Vander Heide has testified in cases in Pennsylvania and New Jersey. He has be certified as an expert in architecture in the U.S. Courts, Eastern District of Pennsylvania..

    Areas of Expertise:
    • Construction Defects
    • Construction Delays and Disputes
    • Construction Accidents and Injuries
    • Stairs
    • Leaks and Moisture Intrusion
    • Building Science
    • Building Codes
    • Code Compliance
    • WUFI Analysis - certified Instructor
    • Stucco
  • Windows
  • Masonry
  • Roofing
  • Building Envelope
  • Air Barriers
  • Vapor Barriers
  • Architectural Standard of Care
  • AIA Contracts
  • Change Orders
  • Construction Claims
  • View Peter Vander Heide's Consulting Profile.
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    Dr. Elliott E. Dudnik, PhD
    FAIA, NCARB, LEED AP, CSI, ICC
    913 Wesley Avenue
    Evanston IL 60602
    USA
    phone: 847- 866-7760
    fax: 847-866-7897
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    Dr. Elliott E. Dudnik, PhD, FAIA, NCARB, LEED AP, CSI, ICC, is Principal of Elliott Dudnik + Associates, Fellow of the American Institute of Architects and Professor Emeritus of Architecture at the University of Illinois-Chicago, with more than 50 years of professional experience as an Architect, Structural Engineer and Planner encompassing numerous commercial, residential, industrial and public building projects. As a noted educator-researcher, award and grant recipient, and author of more than 30 publications, Prof. Dudnik has lectured and taught at major universities in the US, Asia, Australia and Europe and consulted on Building Code Development, Building Facade and Porch Failures, Inspector Training, and Accessibility.

    Dr. Dudnik's litigation support activities on behalf of both plaintiffs and defendants include investigations, analyses, expert witness reports, depositions, and testimonies that draw upon his extensive professional experiences as well as many years of teaching and lecturing to convey and explain complex concepts to judges and juries. Dr. Dudnik has now been engaged in more than 70 cases involving Architectural and Structural Engineering, Building Design and Construction, Defects, Collapses and Failures, and Building-Related Injuries.

    Forensic Architectural Services Include:
    • Expert Witness and Litigation Support
    • Code Violation, Compliance and Interpretation
    • Building Failures and Remedial Design
    • Building Envelope and Water Intrusion
    • Design and Construction Defects
    • Slip, Trip and Fall and Other Personal Injuries
    • Handicapped Accessibility and ADA Compliance
    • Errors and Omission, Professional Liability and Standards of Care
    View Dr. Dudnik's Consulting Profile.
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    Heather Suttle
    Marketing Manager
    8811 FM 1960 Bypass Road West
    Suite 400
    Humble TX 77338
    USA
    phone: 281-358-4441
    fax: 281-358-2517
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    EFI Global is a full-service Engineering, Fire Investigation, Environmental, Health and Safety, and specialty consulting firm. Over the last four decades, they have grown from a boutique firm to become a recognized leader in engineering failure analysis, origin and cause investigations, and environmental consulting. This expertise coupled with the extensive coverage of our 27 national offices, more than 400 professionals, and global work abroad capability allows EFI Global to deliver timely responses that consistently meets their clients’ expectations.

    EFI Global's continuing record of success has earned them several rankings in national publications including Engineering-News Record, Business Insurance, and Zweig White. EFI Global employs professional engineers licensed in nearly all 50 states, as well as licensed fire investigators and environmental professionals. Their team of licensed professionals and numerous strategic partnerships can respond to most projects within 48 hours, regardless of location.

    When faced with litigation, EFI Global's clients rely on valid, factual conclusions that translate scientific and technical facts into understandable concepts that can be supported with expert witness testimony. From thousands of fire cause and origin investigation for cases in federal, district and state courts, EFI has expanded its testimony expertise to assist the legal community with disputes arising from forensic engineering, accident reconstruction, environmental consulting, asbestos-related cases, mold and indoor air quality (IAQ) litigation support, and catastrophe claims.

