Dear Jerry: Our house was recently painted, and the contractor told us that the roof shingles on the north side have mold that should be removed. The house was built in 1966 and has the third roof on ...
Q. I have a 10-foot-by-12-foot tool shed in a shady area with a roof covered with unsightly lichen. Can you suggest any relatively simple way to remove it before I paint the shed? A. Ah, yes, lichen ...
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