The National Association of Home Builders on Wednesday issued a white paper on remediation of defective Chinese Drywall.
The report, available at www.nahb.org/drywallguidelines, addresses methods of detection and the permanent solution of problems related to the defective drywall, which is known to emit corrosive gasses that affect not only health but the wiring and mechanical systems that it encloses.
"The downstream effects of these problems include widespread property damage, huge financial losses, hundreds of lawsuits, and legitimate concerns about possible health effects from living with these unpleasant airborne compounds," said NAHB First Vice Chairman Barry Rutenberg. "In a landscape cluttered with untested products, devices and procedures purported to resolve drywall problems, NAHB based these guidelines on scientifically proven technologies, materials, means and methods for remediating drywall problems in single-family homes, condominiums, apartments and townhomes."
According to NAHB, among the recommendations contained in the report are:
* Replace all low-voltage, signal and data wiring; all switchesand receptacles; and all smoke, fire and carbon monoxide alarms and life-safety systems. This reiterates interim remediation guidance issued by a Federal Interagency Task Force on this issue last year.
* If the home was built between 2001 and 2008 and it has beenconfirmed that problematic drywall is present throughout the entire home, total remediation is the only viable option. Selective remediation is an option if problem drywall is found in a limited portion of the home that can be isolated.
* To determine whether the remediation has been adequate, conductclearance testing after the drywall has been removed and the house has been cleaned and aired out but before the drywall is replaced.
Accessing the report requires agreement with a set of policies, one of which is that the report may not be reproduced in any form without the consent of NAHB.