Just got off the phone with Thor tech support. They say the TPO manufacture says use only Dicor caulking and for cleaning the TPO roof only a mild dish washing soap like Dawn. Also he said when cleaning use either a soft rag or sponge, no brushes. FWIW I had called about my up coming solar roof install.
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2016 Axis 24.1 E-450 6 spd tranny
300 watts portable solar.
200 watts solar on the roof.
Wrangler JK dinghy
Just got off the phone with Thor tech support. They say the TPO manufacture says use only Dicor caulking and for cleaning the TPO roof only a mild dish washing soap like Dawn. Also he said when cleaning use either a soft rag or sponge, no brushes. FWIW I had called about my up coming solar roof install.
Using a sponge on the roof is going to be very time consuming. I use a medium bristled brush on a pole, helps when scrubbing the tough and dirty spots, never had a problem. The TPO roof is very durable and it would have to be very intentional to do damage. Sure Thor is being conservative.
NO WAY am I getting on my hands & knees to wash the roof with a sponge!! Spray down with Simple Green & let soak for a few minutes then scrub with a medium bristle brush & car wash soap then rinse, viola!
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Fulltimed 10+ years
Sold '13 Thor Redwood 36 FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined