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TOPIC: Painting/Coating metal roofs

Sap on metal roof

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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?
Guest User

4/12/2004
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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.
Allan Reid
Dura-Loc Roofing Systems, Inc.

4/13/2004
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