The entry of fiberglass-reinforced shingles into the marketplace has brought benefits for makers of roofing materials and homeowners, said Bill Boeschenstein, former president, CEO and chairman of Owens Corning. Owens Corning started to produce its fiberglass mat shingles even while the roofing industry supported wood fiber composite mats. "The thing is, [fiberglass] was inert to weather and the other material, [wood composite,] if you had a break in the asphalt component, which you normally would have at some point in any roofing product, the wood fiber-based material would rot and ultimately cause problems," said Boeschenstein.

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