Thursday, September 29, 2011

When power washing siding is acceptable - The Boston Globe

When power washing siding is acceptable - The Boston Globe

From Boston Globe - Real Estate section: HANDYMAN ON CALL By Peter Hotton


Q. I am seeing neighbors power washing their vinyl and/or aluminum siding. I read somewhere that it is not good to do that with vinyl or aluminum, because water that gets behind the siding is likely to stay there a long time, causing decay. Is it OK to power wash painted or stained shingles?

A. In a word, yes to the last question. And that someone you read “somewhere’’ is me. I have been chattering about that for some time, and it is true. However, some professionals will reduce the pressure and aim the flow of water downward, where there is less chance of getting water behind the siding. In fact, it was a professional in New Orleans who told me about reduction of pressure and care in aiming the water.

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