    Expert Witness Services:
    • Insurance Litigation
    • Environmental Litigation
    • Product Liability
    • Transportation & Accident Reconstruction
    • Construction Defects
    • Failure Analysis
    • Professional Liability
    • Contract Law
    • Catastrophic & Disaster Litigation
    • Real Estate
    View EFI Global's Consulting Profile.
    5/31/2016 · Damages
    Both large-scale catastrophe-induced losses and small-scale single event losses have the potential to impact employees, individuals, insurance personnel, general contracting restoration firms and associated property loss. In addition to the actual water-loss event, secondary losses can become equally as devastating depending on pre-existing and/or event-related building conditions, and the role the insured's take as part of required catastrophe restoration activities. During the water loss event, all project related information and environmental data generated is an integral part of the decision making process that may be disclosed at various stages to inform all the various "parties" involved with the project. All in all, a well-executed restoration project can minimize common delays and expenses of an ill-conceived and managed project.

    Sectors of the construction industry are reporting resurgence and growth in 2013. Single and multi-family housing, commercial, institutional and public works construction is predicted to increase up to 28% in some areas. This is good news for the industry and the economy but the increase in construction activity has historically led to an increase in construction accidents.

    In the course of an arson investigation one of the standard procedures is, when possible, to collect the clothing of arson suspects and have them tested for ignitable liquids. The hypothesis being that if the clothing tests positive for the same ignitable liquids that are found in the fire debris, it is good circumstantial evidence to place the suspect at the scene with an ignitable liquid.

    A growing concern in the insurance sector is soot and smoke damage claims due to wildfires. Some of these fires can affect properties hund reds of miles downwind, causing the potential number of claims to be astronomical. Besides the known risks for respiratory and other health problems, smoke, soot, and char can cause physical damage ranging from settled ash to property damage.

    3/24/2015 · OSHA
    Every year, approximately 3,600 workers are permanently disabled, and on average, one worker per day is killed, as a result of electrical incidents in the workplace.* To prevent these types of electrical injuries and deaths, building owners and managers should apply the safeguards included in NFPA 70E, the standard utilized by the Occupational Safety & Health Administration (OSHA) for building electrical assessments. OSHA utilizes the National Fire Protection Association's (NFPA) 70E Standard for Electrical Safety in the Workplace to provide improved safety procedures for workers through proper warning labels, restricted access notification, personnel training and personal protective equipment (PPE). OSHA compliance will minimize workplace injuries, accidents, illnesses, equipment damage, production losses, and legal costs, which are all avoidable and unnecessary factors in any business.

    10/29/2014 · Fires & Explosions
    The world of fire investigations is always changing and EFI Global is active in its research and testing methods. In an effort to support insura nce, subrogation, loss prevention and litigation relating to losses, EFI Global's chemical laboratories regularly perform chemical analysis on new products to identify potential accelerants and igni tion sources.. Recently, EFI Global laboratories conducted proactive chemical testing on a new matchless fire starter. This commercially available product is marketed and used to start wood and campfires.. The results of EFI Global's testing revealed the limitations and significance if this product is used as an accelerant.

    9/17/2014 · Environment
    Financial institutions require the completion of environmental due diligence of a commercial real estate collateralized lending transaction for many reasons. They may wish to understand the environmental condition of the proposed collateral and ensure a Borrower's compliance with applicable regulations prior to making a loan; to reevaluate the collateral during a renewal or refinance transaction; to determine the collateral's condition at the time of a loan default; or to obtain information about an unexpected environmental condition encountered within the loan term.

    Fire origin and cause investigation, and mold and asbestos testing of a six-story office building

    EFI Global (EFI) was hired by a legal team representing a tire product manufacturer to replicate the use of a tire inflation product in an off-road tire. Litigation was prompted when the tire inflation product was used in an off-road tire that exploded and resulted in a fatality. Our team was asked to evaluate the product when used when used in accordance with the manufacturer's instructions as written on the products label; when used in concert with pure oxygen, and when used in concert with compressed air.

    2/27/2014 · Damages
    Historically, fires and automobile accidents have been the primary types of property and casualty claims that presented a potential avenues of for subrogation. However, with the increased costs of mitigating the extent of water damage and reducing the potential for mold growth, claims involving large water losses have become another important area with subrogation potential.

    Mechanical ventilation systems have evolved from passive gravity vents (circa 1900) by adding modifications to improve comfort, occupant health, and energy efficiency. Early on, the maintenance of the system basically related to making sure the furnace was on and the windows would open. If you were lucky the school might have draft deflectors on the windows so the wind would not blow directly on your head.

