Underlayment for Wood Roofing
Cedar Shake & Shingle Bureau
4 Recommended Methods of Installation on Solid Sheathing
1.
Use treated shakes or shingles directly
2.
Apply horizontal furring strips, spaced at the exposure of the
product
3.
Apply vertical strips in alignment with the rafters underneath,
then use horizontal strips on top of the vertical boards
4.
Cedar Breather® from Benjamin Obdyke Incorporated
What is Cedar Breather?

Three dimensional nylon matrix

Cone shaped design

Provides ¼” air space
What is Cedar Breather?

Nylon 6
- Not affected by heat or cold
- Not affected by UV light

Class “B” fire rating
Benefits of Cedar Breather

Provides space for a continuous air flow between the
solid roof deck and the shingles or shakes

Allows underside of shingle to dry

Eliminates excess moisture

Prevents thermal cupping and warping

Reduces potential rotting and warping

Helps prevent damage to felt

50 year limited warranty
Airflow
Roof Ridge Line
Three dimensional view
¼” Air Space
Maintained
Compression & Thickness
Zero lbs. per sq. ft.
.27 inches
100 lbs. per sq. ft.
.26 inches
200 lbs. per sq. ft.
.25 inches
Moisture Testing & Results
Test Decks in Florida
With Cedar Breather installed, 17.88% less
moisture was detected than an identical deck
installed without Cedar Breather.
Independent testing done by:
PRI Labs, Tampa Florida 9/2000
Easy to Install

Lightweight – easy to carry up a ladder

No special tools – stapler or hand tack

Eliminates the need for furring strips

Jobs are finished quicker
Simple Application

Applied over roofing felt

Tacked down once every 3 sq. ft.

Edges butted together

Dimple side down

Flat side up provides
a nailing surface
Shingle Installation
Shake Installation
Valley Flashing
Summary

Cedar Breather extends the life of wood roofs

Time and labor savings for contractors

Over 10 years of proven performance
Cedar Breather Packaging

Packaged in 61.5’L X 39”W rolls

18 rolls per skid

Each roll covers 200 square feet (2 squares)