Can you use tar paper on walls?

Can you use tar paper on walls? A: Tar paper has been used under roofing for years to help keep wood dry. It does the same thing on walls if given the chance. I’ve had the pleasure to tear apart many an old exterior wall. On just about every one that was wood-framed, I came across tar paper under the exterior siding material.

A: Tar paper has been used under roofing for years to help keep wood dry. It does the same thing on walls if given the chance. I’ve had the pleasure to tear apart many an old exterior wall. On just about every one that was wood-framed, I came across tar paper under the exterior siding material.