Insulating Dryer Vent In Attic

Insulating the duct with at least 1 in.

Insulating dryer vent in attic.

If venting outside isn t an option you can vent the dryer out of the attic through the roof using a special roof vent to keep rain out. In these cases it may be necessary to vent your dryer through the attic. The international residential code allows you to run a dryer vent through the attic but you can t terminate it there. Track the exhaust pipe from your dryer until it leaves the house.

Of fiberglass insulation will keep the duct warm during dryer operation and will minimize condensation on the duct walls. Either way insulation is a necessary step when installing or repairing the dryer vent pipe particularly if it passes through a basement or crawl space. A dryer vent should be vented outside. Sometimes such as in town homes or condos it s not possible to vent a dryer through a wall outside.

The more insulation you install the less likely you are to have condensation in the ductwork. Secure the insulation with hvac duct tape. This reduces the chance of the water condensing inside your house or dryer vent. You may have to cut through drywall to fully expose the pipe and be able to apply insulation.

Be careful you don t cut through any studs electrical wires or pipes in the process. Cover the pipe in two to three inches of fiberglass insulation. When venting dryers for long distances use rigid metal pipe with as few elbows as possible. So the air remains warm until it exits the house.

Not all dryers will allow for this so be sure to check the owners manual to ensure it can be vented in this manner. Attach insulation with foil based duct tape and caulk where pipe exits the house. Doing so would fill your attic with warm moist air that could rot the framing.