    11/13/2013 · Damages
    Following a hurricane, damages to a residential structure can range from structural distress, to small areas of mold growth to a total loss of the structure. Storm damage can affect multiple components of a structure including the roof, windows, siding, foundation and interior finishes. Wind or water is often the most common cause of damage to residential properties; however, there are many factors to consider when assessing the various causes of damage. Some of the factors include material use, age, condition and construction methods as well as type, location and extent of the damage. It is essential that a professional with hurricane damage assessment experience evaluate these factors to accurately define the cause.

    One sunny spring morning, on a rural road just outside of Houston, Texas, Molly Jackson, a vibrant 16-year-old girl with a bright future and a new driver's license, was behind the wheel of her father's brand new Chevrolet C2500 crew cab pickup truck. At the same time, just seven seconds before she would draw her last breath, Rhonda Simmons, a 46-year old divorced mother of two teenagers, was approaching from the opposite direction in her sleek and sporty Pontiac Trans Am.

    Editor's note: A trend to require more fire safety equipment in residences and nursing homes will reduce deaths and injuries, both among firefighters and the general public, says E. Metts Hardy, vice president/Fire Investigations for EFI Global (www.efiglobal.com), a Kingwood, Texas-based provider of engineering, fire investigation, environmental, accident reconstruction, and laboratory testing services.

    8/21/2013 · Insurance
    Nationwide, water-loss claims continue to climb. In California alone, such claims have risen dramatically, with the percentage of homeowner claims growing from 24 percent in 1997 to 32 percent in 2001, costing insurers $1.7 billion. In a single year in California, between 2000 and 2001, claims rose $47 million. For some insurers, this meant that 40 percent of claim payments were for water losses.

    8/7/2013 · Insurance
    Water damage is costly to both homeowners and insurance companies. It is estimated that the cost of household water damage in California, alone, exceeded $500 million for 2002. While the number of water-related claims varies year to year, the average amount paid for such claims increased steadily from $2,577 in 1988 to $3,646 in 2002.

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    Heather Suttle
    Marketing Manager
    8811 FM 1960 Bypass Road West
    Suite 400
    Humble TX 77338
    USA
    phone: 281-358-4441
    fax: 281-358-2517
    EFI-Logo.gif
    David AmoriDavid P. Amori, PE, RRC, Vice President of Engineering at EFI Global, is a Structural / Geotechnical Engineer and Registered Roof Consultant with more than 22 years of domestic and international experience in building and heavy civil construction and engineering. His responsibilities include the oversight of the engineering service line, product delivery, quality, training and mentoring, business development, and executive team liaison.

    Mr. Amori's background includes geotechnical engineering, construction materials testing, and domestic and international construction management of commercial and heavy civil projects. He has performed hundreds of forensic investigations in North and South America.

    David Amori is a registered professional engineer in the states of Colorado, Louisiana, New York, Oklahoma and Texas. He holds a Bachelors of Science in Civil Engineering from the University of Colorado, and a Masters of Science in Construction Management from the University of Birmingham.

    Mr. Amori provides Litigation Support services to attorneys for both Plaintiff and Defense. He has been retained numerous times and is court qualified as a structural and geotechnical engineer.

    Areas of Expertise:
    • Structural Assessment
    • Construction Defect Investigation
    • Foundation Evaluation
    • Structural Fire Damage Assessment
    • Roof and Building Envelope Assessments
    Representative Litigation Support
    • Pearland, TX - Design team defendant expert in a case involving the code compliance, structural integrity, and functional performance of roof of a newly constructed assisted living facility
    • San Antonio, TX - Expert investigating the performance of window systems, roof systems, and exterior wall finishes
    • Austin, TX - Expert investigating the performance of custom window systems
    View David Amori's Consulting Profile.
    3/2/2016 · Construction
    For the forensic investigator, damage assessments require taking a global look at the loss to determine all causes, including possible design and construction deficiencies.

    2/9/2016 · Construction
    Large losses present a unique set of challenges from the perspective of managing an expert or team of experts. For the purposes of this column, let's assume that a large loss is one that exceeds $250,000. These might include heavy civil construction, infrastructure, transportation, or a catastrophic event affecting a large building.

