Additional information about asphalt shingles' tear strengths

Asphalt shingle standards and compliance
Professional Roofing, May 2005
Mark Graham

Concerns with fiberglass shingles
Professional Roofing, July 1998
Mark Graham

When do shingles comply?
Professional Roofing, September 2003
Mark Graham

When does a shingle comply with ASTM D3462?
Technical Bulletin
Asphalt Roofing Manufacturers Association

Sampling Shingles for ASTM Testing—Understanding Why Proper Sampling Provides Credible Results
Technical Bulletin
Asphalt Roofing Manufacturers Association

This Web exclusive information is a supplement to Asphalt shingles' tear strengths revisited.