All of our information is sourced from manufacturer data.
Vapor Retarder (Class I)
Fluid or Spray Applied
Ceiling, Sloped Roof, Wall
Weight needed to break the roll, per inch of width
Water Vapor Transmission
An imperial perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury
Product Weight Per Area
lb / ft ^ 2
Minimum Application Temperature
Minimum temperature that the product can be applied or installed
Rate of airflow through the barrier per square foot at a specified pressure difference
cfm /ft^2 @ 1.57 psf
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