Originally Posted by Karvonen's Pro Clean
I recently looked at a website that claimed in addition to algae that jet exhaust also caused roof stains.I have heard this in the past and laughed about it since there is so much science out there that clearly points to algae.Has anyone else ever heard this?
Well, I have heard plenty of claims about what causes a "dirty" roof, including that.
One web site says we should scare people with the Bird Flu if they do not clean their roof!
We clean roofs here in the Tampa area, and have noticed that the Tampa Electric Smokestacks do drop coal soot on the roofs!
There are quite a lot of white tile roofs in the fallout zone of these smokestacks.
For them, we find it helpful to add some Sodium Hydroxide to our Chlorine/TSP/Water mix.
I agree with Don's post, I have never seen jet exhaust, and clean plenty of homes near Tampa International Airport.
Now, bird droppings ...
are another matter .... kinda makes the tiles real slick