Installing Venting Through Cold Attic

The roof is vented by simple holes cut through the sheathing and protected with vent caps or by continuous ridge vents.

Installing venting through cold attic. Leave the drill bit sticking through the roof so you can find the hole. Installation first requires a wood frame made of 2x4s installed from the attic between two studs. First determine your attic area by multiplying the length by the width. Venting the soffits is often done by installing continuous strip vents between the soffit boards or by adding rectangular and round vents at regular spacing between the rafters the easier option for existing soffits.

The warm moist air inside the vent tends to condense on the colder walls. The attic is usually colder than the rest of the house during the winter and that can create a problem for a dryer vent. You are then back to sticking the vent to the wall with the brackets and screws. The soffit vents are now installed but you still need to make sure there s no insulation blocking the new vents.

If there s blown in insulation like ours rake back the fluffy stuff with a 3 or 4 ft long 1 x 6 or use a garden rake or hoe. If the attic is insulated with fiberglass batts just pull back any that are blocking the flow of air. Adequate attic ventilation is important to reduce your utility bills and avoid damage to the roof and attic. You will then install the dryer vent through the hole that you have just made.

From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. Start in the attic and drill a hole through the roof in the desired vent location. The number of vents in your roof will depend on the size of your attic. Soffit vents the narrow horizontal section on the underside of your roof eaves.

Attic for example has an area of 1 200 sq. Install half of the required vent area in soffit vents. Having a vent in each side of the gable was the typical attic ventilation configuration in older houses but today it is considered woefully inadequate for an efficient house. Try to keep it close to the fan location.

Your roofer will build this frame just a little larger than size of the vent leaving 1 8 inch of extra room on each side. Then aim for about 1 sq. In of vent opening per 150 sq. Attach the roof vent to the duct that is from the top of the roof.

You can attach the pieces together in all the holes by using the clamps that you have. The standard is one square foot of venting for every 150 square feet distributed evenly between the soffit and roof vents. There are different kinds of vents. A 30 x 40 ft.