Jeff
I just went through this last week and I got 2 different answers from NH DOT and Massachusetts DOT. So I actually drove my van to the 2 different weight stations, empty of course. NH Dot says water is not a factor but they count anything that has a MSDS sheet,(SH,Soap,Surfactant, and Gas)...
This home in Tewksbury Ma, 01876 had black stains and black streaks on it. The homeowner contacted us at Brian C. Jackson and we did a safe non-pressure roof cleaning. This not only cleaned the roof of all the algae but it helped extend the life of the roof by stopping the algae feeding on the roof.
Roof Cleaning In Andover Mass, 01810 was done by Brian C. Jackson. This roof had ugly black stains & black streaks that is the algae which is feeding on the shingle and shortening the life of the roof. This roof was in need of a roof cleaner to perform a non-pressure roof cleaning to rid this...
Wanted to drop in and say hello. I'm Brian C. Jackson from Pelham, New Hampshire. I looking forward to posting an contributing to this forum and also learning.