Paper Under Siding

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

Paper under siding.

Siding applied directly over tar paper creates a sandwich effect and can trap water between the siding material and the tar paper. I have seen literally hundreds of houses stripped of asbestos siding that had 15 felt under it. They were built in the 1950s and 60s the felt was in perfect condition. Tar paper does not offer this.

For stucco the standard is two layers of grade d building paper. Its primary purpose is to prevent air and water leaks that may have seeped past the vinyl exterior. Drive staples and trim. By doing so however you miss out on the opportunity to add add energy savings to the project.

If you want vertical drainage with tar paper you have to add treated lumber strips on top of the tar paper. The standard weather barrier used traditionally under wood vinyl and other siding materials is 15 pound felt. This is a time intensive process and requires all sorts of skill. Working with a helper install the bottom piece of felt so it extends 1 or 2 inches below the sill.

Tar paper also known as building felt is tar impregnated paper. I ve opened up houses built less than 5 years previous and the tyvek was shreaded like old newspaper. 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. Nowadays low cost 15 felt can weight as little as 8 to 12 pounds per square 100 sq.

How to do it install bottom piece. If you will be attaching. Position the successive panels. 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.

It is an age old choice as a weather barrier under roofing and siding. Vinyl siding can be installed directly over wall sheathing wood siding or stucco. I ll stick with tried and true felt paper. Why do homes need house wrap.

How to get rid of wasps under siding written by shermaine williams on dec 30 2009. 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 plenty of staples especially if it is windy in your area.