Under Shingle Roof Vents

It allows air to flow freely through the 1 roof decking slit providing more than adequate soffit ventilation to maximize ridge vent effectiveness.

Under shingle roof vents.

Perhaps the most expensive solution is shown here. 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. 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. Insulating over the roof.

They let moisture and hot air exit the attic but they aren t nearly as effective as other types of roof vents and homes generally need to have several of these units for the best results. It s a roof top installed shingle over intake vent that can be used to supplement existing soffit or undereave vents. Smartvent is nail gunnable. Smartvent can be installed under virtually any shingle course when proper installation techniques are used.

Soffit vents are commonly made of aluminum or vinyl and are installed into your soffit the surface under the eave of the roof. This aluminum cap is the finished product and does not require additional asphalt shingle ridge caps. Certainteed ridge vent combined with sufficient intake vents such as certainteed intake vent are the most efficient and effective systems you can install. The ridge of the roof is prepared similarly for both types of ridge vent.

There is no maximum slope installation. 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. Soffit vents are recognizable for the narrow slits that provide open space into which air can flow. Unlike box vents which are square off ridge vents are usually much longer and thinner.

There are a number of different types and styles of soffit vents. Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes. 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 so i extended most of my rafters to get back to 12 and 18 on my dust pan in back.

Back to shingle vents in a minute. Installing a roof plumbing vent is typically an easier task than flashing a chimney. Momentarily lift the boot and apply sealant to hold the flashing in place. Use of ridge or off ridge exhaust vents is required.

This is a very complicated assembly which should be attempted only by seasoned builders. 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. These vents are static vents that are placed over holes in the roof close to the roof ridge.

Smartvent is a tapered under shingle plastic product designed for installation. Here is how you do it.