    2/17/2015 · Construction
    Roof collapses can be sudden, catastrophic events caused by a particular loading condition or combination of loads. Roof collapses often happen with little or no warning, making this a particularly dangerous event. When investigating a roof collapse, the obvious perpetrators are examined: how much snow was on the roof, were the drains plugged up, were the winds in excess of the design wind speed and many others. Occasionally, the roof can be doomed to collapse months or years before an event due to design or construction related deficiencies allowing for a subrogation opportunity to recover cost of repairs.

    12/9/2014 · Construction
    Often after an event like a tornado, windstorm, water surge, or fire, the damage sustained to some property structures exceeds the value of it. In these cases, an engineer might be asked to determine if the remaining foundation system is suitable for reconstruction. The motivation for this is fairly straightforward: the property may have been underinsured and saving the foundation represents an effort to reduce the reconstruction cost, or there is a desire to get the structure rebuilt as quickly as possible. In the interest of time and money, an evaluation of the suitability of the foundation for reuse can be performed. There are three main questions for the engineer to answer: Is the slab damaged by the event? Are there any other factors, such as differential foundation movement, that would prevent the slab being reutilized? Are there any code considerations that prevent the slab from being reutilized?

    8/8/2014 · Construction
    In the wake of a Hurricane the monumental task of beginning to assess the losses and respond to the thousands of claims inevitably includes a number of claims concerning the functional assessment of commercial roofing systems. The design and construction of a roof system requires input from several disciplines including thermal considerations (Mechanical), fire resistance (Architect/Municipality), equipment carrying capacity (Structural), ability to drain and/or to store water (Architect/Civil), aesthetics, and the ability to resist any number of transient loads (Structural). The assessment of the damage sustained by a roof system during a storm event is an equally broad endeavor requiring the expert to call on a number of disciplines.

    3/20/2014 · Construction
    Building envelope assessments for storm-related damage is a normal part of job for the property adjuster and forensic consultant. The assessment of storm-related damage inevitably becomes a question of whether the observed condition pre-dates the storm or is the result of sudden and recent event. In fact, the question may very well be, "Did the observed condition exist during or even before the building was constructed; is the condition the result of a construction or design related defect?"

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    James R. Drebelbis, AIA, PE
    2909 Cole Ave
    Suite 100
    Dallas TX 75204
    USA
    phone: 214-468-8118
    James-Drebelbis-Architect-Structural-Engineering-Expert-Photo.jpg
    Drebelbis Engineering is an Architectural and Engineering firm specializing in Forensic Engineering. Their combined background in architecture, engineering, and business make Drebelbis Engineering uniquely qualified to address the complexities found in forensic engineering assignments.

    A Dallas-based company founded in 1996, their focus is structural, architectural and civil engineering as applied to buildings and site systems. They bring technical engineering knowledge, testimony, and remedy when construction fails to perform and when construction processes derail.

    Principal, James R. Drebelbis, AIA, PE, is an Architect and Structural Engineer with over 40 years of experience in all phases of building construction and performance, project management, and producing documents for building construction (drawings, specifications, change orders).

    Litigation Support - Mr. Drebelbis specializes in Forensic Engineering for attorneys and insurance companies. His understanding of building types and construction systems includes site construction and earth retaining structures as well as residential, commercial, manufacturing, and institutional buildings.

    Mr. Drebelbis is retained for Cause and Origin of Structural Failures and disputes about construction performance that often emphasize the obvious (leaks, cracks, collapses). His expertise is available to attorneys representing both Plaintiff and Defendant. Services include engineering investigation, documentation, testimony, and preparation of Certificates of Merit.

    Education/Licenses: - BS Arch. Engineering, MBA, Professional Engineer (Texas, Alabama, Kansas, Oklahoma, Louisiana, New Mexico), Architect (Texas)

