The attic structure beneath a metal roof is just as susceptible to moisture damage as is the structure beneath a shingled roof.
Square attic vents on metal roiof.
When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic.
On a shingled roof homeowners may choose from a variety of vents but with a metal roof some types of vents are better than others are.
Soffit vents are one of the most popular intake vent styles.
Suitable for up to 12 12 roof pitch.
Promotes a cooler drier attic.
They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic.
Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge.
Hot air beneath the metal needs an escape route near the top of the roof and intake vents at the.
The idea of roof vents existed for hundreds of years with natural vents employed in chinese buildings during the tang dynasty natural ventilation ducts in the buddhist monks caves and wind catchers incorporated in arabian architecture.
The building codes and building science for.
Roof ventilation depends on the simple scientific fact that hot air rises.
Aluminum and galvanized steel construction.
This cap features both a back draft damper and bird screen preventing outside air from entering the home and birds and small pests from entering duct work.
Continuous or individual soffits.
Vent roofs with steeples towers or cupolas can be found in different buildings from barns to cathedrals.
It is compatible with 3 or 4 ductwork and includes a 3 to 4 adapter for convenience.
Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator.
Ventsure metal square top vent is suitable for up to 12 12 pitch and features a weather resistant rolled flange.
Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space.
Enter square footage calculate or enter the square footage of the attic or area to be vented.
Download brochure pdf 353 kb.
Large flange for easy installation.