All of our information is sourced from manufacturer data.
WRB (Weather/Water Resistant Barrier)
Sloped Roof, Wall
Standard Sizes: 4", 6", 9", 1' 0", 1' 4", 1' 6", 1' 8", 2' 0", 3' 2-1/2"
Standard Sizes: 6' 3"
Standard Sizes: 0"
Manufacturer Design Notes
All surfaces to which AIR-SHIELD is to be applied must be addressed with MEL-PRIME™ or MEL-PRIME W/B adhesive from W. R. MEADOWS. MEL-PRIME may be applied to an area that is to be covered on the same day.
Rate of airflow through the barrier per square foot at a specified pressure difference
Product Weight Per Area
Water Vapor Transmission
An imperial perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury
Weight needed to break the roll, per inch of width
lbs / in
Minimum Application Temperature
Minimum temperature that the product can be applied or installed
Air Barrier Association Of America
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