    Areas of Technical Experience and Expertise:
    • Construction Technology
    • Building Codes
    • Forensic Engineering
    • Fire, Weather, Disaster Related Damage
    • Roofing & Waterproofing Systems
    • Water and Moisture Intrusion
    • Stair Construction
    • Performance of Building Materials
    • Retaining Structures
    • Application of Building Materials
  • Selection of Building Materials
  • Structural Engineering
  • Site and Building Drainage
  • Foundation Design
  • Soil Behavior
  • Concrete Workmanship and Design
  • Contract Documents
  • Professional Ethics
  • Slip, Trip, Fall
  • Corrective Construction
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    Leslie Noel
    Marketing Director
    Corporate Headquarters
    11321 Plantside Drive
    Louisville KY 40299
    USA
    phone: 800-482-5611
    fax: 502-267-6973
    donan_logo.jpg
    Donan, a family owned company founded in 1947, provides full-service Forensic Engineering and Fire Investigation Services. For over 60 years, Donan Engineering has been providing unbiased answers to their client’s complicated questions. Their team of licensed and experienced forensic experts provides investigative services in the fields of engineering investigations, fire and explosion origin & cause, roofing investigations, and component testing. The diversity of their multidisciplinary staff allows them to provide not only a complete service, but a complete service whose conclusions can be successfully and completely supported.

    Donan Engineering has become a richly diverse, industry leader with over 250 employees operating from 50 offices in 27 states including Alabama, Arkansas, Florida, Indiana, Illinois, Iowa, Kansas, Kentucky, Maryland, Massachusetts, Michigan, Mississippi, Minnesota, Missouri, Nebraska, Ohio, Tennessee, Wisconsin, Georgia, North Carolina, South Carolina, Pennsylvania, Louisiana, Texas, West Virginia, Virginia, and Oklahoma. Throughout their growth, Donan has maintained their commitment to providing exceptional customer service, unparalleled quality, unmatched integrity, and timely reporting. Most importantly, they pride ourselves on delivering their clients quality services at an affordable price.

    Services Include:
    Engineering Investigations
  • Bridges
  • Foundations and Basements
  • Geotechnical / Sink Holes
  • Lightning
  • Low and High Voltage
  • Mechanical Systems
  • Retaining Walls
  • Steel Construction
  • Trusses
  • Vehicle Mechanical Studies
  • Vibrations: Earthquakes and Blastings
  • Water Infiltration / Mold
  • Wood Frame Construction

  • Fire / Explosion Origin and Cause
  • Commercial Fires
  • Equipment Fires
  • Vehicle / Residential Fires

  • Roofing Investigations
  • Commercial
  • Residential - Asphalt Shingle
  • Residential - Slate, Tile, Etc.

  • Heavy Trucks
  • Motorcycles
  • Passenger Vehicles
  • Over the past several years, there has been a clear trend of phasing out "dry-charge" air conditioners and heat pumps. What happened, why are some contractors still selling them, and what are the current common repair/replace options? Read this insightful article for everything you need to know on the topic.

    12/2/2016 · Engineering
    The term plumbing is derived from the Latin word "plumbum," the name of the metal lead that was the preferred material used by the Romans to construct their empire's water supply systems. This bit of history is even relevant today as the continued use of this potentially toxic metal has made headlines because of recently exposed problems in the Flint, Mich., water supply.

    7/29/2016 · Forensics
    Most forensic investigation projects include a scope to determine the cause of some damage or condition. Project scopes often request determining the cause and origin of the damage. Since insurance policies contain descriptions of covered and non-covered situations, clearly specifying causes and origins is crucial for clients' coverage decisions. This article discusses the differences between and significance of these two important terms.

    4/18/2016 · Construction
    Brick masonry chimneys have been prevalent for centuries, but it wasnt until recent decades that brick-clad, wood-framed chimneys became common in residential construction. This trend resulted from the increasing popularity of metal insert fireplaces. While they may appear similar from the exterior, the structure and weather-resistant envelope of wood-framed chimneys are very different than masonry-built chimneys. Prior to studying damage, it is important to understand critical elements in the structural support and weather-resistant envelope of wood-framed chimneys and the types of damage that can result from improper construction.[1]

    Fires can be caused by devices that fail due to a manufacturer's defect. Quality assurance procedures have gone a long way to eliminate out-of-box failures but manufacturers sometimes bypass quality checks on consumer products for competitive reasons. Even the most ethical companies are susceptible to human error that can cause an almost imperceptible change in an otherwise flawless manufacturing procedure.

    As the days get shorter and temperatures turn milder, most HVAC systems are taking a well-earned vacation. For a short while, a cool breeze through open windows will be enough to keep us comfortable in our homes. But soon, homeowners will switch their thermostats from cooling mode to heating mode, and some of them will unfortunately discover their HVAC system does not heat. It's time to pull out those extra blankets and make the call to a service professional sooner than expected.

