drywall Articles

  • Chinese / Corrosive Drywall Update

    A lot has happened in the field of Chinese (aka corrosive) drywall syndrome since this subject has surfaced. As we learn more about the conditions present in Chinese drywall affected buildings and have better understood the extent of change affecting materials within these buildings, our opinions on how to test for Chinese drywall and how to affect repairs have also evolved with this new ...

  • Got Chinese drywall?

    Step By Step Environmental Assessments, a leading environmental inspection company in Florida, was one of the first companies, in early 2008, in South Florida to CORRECTLY identify Chinese Drywall, during assessments for builders and residences in North Florida. As such, we have been consulted by attorneys and consumers, as well as leading laboratories, looking to better understand the causes and ...

  • Pros & Cons of Remediation Structures with Chinese Drywall

    Mr. Mulholland addresses pros and cons of the four main approaches to remediation of structures with Defective (Chinese) Drywall. There are many methods or approaches to remediation practices in the construction industry. The current crisis with defective Chinese drywall that is diffusing low levels of sulfur compounds like hydrogen sulfide, carbonyl sulfide, carbon disulfide and others creates a ...

  • Predicting Fire Resistance Performance of Drywall Construction Exposed to Parametric Design Fires — A Review

    This paper describes validation of a cumulative radiant energy method for predicting the time to failure of non load-bearing drywall construction exposed to realistic parametric fires. The validation uses full-scale compartment fire tests and analytical calculations. Three compartment fire tests are carried out in a room 3.6m by 2.4m with different arrangements of fuel load and ventilation, with ...


    By SAGE Publications

  • BESI’s Training for Defective (Chinese) Drywall Is Now A Registered Course for Recertification (RC) Credits with ACAC

    The Building Envelope Science Institute’s received recertification credits (RCs) from the American Council for Accredited Certification (ACAC) for its National Training & Certification Seminar on “Chinese” or Defective Drywall in America being held in Fort Lauderdale, Florida on October 26-27, 2010.   The institute recognizes the importance of providing proper training ...

  • On-site elemental analysis of drywall with the Thermo Scientific Niton XL3t series XRF analyzer

    Application Reports of headaches, nosebleeds, central nervous system disorders, and other serious health effects have been reported from those exposed to compounds emitted from Chinese drywall (CDW). Additionally, surface corrosion of metal objects, including jewelry, decorative plumbing fixtures, HVAC coils, and electrical wires have resulted in cosmetic and mechanical damages. These ...

  • Handheld XRF analyzer, X-MET7000, for rapid, non-destructive Drywall testing – New application note from Oxford Instruments

    The handheld XRF analyzer - X-MET7000 - offers a rapid and non-destructive solution for screening of tainted and potentially hazardous Chinese drywall and for lead inspection. At the height of the U.S. housing boom, when building materials were in short supply, American construction companies used millions of pounds of imported drywall ...


    By Oxford Instruments plc

  • Wallboard goes green as firms recycle gypsum

    Gypsum wallboard — the ubiquitous material found in homes, offices and other buildings — is finding new life when recycled as a soil additive, especially for farm crops. Rather than seeing wallboard being dumped in landfills, companies such as Quality Soil Amendments (QSA) in California and Agri Marketing, Inc., in Pennsylvania have built successful businesses recycling drywall, then reselling ...

  • Surface Decontamination of Asbestos by DeconGel 1101

    Abstract Determine the surface decontamination efficacy of DeconGelTM 1101 on linoleum tile, painted drywall and concrete surfaces contaminated with Asbestos fibers (Chrysotile fibers) was performed with Transmission Electron Microscopy (TEM; ASTM Standard Test Method: D6480- 05) and Polarized Light Microscopy (PLM; EPA approved method for analysis of asbestos from bulk samples). ...


