Roof, Soffit, and Gable Vents

Both roof and soffit vents are needed!

Without soffit vents the hot air can’t get out.

Hot, moist air rises and escapes through rooftop exhaust vents. Cool air is drawn in from the soffit vents. Both intake and exhaust vents are needed. Without soffit vents the hot air can’t get out; it is like sucking on a pop bottle. These vents should be equally spaced around the attic area to avoid “hot spots”. Care must be taken to be sure that the soffit vents are not obstructed by insulation. Insulation baffles can actually obstruct airflow if they are not installed properly.

Roof Vents come in several styles and sizes.

RV51 roof vent in weathered gray.

RV51 Roof Vents are installed along the ridge of the roof. They have an insect screen and have 51 square inches of net-free area. They are usually available in black, brown, gray and galvanized. Steel vents stand up best to hail and other weather.

RV50 slantback roof vent in weathered gray

Slantback roof vents are another option. Instead of an insect screen, it has closely spaced louver openings.

B144 dome roof vent

B144 Roof Vents are larger, round vents. They also have an insect screen and have 144 square inches of net-free area. They are available in weathered wood and brown and are made of steel.

Ridge vent

Ridge vent is installed along the ridge, usually underneath the ridge shingles. A gap is cut through the roof sheathing along the ridge and then the ridge vent is installed.
Several designs are available. Roll ridge vent is the least expensive but does not work as well. Baffled ridge vents direct the wind up and over the ridge to provide negative pressure and pull the hot air out of the attic. They also offer more protection from wind driven rain and snow.

Turbine roof vent on a roof.

Turbine Vents have a rotating top that is turned by the wind or by the hot air flowing up turbine through it. If the wind is blowing the spinning action of the blades can help pull hot air out of the attic. However, they do have a moving part that will not last as long as the rest of the roof. And they need to spin or rain and snow can come in. Appearancewise they are best suited for barns.

photo of OHagin low profile roof vent.

O'Hagin Low Profile Vents are very weathertight and look great. They can be installed on north and west facing slopes and can be installed low on the roof as intake vents.

2 gable vents, one white and one mill colored.

Gable Vents are placed at the ends of the attics. They can function as either intake or exhaust vents depending on the direction of the wind. They will not work as exhaust vents without soffit vents. They can be square, rectangular, triangle shaped, or round. Gable vents tend to short circuit the attic ventilation. For most efficient ventilation, gable vents should be sealed in favor of only roof and soffit vents.

Soffit Vents

provide cool intake air to the attic. Soffits are the overhanging areas where the roof overhangs the wall.

Diagram of air flowing through the attic.

Rectangular Soffit Vents

3 rectangular soffit vents, brown, white and mill colored.

are inexpensive and very effective. The are louvered with an insect screen and are available in several sizes. The colors are white, brown and galvanized.

Maxflo soffit vent with a removable screen.

Maxflo Soffit vents have a removable screen so the vent can be cleaned. Soffit vents can accumulate dirt and debris which restricts the airflow. Vent Masters is the exclusive Colorado distributor for this product. For more information on Maxflo vents click HERE.

Continuous soffit vent sections

Continuous soffit vents are 2" wide and run along the length of the soffit. They are mostly for new construction as they are difficult to install as a retrofit.

Ventilated drip edge provides airflow into the attic sithout soffit vents.

Vented drip edge is used on homes that have little or no overhanging soffits. It is best installed when the roof is installed.

2 beautiful round copper vents

Small round vents
also called mini-vents or round louvers, are available in sizes from 1" to 6". However, the amount of net-free area of these vents is so small that they are only used in special situations. Vent Masters stocks these vents in copper, plastic, aluminum and stainless steel in white, brown, black, and mill finish in sizes from 1" to 6"