    12/21/2015 · Construction
    Wood bowstring trusses were used extensively in commercial buildings from the 1920s to the 1960s. Wood bowstring roof trusses provided long clear spans necessary in warehouse and industrial buildings. Many roofs supported by bowstring trusses are still in service today. Compared with other structural timber-truss types, bowstring trusses have exhibited more frequent structural problems. The structural deficiencies encountered are attributable to deficiencies in the original design of the trusses combined with damage due to exposure and age.

    9/28/2015 · Engineering
    The National Fire Protection Association (NFPA) has released a 2015 edition of NFPA 70E: Standard for Electrical Safety in the Workplace. It covers and assists in complying with the Occupational Safety and Health Association's requirements, including changes to requirements since the last edition. For personal safety in forensic studies it is important to stay informed of these updates. NFPA 70E covers arc flash risk assessment, establishment of arc flash boundaries, requirements of Personal Protective Equipment (PPE), use of PPE within the arc flash boundary, and equipment labeling requirements regarding arc flash hazards. The following examples illustrate the importance of staying abreast of the latest standards.

    7/16/2015 · Construction
    History shows us that building codes have been around for a long time - in fact, the earliest known was around in 2000BC[1]. Penalties were also much harsher for construction defects. If a builder constructed a house that collapsed and killed the owner, the builder was not fined, but was put to death. The United States has been a country with diverse codes - as many as 5,000 at one time. More recently, however, various states and municipalities have adopted "model" codes such as the International Building Code or International Residential Code. These provide a "base" and may be used as written or an Authority Having Jurisdiction (AHJ) may amend certain parts of the model code, making it more stringent and/or specific for a certain area.

    5/14/2015 · Forensics
    Whether it is helping us formulate our opinion or confirming an initial diagnosis, technology plays a valuable role in forensic engineering work. Following are a few examples of existing technology available to Donan's project managers. Though not standard issue, these tools are utilized when necessary to accurately determine or confirm a cause of loss.

    There are many types, manufacturers, and sizes of commercial HVAC systems which can make it difficult to create general guidelines for repair procedures and estimates for hail-damaged units. This guide uses the most common "light commercial" rooftop units (RTUs), which are 5-tons, 7.5-tons, and 10-tons in capacity, for estimating time to repair or replace.

    Imagine for a moment that you are sitting in your home, listening to the rain while reading your favorite novel. Then suddenly you hear a roar of thunder and your home becomes dark. What just happened? You may have just experienced a power surge. Although lightning is not the most common cause of this phenomenon, it is excellent for illustrating what a power surge is and how it can affect your home. A power surge is a term used to describe a condition where the voltage and or current increases beyond its normal levels. Power surges, when due to the elevation of the voltage being supplied by the electrical utility company, have the potential to change data streams, interrupt electrical control circuits, burn out components, cause arcs, create shorts between conductors, overload systems, and cause system failures. The most common causes of power surges are indicated as follows:

    1/7/2015 · Construction
    Concrete is a desirable construction material due to its inherent strength and durability, which make it well-suited for many applications in residential and commercial construction, especially foundations, floor slabs, driveways, sidewalks, and roads, among other things. In these applications, concrete that is properly designed, mixed, placed, and maintained will perform exceptionally well for many years. However, poor design or mix, improper placement, finishing techniques, or inadequate maintenance may result in concrete that does not perform as intended. Aside from cracking, which is probably the most common form of distress to concrete, since virtually all concrete will crack as it cures, surface distress due to scaling, spalling, and popouts are the most common forms of damage.

    12/2/2014 · Construction
    The relationship between wind, hailstone velocity, and impact energy is based on an understanding of fundamental physics. Over a half century of laboratory research and field studies have determined that the severity of hail damage to a roofing material is contingent on the kinetic energy at the point of impact and the roofing material's resistance to that impact energy. These studies have found that a hailstone must be of a certain mass (i.e., size), and it must be traveling at a certain speed (velocity) to result in functional damage to the roofing material. The kinetic energy is a composition of mass and velocity, defined by the following equation:

    10/17/2014 · Construction
    Chances are, it's happened to you. An unexpected period of cold weather occurs and temperatures drop well below freezing for an extended period of time. One morning you attempt to turn the water on in the kitchen sink and...nothing. Hot water? Nope. Cold water? Nope. What happened? Did you forget to pay the water bill...again? Chances are, your pipes are frozen. "How can that happen? They are inside the house!", you may say; however, just because your water lines are inside the building envelope, does not mean they are adequately protected from freezing.

