The NRCA Roofing Manual—2026 set now is available for purchase or download!

Clearing the Air

Abstract
Proper attic ventilation can be an important consideration when designing high-performing, steep-slope roof assemblies. For example, with some asphalt shingle products, proper attic ventilation may be a warranty requirement. Following is a review of code requirements and NRCA’s guidelines for attic ventilation in steep-slope roof assemblies.
Date
7/2018
Author(s)
Mark Graham
Page(s)
20-22
Source
Research+Tech
Keyword(s)
ventilating; attic; insulation; ceiling



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