The NRCA Leadership and Workforce Development Catalog now is available for download.

New IBC Rules for Insulation

To obtain a copy of a specific publication, users should contact the publication's publisher directly.

Abstract
Low-slope and Steep-slope unvented roof systems (I.E. insulations and air barrier are applied directly to the underside of the roof deck) are common in applications where designers are seeing cost-effective and energy-efficient roof assemblies. However, architects of these "compact" roof assemblies must consider vapor permeance and arrangement of the materials to produce acceptable hygrothermal performance and low risk of condensation in the resulting conditioned attic space.
Date
6/2020
Author(s)
Anthony Nicastro & Megan Toumanios
Page(s)
18-23
Keyword(s)
vapor; retarder; panels; sprayfoam; attic; space; coating


Note: Documents in this section are provided as Adobe Acrobat PDF files. In order to print and view PDF files, the Adobe Acrobat Reader software/plugin, which runs on Microsoft Windows, Macintosh, OS/2 and various versions of UNIX, must be installed on your computer. Adobe Acrobat Reader is available for download as freeware from Adobe Acrobat's website. Please note that the resolution of on-screen versions is not as high as printed versions of PDF files.

Advertisement

Subscribe for Updates Join 25,000+ roofing professionals following NRCA

Subscribe to NRCA