    9/4/2014 · Construction
    If hail impacts a roof covering and the effects of this impact result in some loss in the material's overall integrity or functionality, this material is classified as "hail damaged." More specifically for cedar shakes and shingles, valid hail damage is typically a new fracture of the cedar corresponding to a clean spot or scuff mark from the hailstone impact.

    7/25/2014 · Construction
    Although sags along roof ridgelines can be discovered at any time, in northern climates they are often attributed to the effects of a past snow load. To make an educated analysis of the actual cause of this phenomenon, one must have a basic understanding of the structure and the loads to which it has been subjected.

    Heating, ventilating, and air conditioning (HVAC) systems consist of many components that work in unison to create the desired comfort level for our homes and offices. A well maintained system is designed to last around 15 years, but the life can be dramatically reduced when proper installation procedures and routine maintenance are not performed.

    5/28/2014 · Construction
    Ice dams and their resultant leaks are often a chronic and expensive problem in those regions where snow-covered roofs are a common occurrence. To understand their detection, cause, and prevention requires some understanding of the dynamics of a structure's construction, insulation, and ventilation.

    A space heater is a device designed to warm a small area. These devices are typically portable, but the category does include gas- and wood-fueled models that are permanently installed; however, these are not the focus of this article.

    3/12/2014 · Failure Analysis
    Washing machine failures can create significant damage, exposing insurers and their clients to property damage. These failures often involve a high volume of water and can occur without warning. Through the examination of several hundred washing machines, the DONAN Component Testing Laboratory has identified a statistically significant failure trend in General Electric (GE) washing machines. The amount of water supplied to the tub of the washing machine is controlled by a water valve (solenoid-controlled valve) and pneumatic controls. The washing machine's load selector is a pneumatic pressure switch, which activates and deactivates the water valve.

    2/10/2014 · Construction
    Shallow foundations are the most commonly designed and constructed structural foundation system. As opposed to deep foundations where structural loads are transferred to subsurface layers or multiple depth ranges, shallow foundations transfer loads to the earth (soil) relatively near to the ground surface. Some examples of shallow foundations include building components often seen in residential construction such as spread footings, continuous foundation walls and footings, slab-on-grade foundations, and mat-slab foundations.

    1/9/2014 · Construction
    After a tornado event, devastation and destruction are found along the tornado path. Due to the wood-framed construction predominant in Texas and Oklahoma, extensive damage to a house can occur. But how do you know whether visible cracks in the Sheetrock or brick finishes are just cosmetic damage or the signs of structural failure?

    12/10/2013 · Fires & Explosions
    Automatic fire suppression systems are by far the most effective and safest means of preventing extensive fire damage and saving lives. For this discussion, we will touch on automatic sprinkler systems (building systems) and kitchen hood suppression systems. These systems range from very simple to extremely complex.

    10/23/2013 · Construction
    Summertime rolls around and people start seeing condensation on ductwork. Their first thought is that something is wrong with their air conditioner. Actually, sweating ducts have several causes. Very few are attributable to defective air conditioners.

    10/4/2013 · Engineering
    In urban and suburban areas, stormwater systems are found everywhere. From surface waterways, such as rivers, streams, and ditches, to subsurface drainage systems, such as storm sewers and culverts, stormwater systems are as ubiquitous as concrete, which is one of the reasons they are so important (Figure 1). Impervious surfaces like concrete, pavement, and roofs prevent stormwater from naturally absorbing into the ground, and the resulting runoff can cause flooding, erosion, and subsequent structural damage.

    For many years, the fire investigation industry has seen numerous fires involving livestock buildings. These fires are often high profile, especially when masses of animals are lost or injured. Many times these losses are in older structures with neglected electrical and/or heating systems. Given the interior environment, corrosion and degradation to electrical and heating components are common.

    8/16/2013 · Construction
    Cupping, buckling, and crowning are three common problems encountered in wood flooring (flooring). These problems are caused by a combination of the normal material characteristics of the flooring and improper installation of the flooring.

