Don't seal cedar
To the real estate editor: In your column of March 21 you recommended a latex stain with "film integrity." I have seen cedar dry-rot whenever it was sealed so I would guess that a film would not be wanted.Skip to next paragraph
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In the same column there was an inquiry about insulating a flagstone fireplace which was built in an exterior wall. One solution is to spray a foam on the outside surface. I have done it in such a manner that the foam resembled the existing surface, either rock or flagstone.
The foam can be painted to resemble the original appearance. Charles Qualle Fairbanks, Alaska