For over 60 years, LL Building Products (a GAF company) has delivered a broad range of quality products, services and expertise to the building materials, HVAC, and door hardware industries. Our nationwide network of retailers and wholesalers makes our products widely available and easy to find.
Our products include:
- Master Flow® Ductwork...
A comprehensive selection including pipe, elbows, fittings and insulated flexible duct, as well as innovations such as our Seamless Drain Pans, Platforms, and Versa Caps.
- Master Flow® Ventilation...
A complete assortment of Power Vents, Static Vents, Ridge Vents, Whole House Fans and Chimney Caps.
- Village Ironsmith™ Ornamental Iron...
Includes different styles of easy to install rails for a homeowner’s ornamental needs.
Non-Woven Fabrics
In 1978, GAF-Elk began production of fiberglass nonwovens in our Ennis, Texas facility. While Ultra-Mat® was originally developed specifically for the roofing industry, GAF-Elk has expanded its capabilities and capacity. Included are sales to other shingle manufacturers and development and sales of both fiberglass and polyester mat for a variety of non-roofing markets. In 1987, GAF-Elk formed the Nonwoven Materials Group to further expand and diversify GAF-Elk's market presence and product capability.
Today, GAF-Elk enjoys a solid presence and leadership position in the development and production of both polyester nonwoven products and wet-laid industrial fiberglass!
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GAF Materials Corporation has grown to become North America’s largest manufacturer of residential roofing (sold under the GAF-Elk brand) and commercial 
