Provides effective protection against the influx of hot air (with high water vapor content) from the interior of the building to a covered, two-layer, non-ventilated enclosure
For greater efficiency and durability of Sandwich Systems, a study needs to be done to verify the possibility of condensation. If necessary, the vapor barrier system must be adopted.
The Carlisle Vapor barrier is 40mil thick, and 35mil is composed of self-adhering asphalt laminate and 05 mil polypropylene fabric film.
A silicone coating prevents the material from sticking to itself in the roller and is easy to remove during installation.
It is available in rolls of 244', with dimensions of 39" x 75', the thickness being controlled by the factory, which guarantees uniform barrier properties in the construction.
The woven polypropylene film increases strength and has a non-slip surface suitable for attachment of subsequent layers.
