Vented Metal Roof Detail

The purpose of the ridge vent is to create constant air flow along the horizontal ridge of your home.

Vented metal roof detail.

A ridge vent is designed to allow air to flow freely from the attic. Refer to the rain carrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage. Hot air beneath the metal needs an escape route near the top of the roof and intake vents at the bottom of the roof. Home ventilation metal roofing venting can sometimes be a good way to get things off of our chest but when it comes to home construction venting can be a great way to get hot air and moisture out of our attic.

Generally structures larger than 2 400 sq. It s made from a permeable material and is placed on top of the metal roofing panels at the ridge of the roof. Structures that house people animals and or valuable material also benefit from cross ventilation using ridge vents near the roof and a louver vent located closer to the structure s floor. To vent or not to vent a metal roof october 2 2017 filed under.

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. Each pair of screws left was sealed at to the membrane with tescon naideck double sided butyl tape. Asc building products has introduced a vented peak metal roof flashing to address the need for a clean reliable uphill venting solution on the shed style roofs. As long as nothing blocks the airflow between the intake and exit vents the air.

Based on asc s similarly effective ridge venting solution this system avoids the use of secondary roof surface venting products which penetrate the roof plane and create unnecessary penetrations into the metal roofing. Pac 150 fbc approval 16942 r1 2014 code. Roof pitch the metal roofing panels shown in this manual require a min imum slope of 2 ʺ per foot to ensure proper drainage. For longer slopes and lower roof pitches contact fabral for other suitable profiles.

We respect your privacy and will not use your email address for other purposes. Pac 150 032 aluminum over plywood deck. The final detail for a watertight metal roof installation is sealing the roof clips. For this roof over 600 clips were used.

Sign up now to get the latest metal roofing and metal architectural product news 6 times a year. May require more than one type of ventilator to allow air to move between them cross ventilation.