Algae discoloration of roofs (Bulletin 217-RR-89 Rev 5/07)

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Abstract
Roof discoloration caused by aglae has been observed thorughout the United States and Canada. This is commonly referred to as "fungus growth."

Date
5/2007

Author(s)
ARMA Bulletin

Page(s)
1

Source
ARMA / Asphalt Roofing Manufacturers Association

Keyword(s)
algae; shingle discoloration

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