    7/31/2013 · Waterproofing
    While shovels, snowblowers, plows, and deicing agents are used to clear snow and ice from driveways and sidewalks during the winter, removing frozen precipitation from the roof of a house is a bit more challenging. As snow and ice piles up on the roof and subsequently thaws out, the melt-water can sometimes result in damage to the interior of the structure.

    7/15/2013 · Construction
    "Hail has damaged my concrete driveway!" How many times have you heard this claim? A homeowner whose house has experienced a recent severe hailstorm starts to notice things they never noticed before around their house.

    A Donan fire investigator uses many techniques in order to determine the origin and cause of a fire. Chief among these are the investigator's observations of the scene and the conditions surrounding the scene.

    In this age of high energy costs, the price of heating the house will increase. People will be searching for alternate sources to heat their houses.

    4/24/2013 · Construction
    In our October 2010 newsletter, Bob Whelan, P.E., discussed how to approach a roof hail study by using the scientific method. In summary, one should perform a collateral study of the property, or neighboring properties, to gather information about the particular hailstorm in question.

    3/21/2013 · Construction
    Whether to build a residence on a concrete slab or conventional crawlspace foundation is a common decision homeowners must make.

    2/13/2013 · Construction
    By: DONAN
    Is construction vibration just an annoyance, or does it have the potential to cause aesthetic and structural damage to nearby structures?

    1/7/2013 · Construction
    Attic ventilation problems can cause elevated relative humidity in an unheated, residential attic. Elevated relative humidity in the attic can promote mold growth and increase the moisture content in the wood framing to a level that promotes fungal growth and rotting.

    11/30/2012 · Failure Analysis
    Every year, Donan Engineering is asked to look at dozens of basement walls that have failed. A wall is determined to have "failed" when the structural integrity is compromised - such as with the development of a horizontal or vertical crack.

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    David M. Bekus
    45 Hunt Lane
    Skilllman NJ 08558
    USA
    phone: 732-735-7444
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    David M. Bekus has over 35 years in the Construction Industry specializing in home design, construction, and remodeling. Mr. Bekus has been a project manager, overseeing all aspects of construction from conception and approvals to final sales for single homes and developments.

    Mr. Bekus is licensed by the State of New Jersey as a building inspector (RCS, ICS, and HHS), a licensed home remodeler, and a licensed new home builder. He is also certified in Project Management, Cost Estimating, Construction Methods, Construction Site Safety, and is a EPA Lead Safe Certified Contractor.

    Litigation Support - As a seasoned expert in the construction field, Mr. Bekus adheres to building code practices and high construction standards to provide reliable advice and credible expert witness testimony. His services include project evaluations, building code inspections, and clearly and precisely written reports. Mr. Bekus' expertise is available to counsel representing both Plaintiff and Defendant and has testified in NJ superior court Areas of Expertise:
    • Industry Standards
    • Building Code Compliance, Specifications
    • Contract and Plan Specifications
    • New Construction Defects
    • Roof Issues
    • Water Issues
  • Framing Defects
  • Siding Defects
  • Concrete Defects
  • Insurance Claims
  • Poor Workmanship
  • Home Owner Association Issues
  • View David Bekus' Consulting Profile.
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    David Neagley, AIA, Architect
    Forensic Architect
    PO Box 2265
    La Jolla CA 92038
    USA
    phone: 858-354-8070
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    David Neagley Forensic Architecture Expert PhotoDavid Neagley, AIA, Architect: Over thirty-two years of architectural design and construction administration experience with all building types, including educational, medical, R&D, corporate, commercial, custom residential, multi-family housing, military and industrial projects, totaling over 12.4 million square feet. Emphasizing use of durable, low maintenance materials including stainless, copper, bronze, zinc, cement-fiber, plastics, composites, specialty sealants & industrial paints.

    Building Reconstruction Specialist: Reconstruction design, details and specifications focused on solving complex construction problems and developing effective repairs for commercial and institutional buildings. Services include design for waterproofing, flashing, exterior finishes, roofs, decks, windows, and remediation of mold, wood rot, corrosion and structural damage.

    Construction Industry Expert: Visual inspection, intrusive testing, defect analysis, repair recommendations and forensic expert services for both plaintiff and defense parties. Specialized knowledge of construction materials, industry standards, code compliance, waterproofing, vapor transmission, exterior finishes, corrosion, condensation, ventilation, mold, wood rot, suspended ceilings, interior partitions, and structural issues.
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