Subject: Lichen on roof shingles
From: [email-masked] (DAVID WILLETT)
Date: 28 Apr 1994 11:58:28 -0300
Newsgroups: bionet.plants

I have a problem with lichen growing on my asphalt roof shingles and am 
looking for a simple solution to remove the growth before physical damage 
results.
I have considered using a weak solution of Javex but I'm not sure if that's 
the answer.
If anybody has any suggestions, I would appreciate an E-Mail message to the 
following address:    WILLETTD . DAVID @ ISTC . CA