Guest User
What can I use to spray on a painted aluminum roof to lift tree sap or loosen it enough to spray clean with a pressure washer?
Allan Reid
Dura-Loc Roofing Systems, Inc.
Try a mixture of TSP (trisodiumphosphate) and Sunlight dish soap and if there is any moss add a little chlorine in. Apply with low pressure, let sit and then scrub with a soft bristle brush (A long handle boat brush works best). You may need a few applications and then rinse.
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