Roof Ventilation For Metal Roofs
How to ventilate an attic with a metal roof ventilation basics.
Roof ventilation for metal roofs. A good way of thinking about ventilation is to understand that your desire is to continually and consistently bathe the underside of the roof deck with fresh air. They run continuously along the entire length of the roof so hot moist air is continuously released from the attic space across the entire ridge. The other option of course is a vented attic which requires an equal balance of intake and exhaust vents. So what ventilation options are available for your customers.
Ventilation solutions fall into two main categories. When this is done ventilation is removed. It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters connectors or end plugs needed. On a metal roof it can be housed within the perimeter of the ridge cap.
Natural unpowered and mechanical electrically assisted. We do need to mention though one very rare scenario we have seen just a couple of times over our 35 years. A ridge vent is usually installed near the ridge of the roof just below the ridge cap. Metal roofing works well with this because the metal is unaffected by heat not being able to pass through it and enter the attic.
Roof ventilation depends on the simple scientific fact that hot air rises. Ventilation that meets code requirements is adequate for any type of roofing material including metal. A ridge cap is used to top off the metal roof. Beneath the roof eaves in the soffit is the standard place to install intake vents because it s the.
A metal roof typically does not increase nor decrease the need for ventilation. Your customers can also use vents that capitalize on the natural vacuum created when air moves quickly over angled surfaces like roofs. This metal roof vent cap has been made in a way that it will fit right into your house. It can be used range hood and even the bath fan exhaust.
Hot air beneath the metal. Exhaust venting is done through vents higher on the roof such as ridge vents turbine vents or various types of can vents. 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. Ridge vents are installed at the ridgeline of the roof.
In many cases for existing homes this is the easier way to go. Made with 26 gauge galvanised steel the product looks extremely classy because of the black powder coat finish.