All of our information is sourced from manufacturer data.
WRB (Weather/Water Resistant Barrier)
Sloped Roof, Wall
Concrete, Wood Sheathing
Standard Sizes: 4' 11"
Standard Sizes: 13' 8"
Water Vapor Transmission
An imperial perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury
Roll Tensile Strength
Weight needed to break the roll, per inch of width
lbs / in
Product Weight Per Area
lb / ft ^ 2
Minimum Temperature Rating
The lowest temperature that the product has been confirmed to still function at.
Rate of airflow through the barrier per square foot at a specified pressure difference
cfm /ft^2 @ 1.57 psf
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