Roof Moisture Relief Vents

The one way vent allows trapped air pressure to escape while the two way breather combined with the one way vent will help reduce moisture.

Roof moisture relief vents.

The wrong or improper ventilation can lead to condensation and moisture build up that will cause the system to prematurely fail. Flat and low slope roof designs to avoid moisture condensation problems flat roofs call up a whole new breed of building moisture problems how to avoid moisture traps under flat roofs avoid mold rot caused by moisture trapped under un vented flat roofs questions answers about the cause cure prevention of moisture problems in flat roofs and similarly hard to ventilate structures. The challenge lies in letting the roof have the vents it need and flashing them properly to keep water out. Relief of trapped moisture in all types of roof systems.

Available with one way vent. Portals plus insulation breathers and vents are used to prevent moisture vapor from becoming trapped in the roof system equalizing air pressure reducing the risks of ballooning blow off deteriorating insulation and separating deck seams. Mrv 600 one way moisture relief vents can be purchased individually. Rv 3 relief vents are equipped with epdm diaphragm which prevents exterior air from entering vent for critical or sensitive environmental applications e g.

Mrv 600 one way moisture relief vent the one way moisture relief roof vent is engineered to prolong the life of your roof system by reducing both moisture within the roof system and trapped air pressure within the building.