Fiberglass Asphalt Roofing
Fiberglass asphalt roofing is considerable new innovation, replacing wood fibers, cellulose, and felt.
As a product group, asphalt roof shingles are in fact the most common roof covering that is used on residential properties in North America today.
The modern fiberglass asphalt shingles are made much in contrast to the early shingles.
The early shingles were made by saturating rag-felts with asphalt and by coating each side of the saturated felt with an asphalt-mineral filler-coat, then covering the top surface of the shingle with mineral granules and coating the bottom surface to prevent shingles from sticking together in storage.
This early method using felt mat was replaced in the 1940's by a zero rag-content of wood fibers and cellulose.
The most recent, and currently most popular innovation has been by the manufacturers to produce shingles using a fiberglass core that replaces the felt.
The transformation to fiberglass core/mat was done to provide good tear resistance, better fire resistance, and to provide generally thinner core than what the older shingles provided.
The new shingles using fiberglass also use less asphalt, which makes them more economically advantageous for both the manufacturer and the roofing installer.
The roofing installer also benefits from having a lighter material to work with, as it is easier to install.
From Fiberglass Asphalt Roofing page to Asphalt Guide index