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Title
Algae "dirt" comes to light in contest
Algae "dirt" comes to light in contest
Date
8/1997
8/1997
Author(s)
Editor
Editor
Page(s)
29-31
29-31
Source
Roofer Magazine / D & H Pub
Roofer Magazine / D & H Pub
Keyword(s)
algae; algae resistant shingle; dirt; black streak; 3M contest; copper granules
algae; algae resistant shingle; dirt; black streak; 3M contest; copper granules
Abstract
Finding the nations "dirtiest roof" was easy for a roof consultant holding a masters degree in biology - the dirt is actually algae. 3M' nationwide contest sought the most severe "roof algae" in the country to promote awareness of the problems and what can be done to deter its onset.
Finding the nations "dirtiest roof" was easy for a roof consultant holding a masters degree in biology - the dirt is actually algae. 3M' nationwide contest sought the most severe "roof algae" in the country to promote awareness of the problems and what can be done to deter its onset.