Metal Roof Venting Details

Roof pitch the metal roofing panels shown in this manual require a mini mum slope of 2 per foot to ensure proper drainage.

Metal roof venting details.

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. Penetrations through standing seam metal roofs. Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available. Vent roofs with steeples towers or cupolas can be found in different buildings from barns to cathedrals.

Refer to the rain carrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage. Although this isn t always possible in attic crawl spaces you should always insulate the duct to prevent condensation problems. Selecting metal roof and wall panels is a strategic investment for the life of a building. Installing some type of ventilation mechanism on a metal roof is not a lot different from the addition of vents to any type of roof.

An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing. Cor mtl7h 3 purlin vent structural steel detail cor mtl8 metal roof framing w wood deck and ridge vent cor mtl9 metal framing w s 400 soffit vent cor sp1 spacer for metal roofing over asphalt shingles composition shingle detail drawings cor comp2 v 600 ridge vent cor comp3 v 300 ridge vent cor comp4 revolution 11 roll vent. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. However there are a few simple tips that will help make the process a little easier and also ensure that the vents are placed to allow the maximum benefit.

Roof ventilation depends on the simple scientific fact that hot air rises. To protect their investment it is key that your customers ensure the proper ventilation system is installed. This web exclusive comes from rob haddock director of the metal roof advisory group ltd. For longer slopes and lower roof pitches contact fabral for other suitable profiles.

The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. Hot air beneath the metal needs an escape route near the top of the roof and intake vents at the. Of colorado springs co. You can find 4 in.

Vent exhaust fans through a roof hood roof vent hood details. Optimal air movement not only promotes temperature regulation and energy efficiency but also reduces the risk of moisture related issues like condensation build up.