Under Shingle Roof Vent

Back to shingle vents in a minute.

Under shingle roof vent.

When determining the placement of the roof vents measure the vent housing and mark off the space on the roof. Certainteed intake vent provides continuous intake airflow at the roof s edge and provides proper intake ventilation for homes with little or no overhang. Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes. Installing a roof plumbing vent is typically an easier task than flashing a chimney.

A shingle over vent is installed over the ridge of a roof and is covered over by asphalt shingle caps that match the surrounding roof shingles. Install shingles as normal up to the base of the plumbing vent. My roof has had 12 soffits so not as challenged as yours but i added 4 to my siding for exterior foam insulation and didn t want to reduce my soffit size. Place the flashing or boot onto the plumbing vent so the base is resting on shingles.

Imo low shingle vents or edge vents will be vulnerable to ice dams which as you probably know can show up even with the best roof insulating installs. The building codes and building science for. There is no maximum slope installation. Here is how you do it.

It s a roof top installed shingle over intake vent that can be used to supplement existing soffit or undereave vents. An aluminum ridge vent has a mushroom shaped profile combined with a wide flange on both sides that sits on top of the roof shingles. It allows air to flow freely through the 1 roof decking slit providing more than adequate soffit ventilation to maximize ridge vent effectiveness. Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer.

Smartvent is a tapered under shingle plastic product designed for installation along the soffit edge of the roof or the facing edge of dormer rakes and goes virtually unnoticed. Momentarily lift the boot and apply sealant to hold the flashing in. Smartvent is nail gunnable. Vent roofs with steeples towers or cupolas can be found in different buildings from barns to cathedrals.

Use of ridge or off ridge exhaust vents is required. Smartvent can be installed under virtually any shingle course when proper installation techniques are used. Smartvent should be installed on shingled roofs with a minimum 4 12 pitch. A new roof is more than just shingles.

This aluminum cap is the finished product and does not require. Allow space for the edge of the vent opening where it will rest on the roof.