December, 2011
News in Brief
Inspection News and Views from the American Society of Home Inspectors

LEEDing with Ventilation for Healthier Homes


Given the importance of fresh air to healthy indoor environments, the Healthy House Instituteā„¢ (HHI) and Home Ventilating Institute (HVI) are working together to call public attention to the home ventilation requirements of the U.S. Green Building Council's (USGBC's) LEED for Homes Rating System. The collaboration, starting in Fall 2011, will include HVI articles published on the HHI website, joint press highlighting the LEED requirements for home ventilation, and other outreach including e-learning initiatives.

The Healthy House Institute (HHI) provides consumers information to make their homes healthier. HHI strives to be the most comprehensive educational resource available for creating healthier homes, covering in-depth topics such as air and water quality, building, remodeling and furnishing, cleaning and housekeeping, health and safety, ventilation, lighting, energy efficiency and more. Visit the website at

The Home Ventilating Institute (HVI), founded in 1955, is a nonprofit association of the manufacturers of home ventilating products. Through a Certified Ratings Program, HVI provides a voluntary means for residential ventilation manufacturers to report comparable and creditable product performance information based on uniformly applied testing standards and procedures performed by independent laboratories. Visit the website at

Institute of Business & Home Safety researchers are creating hailstones in a controlled setting at S.C. lab

IBHS will be conducting tests using both existing methods and comparing those results to in-house methods, to see how the damage differs and to identify improvements that will produce a closer match with field observations. For more information about IBHS hail resources, visit the Hail Section of

Source: IBHS Research Center Report; Disaster Safety Review (2011) online Hail Research Program Update.

Code-Approved Tile Installation Manuals and Installation Training now Available From Tile Roofing Institute

Manual-based training to be held at InspectionWorld January 4

The Certified Installer Course to be presented January 4 at InspectionWorld is based on the recently released Concrete and Clay Tile Installation Manual for Moderate Climate Regions. TRI and Western States Roofing Contractors Association (WSRCA) jointly produced the installation manual. The formal evaluation report, ICC-ESR 2015, and the manual can be viewed online from the TRI website.

Installation manuals for clay and concrete roof tiles now are available online. The manuals produced by the Tile Roofing Institute (TRI) are written for Moderate Climates, Cold and Snow Regions, and High Wind Installations. You can download the manuals for free or order the printed, spiral-bound version online at

In an effort to continually improve product quality, establish the best practices in the field and keep up with innovative new products, our members work closely and proactively with organizations such as ICC-ES, the Western States Roofing Contractors Association and the Florida Roofing Contractors Association.

For example, the new Concrete and Clay Tile Installation Manual for Moderate Climate Regions includes a requirement (Page 13) for cool/humid climates. Horizontal battens must be elevated to ensure air/moisture movement under the tile. This will help extend the life of the roof system in Western Washington, Oregon and other areas deemed cool/humid by the local building inspector.

Tile is a more complex product to describe and inspect because of the wide variety of shapes and acceptable installation practices. Common practices of installers in one part of the country can be very different from others due to the climate conditions with which the roof will be faced. The manual has technical requirements for various pitches, profiles and wind conditions in numerous tables. Drawings show the various flashing options and requirements for flashings.
The TRI member manufacturers have adopted the Moderate Climate Guide as the standard, giving installers, inspectors and designers a common source from which to work.