All of our information is sourced from manufacturer data.
Versico Roofing Systems
VapAir Seal MD
Vapor Retarder (Class I)
Ceiling, Sloped Roof, Wall
Standard Sizes: 3' 6-1/2"
Standard Sizes: 10' 11-3/16"
Standard Sizes: 0"
Manufacturer Design Notes
No primer is required on metal substrates prior to adhering the VapAir Seal MD.
Roll Tensile Strength
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
Film Tensile Strength
Pressure required to break the film
Rate of airflow through the barrier per square foot at a specified pressure difference
cfm /ft^2 @ 1.57 psf
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