Vents and Breathers- for relief of trapped moisture in
roofing systems. Vents and Breathers are used to relieve
moisture vapor trapped within a roofing system. Moisture
may have entered the system due to drying of lightweight
insulating concrete materials, leaks, faulty vapor
retarders, or during construction. Portals Plus Vents and
Breathers can prevent blistering, delamination, and
billowing of the membrane, while helping to maintain
thermal design efficiency. Vents are manufactured with a
one-way valve which opens to relieve moisture vapor
pressure and then closes to prevent moisture from
re-entering the system. Breathers allow for both exhaust
as well as convective movement of air within the system.
How many do I need? See the Vents
and Breathers Recommendations |
