Chad, I just watched your video. Good one!
Thanks Ted. I did it all by myself lol.
Chad, I just watched your video. Good one!
Using and leaving a chemical on the granules that turns to a salt does what ? What are the effects if it doesn't rain for 5 days ?The longer it doesn't rain what's happening? How much degradation has been caused ? Is it better to rinse off the chemical ? How much pressure can be used to rinse ?Those are the questions I asked myself and then talked to the people who make chemicals and materials. I rinse with a 8 and 7 gallon a minute and low pressure . I charge more and it takes longer and usually get the more difficult jobs because of the results . I take care of a few properties every year for the last 20 where I use hot water and rinse the roof off in late fall . Blow off with blower first . Clean debris behind skylights rinse all dirt off roof . Very large properties . Before this maintenance plan the houses had some major issues and moss build up and leaks . A little pressure works wonders with hot water. I also just did a high pressure clean for a re- roofing . Putting a new course over the existing shingles ( severe moss ).Done a few of these in the past one with a turbo nozzle .
Where are these roofs that have been bleached multiple times? A properly treated roof will only ever need to be treated once in it's life time. Maybe twice under severe circumstances.After talking to chemists who make bleach , chemical suppliers, and ARMA who recommends rinsing . More damage is done by leaving the salts behind drying out the granules . This is why I rinse . All lichen produce bald spots.
Have you every walked on a roof that been bleached a few times ? It's very dangerous because the granules are all loose .
Where are these roofs that have been bleached multiple times? A properly treated roof will only ever need to be treated once in it's life time. Maybe twice under severe circumstances.