cedar breather sidewall application

[btorrey]

The drainage mats Ive seen for sidewall applications are about 1/4" thick. Assuming the material would be applied similar to a housewrap it would go over the head and side flashing of a window, but under the sill flashing? Should it be applied before the windows are installed or after? Any details to simplify the application and sequencing to apply this material?

[Fred Koehler]

The product you are referring to is manufactured by Benjamin Obdyke. Over a year ago the product they use to sell for sidewall applications was called "Cedar Breather." Today they sell a product called "Rain Slicker" for sidewall applications.

I have some on my desk in front of me. It is bright yellow and is basically a nylon mesh material. It has vertical grooves formed in the material to permit a drainage space for water to drain. It also provides ventilation to permit drying.

It is my understanding you complete all of your secondary weather barrier, window / door and flashing details in normal fashion. Then the Rain Slicker goes on the side wall. It is just stapled with galv staples. All it does is provide an air space behind the siding.

Depending on the trim boards you use, you may have to go from 4/4 to 5/4 to make up that 1/4" of thickness.


Benjamin Obdyke

[Patty]

I think Fred covered the subject pretty well. We've been using the "home slicker" quite a bit lately with no problems, and have used the roof version, Cedar Breather for years.
Patty