Roofing Felt Paper Behind Siding

They were built in the 1950s and 60s the felt was in perfect condition.

Roofing felt paper behind siding. The homeowners immediately noticed a petroleum odor when for six years there was never a problem. I ve opened up houses built less than 5 years previous and the tyvek was shreaded like old newspaper. But because the vinyl siding covers the felt paper it is shielded from the sun and never gets hotter than the temperature of the siding from solar gain. Fiber cement siding covered the felt paper.

Nowadays low cost 15 felt can weight as little as 8 to 12 pounds per square 100 sq. Our house was built about seven years ago. This is a good thing. Should any water get past the siding properly installed felt paper.

I ll stick with tried and true felt paper. The paper requirement is typically omitted for other types of siding when they re installed over rated structural sheathing. The standard weather barrier used traditionally under wood vinyl and other siding materials is 15 pound felt. I need to do some repairs under my siding from a window leak.

They also promote quick drying allowing air to get behind any siding. Many builders use standard 15 pound roofing felt. The siding was improperly installed and was removed in early november of 2018. The short answer is that felt paper is fine as a weather resistant barrier behind vinyl siding and will not cause a problem if the siding is installed correctly.

If you want vertical drainage with tar paper you have to add treated lumber strips on top of the tar paper. Install pieces in the correct order and make cuts carefully so any moisture can travel downward at all points without slipping under the wrap. Basically all model codes agree on the need for a weather resistant barrier paper usually specified as 15 felt or grade d kraft paper behind stucco brick stone and other porous veneers. A paul fisette director of building materials and.

For stucco the standard is two layers of grade d building paper. For example an ice dam or roof leak may allow liquid water to get behind the felt or housewrap. The siding contractor then covered the felt paper with certawrap a modern air barrier. Felt paper also commonly referred to as tar paper is an underlayment material applied to bare walls before siding is installed.

Felt or building paper must be applied to walls properly to be effective. Felt labeled astm 15 meets specific standards and is the norm in many areas. Tar paper does not offer this. I have seen literally hundreds of houses stripped of asbestos siding that had 15 felt under it.