Installing Venting Through Cold Attic

There are different kinds of 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. 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. The attic is usually colder than the rest of the house during the winter and that can create a problem for a dryer vent.

In of vent opening per 150 sq. You will then install the dryer vent through the hole that you have just made. The standard is one square foot of venting for every 150 square feet distributed evenly between the soffit and roof vents. First determine your attic area by multiplying the length by the width.

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. The number of vents in your roof will depend on the size of your attic. Try to keep it close to the fan location. Soffit vents the narrow horizontal section on the underside of your roof eaves.

The warm moist air inside the vent tends to condense on the colder walls. Attic for example has an area of 1 200 sq. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. The building code lets you reduce that by half under some conditions but more roof ventilation is usually better.

Attach the roof vent to the duct that is from the top of the roof. A 30 x 40 ft. You can attach the pieces together in all the holes by using the clamps that you have. 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. Then aim for about 1 sq. Start in the attic and drill a hole through the roof in the desired vent location. The roof is vented by simple holes cut through the sheathing and protected with vent caps or by continuous ridge vents.

Use rigid metal ducting aluminum or galvanized steel with lengthwise seams facing up and joints sealed with foil tape or duct mastic or rigid plastic pipe. If you vent through a soffit where attic vents are often located the moisture will get sucked back up into the attic or roof venting. 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. If the attic is insulated with fiberglass batts just pull back any that are blocking the flow of air.