Using Ridge Vent On Low Slope Roof

It is pretty common to find ridge vents dislodged or blown off during a hurricane figure 8.

Using ridge vent on low slope roof.

A ridge vent is an important part of a home s roofing system. For starters you will be able to enjoy fresh air especially if your home is located in humid or hot areas. Position the aluminum ridge vent along the reference line. This happens because of the change in air pressure.

This process also helps to reduce the amount of moisture buildup in your roof avoiding any damages to your roof members. Installed at the peak of a sloped roof the ridge vent allows damp warm air to escape from the attic. Fasten the vent to the roof decking and rafters or trusses by nailing through the flange on both sides of the vent using the nails and nail spacing recommended by the manufacturer. One of the great things about a ridge vent is that it is at the topmost point of your roof with hot air constantly rising it is bound to make it way out of the top of your vents thus bringing in cooler air through your soffit vents and into your roof cooling it down.

Ridge vents are frequently fastened down using ordinary roofing nails since these are normally handy. The problem i m having is finiding a ridge vent that is capable of being installed on the ridge above the dormer. But because you have a few dormers on your home i doubt it would fall into the. My concern with very low sloped metal roofs are the eave ridge rake and any openings.

Metal roofs use lapped flashing which relies on a slope to shed the water in the desired direction. Most of the ceilings are vaulted so there are almost no attics. Typically 1 12 essentially flat roofs use scuppers parapets and membranes to ensure that the water can not wick back by capillary action or wind. A properly installed ridge vent increases energy efficiency and prolongs the life of your roof.

The wind which blows over your roof will help to draw the hot moist air out of your attic when roof ridge vents are installed correctly. I ll leave a 1 minimum gap between the insulation between the rafters and the roof decking and this cavity needs to be ventilated. Most ridge vents cobra etc call for at least a 3 12 pitch. I had expected to use continuous ridge vents but they seem to require a minimum slope of 3 12 which is more than several of my roofs.

The code here is massachusetts allows shingles on roofs with pitches of 2 12 or steeper so i m good there. Remarkably ridge vents are considered as long. Even a partially dislodged ridge vent can begin to act like a scoop that collects wind driven rain and directs it into the attic. Add any connectors and end caps that came with your ridge vent system to ensure the vent is watertight.

It ll be 2 12 on one side and about 5 12 on the other. There are many benefits of installing a ridge vent in your roof.