    By METIS Scientific

  • A New T-equivalent Method for Fire Rated Wall Constructions using Cumulative Radiation Energy

    Recent tests have shown that some wall and door constructions, when exposed to temperature conditions greater than those used for the standard ISO 834 test, fail in lesser time than their standard time rating. The premature failures that occur have been known for some time but specific tests have been conducted only recently to demonstrate the facts. It has been widely-accepted since the late ...


    By SAGE Publications

  • Mold Prevention Training

    Mold –It’s All About Water! How is mold controlled on a construction project? By controlling water intrusion – that’s the answer! Mold has been around for a long time, and has always been a challenge on construction projects. However, with new construction materials being even more mold susceptible, and record-breaking lawsuits for exposure to mold growing, it is now more important than ever ...

  • Mold Remediation Guidance For Indoor Environment

    Remediation contractors are generally very conscientious, trying hard to bring each project to a condition where it will pass “clearance  testing” (the  Post-Remediation  Verification  [PRV] inspection) on the first try. Sometimes the cleaning attempts are unsuccessful. This will certainly cost the contractor additional cleaning ...

  • News on Air 2013, Volume 1: Products for Sampling

    For decades, Sigma-Aldrich has been a key supplier of innovative & high technology air monitoring products for various areas of gas/air sampling. Enclosed, you will find an overview on new and interesting devices to improve or simplify your air sampling. Supelco and Sigma-Aldrich offer a range of active and passive air sampling products, in addition to various analytical chemistry tools ...


    By Sigma-Aldrich Co., LLC

  • Learner - centered viewpoint case study

    Making the case for pre-manufactured interior partitions is a challenging task, especially when stakeholders have a limited viewpoint. In 2006, leaders of the Ottawa Regional Supporters Association of Architects Supporters group studied the advantages, limitations and first costs of various types of interior commercial partitions (drywall, demountable, operable and mobile; with an ...

  • Construction Waste Recycling

    Construction Waste Recycling,Construction Waste Plant | Machine Construction waste recycling and demolition materials produced at a construction location are increasingly significant. The environmental advantage of recycling can be considerable. A great deal of this energy savings result from reduced utilization of natural ...


  • Lead safety for renovation - New EPA training requirements

    The Lead Based-Paint Renovation, Repair, and Painting (RR&P) rule became effective June 23, 2008 and will be fully implemented on July 22, 2010. This rule is a federal regulatory program that applies to all renovations performed for compensation in target housing and child occupied facilities constructed before 1978. The RR&P rule includes pre-renovation requirements, as well as training, ...


    By The EI Group, Inc.

  • United States Virgin Islands

    Our firm was privileged to perform an indoor air quality related abatement that also had a historical context. This involved an adverse exposure to the Governor of the USVI at the Governor's residence in Catharineberg, St. Thomas. We determined that Stachybotrys and other toxigenic fungi were present in the residence as a result of water leaks from the roof and indirect effects from air ...


    By Indoor Air Solutions, Inc

  • Blending of would-be landfill turns out greener cement-based products

    The vision of a greener future for the construction industry motivates Andrew Dennis, an architect here who founded a company dedicated to producing environmentally friendly cement-based products. Instead of the heavy aggregates found in standard concrete, the materials made by GigaCrete Inc. include non silica based sands and byproducts of coal combustion, fly-ash and bottom-ash and recycled ...

  • Blower Door Pressure Testing, Unvented Attics and Florida Homes

    I recently traveled to theCaribbean on a building science investigation. A large multi-national corporation owns several homes there for local executives. These homes had been plagued with dampness and mold growth problems for several years.  After several attempts to correct these problems, IET was called in, as we had ...

  • Handyman`s Special!

    In January of 1998, Lou Ann and Kelvin Washington were in the market for a new home, away from their hectic jobs in Denver. They found their piece of heaven high on a hilltop in South Park, Colorado. But their new dream home came with some problems, including a power system that was not the best introduction to renewable energy. The house is 2,600 square feet (242 m2), passive solar, and ...


    By Solar Energy International

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