Kids Library Home

Welcome to the Kids' Library!

Search for books, movies, music, magazines, and more.

Available items only
Author Grin, A. (Aaron), author.

Title Application of spray foam insulation under plywood and oriented strand board roof sheathing / prepared by A. Grin, J. Smegal, and J. Lstiburek, Building Science Corporation.

Imprint [Washington, D.C.] : U.S. Department of Energy, Energy Efficiency & Renewable Energy, Building Technologies Office, October 2013.


Location Call No. OPAC Message Status
 Axe Federal Documents Online  E 1.177:DOE/GO-102013-4257    ---  Available
Description 1 online resource (viii, 38 pages) : color illustrations
text txt rdacontent
computer c rdamedia
online resource cr rdacarrier
Note "Prepared for the National Renewable Energy Laboratory on behalf of the U.S. Department of Energy's Building America Program, Office of Energy Efficiency and Renewable Energy."
"October 2013."
"NREL technical monitor: Cheryn Metzger."
"DOE/GO-102013-4257"--Page [47].
Bibliography Includes bibliographical references (page 38).
Summary Unvented roof strategies with open cell and closed cell spray polyurethane foam insulation sprayed to the underside of roof sheathing have been used since the mid-1990's to provide durable and efficient building enclosures. However, there have been isolated moisture related incidents reported anecdotally that raise potential concerns about the overall hygrothermal performance of these systems. This project involved hygrothermal modeling of a range of rainwater leakage and field evaluations of in-service residential roofs using spray foam insulation. All of the roof assemblies modeled exhibited drying capacity to handle minor rainwater leakage. All field evaluation locations of in-service residential roofs had moisture contents well within the safe range for wood-based sheathing. Explorations of eleven in-service roof systems were completed. The exploration involved taking a sample of spray foam from the underside of the roof sheathing, exposing the sheathing, then taking a moisture content reading. All locations had moisture contents well within the safe range for wood-based sheathing. One full-roof failure was reviewed, as an industry partner was involved with replacing structurally failed roof sheathing. In this case the manufacturer's investigation report concluded that the spray foam was installed on wet OSB based on the observation that the spray foam did not adhere well to the substrate and the pore structure of the closed cell spray foam at the ccSPF/OSB interface was indicative of a wet substrate.
Funding Prepared under KNDJ-0-40337-04
Note Title from title screen (viewed on Apr. 24, 2014).
Subject Water leakage -- Analysis.
Roofs -- Moisture.
Roofs -- Thermal properties.
Insulating materials -- Moisture.
Dampness in buildings.
Dwellings -- Insulation.
Genre/Form Online resources.
Electronic books.
Electronic government information.
Added Author Smegal, Jonathan, author.
Lstiburek, Joseph W., author.
United States. Department of Energy. Building Technologies Office, issuing body.
National Renewable Energy Laboratory (U.S.), sponsoring body.
Building America (Program : U.S.), sponsoring body.
Gpo Item No. 0429-A-90 (online)
Sudoc No. E 1.177:DOE/GO-102013-4257

Available items only