Fox I donnot do alot about roof cleaning but will point you two knowledgeable guys I would contact Don from all season exterior or Greg from splash and dash they both showd me few thing about roof washing what size 12v pump to use cleaning roof.
This is an add cut from a big dealer of most of the big PW brands. How come they recommend pressure cleaning on roofs? How many of you prefer and clean tile roofs only with hot pressure water instead of low pressure chemical treatment?
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Reason being is that most PW dealers are ignorant of the proper methods. Also, how would it benefit them to advocate non pressure cleaning? This way they can try and sell different sized surface cleaners.
A company claiming to have 20 years experience cleaning roofs was cleaning a roof 2 doors down from my customer. I showed up 30 minutes after him. He had 2 guys. I was solo. Finished before him and did another across the neighborhood before they were done. My customer met me at the door with this statement! "that guy said he would clean the roof for 150. (approximately 3000 sq ft home) I did hers chemically for 250. It was perfect! As I descended the ladder over the garage, I saw a red river of tile roof sediment in the street drain. I walked her across the river full of her neighbors roof sediment and she said, "what's that?" I said "that is 3-5 years of your neighbor's roof. Needless to say they are professional pressure cleaners. Can we drop this question on this forum. These pressure cleaners are nuts and insurance companies are gonna catch up to this soon.
Someone please pm me directions on how to post pics of the red tile river!
I have washed hundreds upon hundreds of Tile Roofs with a surface cleaner and a wand until I learned about chemically treating the Roofs using no pressure. No pressure is the way to go. It saves the life of the roof, avoids damage to tiles and to the underlay (water intrusion), it lasts a whole lot longer than traditional power washing and the number 1 reason from a contractors stand point. It saves our backs and is much quicker.
Probably need to resize them with an image host like www.photobucket.com or something like that....Can't upload a pic. says upload failed
Hey Chris,
I already got the Delavan Fatboy from Bob's store, but was curious since the actual dealer advertises roof PW, what the roof gurus here would say.