Installing Venting Through Cold Attic

Start in the attic and drill a hole through the roof in the desired vent location.

Installing venting through cold attic.

The soffit vents are now installed but you still need to make sure there s no insulation blocking the new 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. 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. Attic for example has an area of 1 200 sq.

The warm moist air inside the vent tends to condense on the colder walls. In of vent opening per 150 sq. Try to keep it close to the fan location. The building code lets you reduce that by half under some conditions but more roof ventilation is usually better.

The number of vents in your roof will depend on the size of your attic. Install half of the required vent area in soffit vents. Installation first requires a wood frame made of 2x4s installed from the attic between two studs. 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. If the attic is insulated with fiberglass batts just pull back any that are blocking the flow of air. Soffit vents the narrow horizontal section on the underside of your roof eaves. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in.

Then aim for about 1 sq. First determine your attic area by multiplying the length by the width. There are different kinds of vents. The attic is usually colder than the rest of the house during the winter and that can create a problem for a dryer vent.

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 standard is one square foot of venting for every 150 square feet distributed evenly between the soffit and roof vents. You can attach the pieces together in all the holes by using the clamps that you have. 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.

Attach the roof vent to the duct that is from the top of the roof. You are then back to sticking the vent to the wall with the brackets and screws. 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. The roof is vented by simple holes cut through the sheathing and protected with vent caps or by continuous ridge vents.