Under Shingle Roof Vents

These vents are static vents that are placed over holes in the roof close to the roof ridge.

Under shingle roof vents.

Use of ridge or off ridge exhaust vents is required. Back to shingle vents in a minute. 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.

Smartvent can be installed under virtually any shingle course when proper installation techniques are used. There is no maximum slope installation. Along the soffit edge of the roof or the facing edge of dormer rakes and goes virtually unnoticed. A lot of work and best if combined with a new roof.

Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes. Smartvent is nail gunnable. Momentarily lift the boot and apply sealant to hold the flashing in place. Here is how you do it.

Smartvent should be installed on shingled roofs with a minimum 4 12 pitch. Install shingles as normal up to the base of the plumbing vent. Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer. The ridge of the roof is prepared similarly for both types of ridge vent.

Perhaps the most expensive solution is shown here. Unlike box vents which are square off ridge vents are usually much longer and thinner. This aluminum cap is the finished product and does not require additional asphalt shingle ridge caps. An array of vertical 2 4 spacers creates vent channels over the foam and under the new plywood sheathing a second roof deck to which the new roofing will be nailed.

It s a roof top installed shingle over intake vent that can be used to supplement existing soffit or undereave vents. Insulating over the roof. Certainteed ridge vent combined with sufficient intake vents such as certainteed intake vent are the most efficient and effective systems you can install. To install the vent the roofer slips the flange the metal lip of the vent under shingles at the upper part of the hole and rests the flange on top of the shingles at the down slope part of the hole.

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. 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. Place the flashing or boot onto the plumbing vent so the base is resting on shingles. This is a very complicated assembly which should be attempted only by seasoned builders.