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Do I Need Tyvek on Horse Barn?

terbec's Avatar
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06-22-04, 08:05 AM   #1  
Do I Need Tyvek on Horse Barn?

I'm preparing to install vinyl siding over 5/8 CDX on an unheated, uninsulated horse barn in Central Virginia. Is there any real benefit to applying tyvec or other building paper prior to installing the vinyl siding?

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06-22-04, 07:27 PM   #2  
Tyvec or other types of building paper are installed as a drainage plane, especially concerning wind driven rain. Even though the original barn siding would act as the drainage plane, this sidng will be covered by the vynal. Over a period of time the original wood siding will deteriorate because it will not be painted or stained. Any wind driven rain at this point would cause dry rot on the original siding because of the deterioration and moisture being trapped there by the vynal siding. Tyvec or any type of building paper would reduce the probability of the wood rot to the original siding dramatically.

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07-07-04, 12:52 PM   #3  
definitely wouldn't hurt, but not necessary.

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07-13-04, 02:41 PM   #4  

Tyvek won't hurt but it won't help when applied over plywood.

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