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. The Portals Plus Vents have a one way valve designed in the unit to prevent moisture from re-entering the roof system. The Portals Plus Breathers allow for both exhaust and convective movement of air between breathers. Both the Breather and Vent are available in heavy gauge spun aluminum or black high-density polyethylene with a locking, vandal proof cap that shields against entry of wind blown rain or snow.


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OlyVent Aluminum 1-Way Vent
Prevents mositure from re-entering the roof system
Price: $26.75
Availability: In Stock
OMG Roofing Products Item #: OMG-OV1WAY -

    OMG OlyVents are engineered to prolong the life of the roof system by reducing moisture within the roof system and trapped air pressure within the building. 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. Trapped air pressure and moisture can cause a reduction in thermal protection of the insulation and roof membrane system leading to roof deck damage. Available as either one-way vents or two-way...

    OlyVent Aluminum 2-Way Breather
    Allow for both exhaust and convective movement of air between breathers
    Price: $25.50
    Availability: In Stock
    OMG Roofing Products Item #: OMG-OV2WAY -

      OMG OlyVents are engineered to prolong the life of the roof system by reducing moisture within the roof system and trapped air pressure within the building. 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. Trapped air pressure and moisture can cause a reduction in thermal protection of the insulation and roof membrane system leading to roof deck damage. Available as either one-way vents or two-way...

      Portals Plus 71028 Aluminum 1-Way Vent
      Prevents mositure from re-entering the roof system
      Price: $37.35
      Availability: In Stock
      Portals Plus Item #: POR-71028 -

        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. The Portals Plus Vents have a one way valve designed in the unit to prevent moisture from re-entering the roof system. The Portals Plus Breathers allow for both exhaust and convective movement of air between breathers. Both the Breather and Vent are...

        Portals Plus 72018 1-Way Black Plastic Vent
        Prevents mositure from re-entering the roof system
        Price: $23.45
        Availability: In Stock
        Portals Plus Item #: POR-72018 -

          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. The Portals Plus Vents have a one way valve designed in the unit to prevent moisture from re-entering the roof system. The Portals Plus Breathers allow for both exhaust and convective movement of air between breathers. Both the Breather and Vent are...

          Portals Plus 74014, 74034 - Large Aluminum 1-Way Vent
          Prevents moisture from re-entering the roof system
          Price: $424.30
          Availability: In Stock
          Portals Plus

            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. The Portals Plus Vents have a one way valve designed in the unit to prevent moisture from re-entering the roof system. The Portals Plus Breathers allow for both exhaust and convective movement of air between breathers. Both the Breather and Vent are...

            Portals Plus 72008 2-Way Black Plastic Breather
            Allow for both exhaust and convective movement of air between breathers
            Price: $19.45
            Availability: In Stock
            Portals Plus Item #: POR-72008 -

              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. The Portals Plus Vents have a one way valve designed in the unit to prevent moisture from re-entering the roof system. The Portals Plus Breathers allow for both exhaust and convective movement of air between breathers. Both the Breather and Vent are...

              Portals Plus 71008 Aluminum 2-Way Breather
              Allow for both exhaust and convective movement of air between breathers
              Price: $30.80
              Availability: In Stock
              Portals Plus Item #: POR-71008 -

                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. The Portals Plus Vents have a one way valve designed in the unit to prevent moisture from re-entering the roof system. The Portals Plus Breathers allow for both exhaust and convective movement of air between breathers. Both the Breather and Vent are...

                Portals Plus 74004, 74044 - Large Aluminum 2-Way Breather
                Allow for both exhaust and convective movement of air between breathers
                Price: $369.75
                Availability: In Stock
                Portals Plus

                  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. The Portals Plus Vents have a one way valve designed in the unit to prevent moisture from re-entering the roof system. The Portals Plus Breathers allow for both exhaust and convective movement of air between breathers. Both the Breather and Vent are...

                  Marathon- 6" Aluminum Medium Capacity Vent
                  Aluminum One Way or Two Way vent that provides pressure equalization in the roof system.
                  Price: Choose Option
                  Availability: In Stock
                  Marathon Roofing Products

                    Aluminum One Way or Two Way vent that provides pressure equalization in the roof system. Spun from heavy gauge aluminum with unique cap design that shields against entry of wind-blown rain or snow. Features: Quick and easy to installProvides Pressure equalizationLow cost, all-metal breather used for venting all types of insulationAn extra wide base opening and security attached capUnique cap design shields against entry of wind-blown rain or snowSpun from heavy gauge aluminum...

                    Marathon Roofing Products - Insulvent
                    Marathon Roofing Products Insulvent
                    Price: Choose Option
                    Availability: In Stock
                    Marathon Roofing Products

                      Aluminum One Way or Two Way vent that provides pressure equalization in the roof system. Spun from heavy gauge aluminum with unique cap design that shields against entry of wind blown rain or snow.  Quick and easy installationExtra wide base opening with security capSpun from heavy gauge aluminum

                      Marathon Roofing Products - One Way Roof Vent - Ex-Flow
                      Marathon Roofing Products One way Roof Vents
                      Price: Choose Option
                      Availability: In Stock
                      Marathon Roofing Products

                        High-density polyethylene (black)vent for BUR and modified bitumen applications or UV stabilized PVC (white) for PVC membrane and TPO applications. Locking, vandal proof cap prevents entry of wind blown rain or snowInexpensive and simple to install

                        Marathon Roofing Products - Two Way Roof Vent - M-105
                        Marathon Roofing Products Twp way Roof Vents
                        Price: Choose Option
                        Availability: In Stock
                        Marathon Roofing Products

                          High-density polyethylene (black)vent for BUR and modified bitumen applications or UV stabilized PVC (white) for PVC membrane and TPO applications. Locking, vandal proof cap prevents entry of wind blown rain or snowInexpensive and simple to install

                          Best Sellers

                          OlyVent Aluminum 1-Way Vent
                          Prevents mositure from re-entering the roof system
                          Price: $26.75

                          OMG OlyVents are engineered to prolong the life of the roof system by reducing moisture within the roof system and trapped air pressure within the building. 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. Trapped air pressure and moisture can cause a reduction in thermal protection of the insulation and roof membrane system leading to roof deck damage. Available as either one-way vents or two-way...

                          OlyVent Aluminum 2-Way Breather
                          Allow for both exhaust and convective movement of air between breathers
                          Price: $25.50

                          OMG OlyVents are engineered to prolong the life of the roof system by reducing moisture within the roof system and trapped air pressure within the building. 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. Trapped air pressure and moisture can cause a reduction in thermal protection of the insulation and roof membrane system leading to roof deck damage. Available as either one-way vents or two-way...

                          Portals Plus 71028 Aluminum 1-Way Vent
                          Prevents mositure from re-entering the roof system
                          Price: $37.35

                          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. The Portals Plus Vents have a one way valve designed in the unit to prevent moisture from re-entering the roof system. The Portals Plus Breathers allow for both exhaust and convective movement of air between breathers. Both the Breather and Vent are...

                          Portals Plus 72008 2-Way Black Plastic Breather
                          Allow for both exhaust and convective movement of air between breathers
                          Price: $19.45

                          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. The Portals Plus Vents have a one way valve designed in the unit to prevent moisture from re-entering the roof system. The Portals Plus Breathers allow for both exhaust and convective movement of air between breathers. Both the Breather and Vent are...

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