Why shouldn I use chlorine bleach on asphalt shingles and wood?
Chlorine as a cleaning compound is harmful to the environment including shrubs, grass and other plant life. Chlorine requires multi-applications as well as tarping shrubs and the use of high pressure to rinse. Chlorine breaks down the fibers in wood and also leaves behind a residue that prevents proper bonding of protectants and sealants shortening the life of the protectant.
