Under Shingle Roof Vents

Along the soffit edge of the roof or the facing edge of dormer rakes and goes virtually unnoticed.

Under shingle roof vents.

Install shingles as normal up to the base of the plumbing vent. It s a roof top installed shingle over intake vent that can be used to supplement existing soffit or undereave vents. These vents are static vents that are placed over holes in the roof close to the roof ridge. Smartvent is nail gunnable.

The ridge of the roof is prepared similarly for both types of ridge vent. Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes. Unlike box vents which are square off ridge vents are usually much longer and thinner. Certainteed ridge vent combined with sufficient intake vents such as certainteed intake vent are the most efficient and effective systems you can install.

A lot of work and best if combined with a new roof. Place the flashing or boot onto the plumbing vent so the base is resting on shingles. Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer. This aluminum cap is the finished product and does not require additional asphalt shingle ridge caps.

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

Momentarily lift the boot and apply sealant to hold the flashing in place. Soffit vents are commonly made of aluminum or vinyl and are installed into your soffit the surface under the eave of the roof. 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 so i extended most of my rafters to get back to 12 and 18 on my dust pan in back. This is a very complicated assembly which should be attempted only by seasoned builders.

Soffit vents are recognizable for the narrow slits that provide open space into which air can flow. 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. Perhaps the most expensive solution is shown here.

There is no maximum slope installation. Installing a roof plumbing vent is typically an easier task than flashing a chimney. Smartvent is a tapered under shingle plastic product designed for installation. Back to shingle vents in a minute.

Here is how you do it. 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.