Felt Paper Under Cedar Siding

Nowadays low cost 15 felt can weight as little as 8 to 12 pounds per square 100 sq.

Felt paper under cedar siding.

Above was my post to demon now there are people here who say you can t use tyvek under cedar because of the tanins in the cedar will eat away at the tyvek. They were built in the 1950s and 60s the felt was in perfect condition. Should any water get past the siding properly installed felt paper. Consequently a high quality house wrap like barricade building wrap saves money and time over asphalt felt paper by reducing the need for repairs during the construction process.

I ve opened up houses built less than 5 years previous and the tyvek was shreaded like old newspaper. I ll stick with tried and true felt paper. A continuous felt not plastic wrb is all that s required. On a sidewall installation with cedar shingles sawn not split like shakes over solid sheathing interwoven felt is unnecessary as long as joints are offset at least one inch laterally.

This underlayment is an important line of defense against moisture penetration. It is an age old choice as a weather barrier under roofing and siding. Cedar shakes tend to be on the expensive side compared to asphalt shingles or concrete tile. Tar paper also known as building felt is tar impregnated paper.

I have seen literally hundreds of houses stripped of asbestos siding that had 15 felt under it. On walls it has been eclipsed in new construction by various brands of house wrap a woven or spun bonded plastic. First off let s have a look at the drawbacks of cedar roofing since there are so few. In fact many builders disagree on the effectiveness of house wraps altogether and while some builders will only install 15 pound asphalt saturated felt paper underneath exterior siding others swear by plastic fabric house wraps such as typar or tyvek.

For stucco the standard is two layers of grade d building paper. They also require maintenance on a more frequent basis but nothing too drastic. Skip sheathing strapping is not amenable to continuous underlayment.