Paper Under Siding

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

Paper under siding.

Its primary purpose is to prevent air and water leaks that may have seeped past the vinyl exterior. How to do it install bottom piece. 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. Vinyl siding can be installed directly over wall sheathing wood siding or stucco.

It is an age old choice as a weather barrier under roofing and siding. How to get rid of wasps under siding written by shermaine williams on dec 30 2009. 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. 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. 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. By doing so however you miss out on the opportunity to add add energy savings to the project.

I ll stick with tried and true felt paper. On walls it has been eclipsed in new construction by various brands of house wrap a woven or spun bonded plastic. The standard weather barrier used traditionally under wood vinyl and other siding materials is 15 pound felt. I have seen literally hundreds of houses stripped of asbestos siding that had 15 felt under it.

Drive staples and trim. Why do homes need house wrap. Position the successive panels. 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.

Siding applied directly over tar paper creates a sandwich effect and can trap water between the siding material and the tar paper. They were built in the 1950s and 60s the felt was in perfect condition. For stucco the standard is two layers of grade d building paper. 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.

Nowadays low cost 15 felt can weight as little as 8 to 12 pounds per square 100 sq. If you want vertical drainage with tar paper you have to add treated lumber strips on top of the tar paper. If you will be attaching.