NRCA offers asphalt shingle guidelines

National Roofing Contractors Association Guidelines for Asphalt Shingle Roof Systems offers best practice guidelines for the design, materials, and application of asphalt shingle roof systems.
Sept. 17, 2012

National Roofing Contractors Association Guidelines for Asphalt Shingle Roof Systems offers best practice guidelines for the design, materials, and application of asphalt shingle roof systems. The publication contains information about roof decks, underlayments, asphalt shingles, construction details, and attic ventilation.

Read more

Sign up for Pro Builder Newsletters
Get the latest news and updates.