National Roofing Contractors Association
An association of roofing, roof deck, and waterproofing contractors; industry-related associate members; and international members worldwide.
NRCA's Web site is a comprehensive resource of roofing industry information. The site provides customized roofing information for each audience: NRCA members, consumers and professional roofers.
Single-Ply Roofing Institute
The class of commercial roofing membranes commonly described as "single-ply" are flexible sheets of compounded synthetic materials that are manufactured in a factory to strict quality control requirements.
EPDM Roofing Association
Building Design and Construction magazine and the National Roofing Contractors Association (NRCA) confirmed in their 2002-2003 market surveys that EPDM continues to be the number one roofing choice of architects, roof consultants and contractors.
Asphalt Roofing Manufacturers Association
ARMA - the official site of asphalt roofing in North America. All information about residential and commercial Asphalt Roofing.
Northeast Roofing Contractors Association (NERCA)
This site is for roofing contractors as well as architects, engineers, consultants, manufacturers, distributors, owners, developers, and general contractors. NERCA represents the premier roofing professionals in Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, and Vermont.