Is a vented rainscreen needed for fiber-cement shingles in DC?
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I’m looking at a residing project in Washington DC in which the existing wood lap siding is to be covered in fiber-cement shingles. The house was built in 1923 and the plaster walls have blown-in cellulose.
How crucial is it that a vented rainscreen be used? The additional cost is the issue. Housewrap is planned.
Thanks,
Rick
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Replies
Rick,
When you install shingles over existing lap sizing, you already have some air gaps between the layers. I imagine that your siding will dry quickly without a rainscreen installation.
Thanks, Martin!
I had some notions along that line of thinking but wanted an expert opinion.
Rick
Martin-
Same thoughts if going with cedar shingles? They'd likely be dipped in stain/sealer thus backprimed.
Thanks,
Rick
Rick,
Yes.
I appreciate your thoughts!