Paper Under Siding

This underlayment is an important line of defense against moisture penetration.

Paper under siding.

I have seen literally hundreds of houses stripped of asbestos siding that had 15 felt under it. Position the successive panels. The paper requirement is typically omitted for other types of siding when they re installed over rated structural sheathing. To sum it up house wrap is a lightweight paper like material that is most often used to completely cover the house directly on top of the sheathing and behind the vinyl siding.

To ensure our content is always up to date with current information best practices and professional advice articles are routinely reviewed by industry experts with years of hands on experience. Drive plenty of staples especially if it is windy in your area. 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. Drive staples and trim.

Vinyl siding can be installed directly over wall sheathing wood siding or stucco. They were built in the 1950s and 60s the felt was in perfect condition. I ll stick with tried and true felt paper. Working with a helper install the bottom piece of felt so it extends 1 or 2 inches below the sill.

On walls it has been eclipsed in new construction by various brands of house wrap a woven or spun bonded plastic. It is an age old choice as a weather barrier under roofing and siding. By doing so however you miss out on the opportunity to add add energy savings to the project. Tar paper does not offer this.

Tar paper also known as building felt is tar impregnated paper. This is a time intensive process and requires all sorts of skill. I ve opened up houses built less than 5 years previous and the tyvek was shreaded like old newspaper. If you want vertical drainage with tar paper you have to add treated lumber strips on top of the tar paper.

Its primary purpose is to prevent air and water leaks that may have seeped past the vinyl exterior. Siding applied directly over tar paper creates a sandwich effect and can trap water between the siding material and the tar paper. The standard weather barrier used traditionally under wood vinyl and other siding materials is 15 pound felt. Why do homes need house wrap.

Nowadays low cost 15 felt can weight as little as 8 to 12 pounds per square 100 sq. For stucco the standard is two layers of grade d building paper. How to do it install bottom piece.