You must terminate your dryer vent outside the building according to section m1502 of the irc.
Dryer vent pipe in attic.
Dryer vent pipe takes the warm moist air from your dryer and puts it outside the house so it won t lead to damage that could cause problems.
If the air from your dryer was vented directly into your attic it wouldn t be long before you would need roof repair to replace all the moldy wooden structures.
This also means that you can t blow the dryer exhaust into the attic or the crawlspace.
When venting dryers for long distances use rigid metal pipe with as few elbows as possible.
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.
Hang the pipe from the floor joists don t let it drape on the ground.
Most dryer ducts are round and 4 inches in diameter.
Imperial indoor hook up dryer vent kit.
Vent the dryer with 4 in.
Metal duct going vertically from the dryer through the second floor ceiling.
Secure the dryer vent hood to the siding on the home s exterior using wood screws for masonry homes use appropriate anchors instead of wood screws caulk around the edges of the.
Position the assembly so that the opening faces toward the ground.
Not all dryers will allow for this so be sure to check the owners manual to ensure it can be vented in this manner.
Insert the duct pipe on the vent hood through the hole.
For pricing and availability.
The warm moist air inside the vent tends to.
Sometimes such as in town homes or condos it s not possible to vent a dryer through a wall outside.
Snap to vent master dryer vent connector kit indoor hook up dryer vent kit.
A dryer vent should be vented outside.
For dryer venting use 4 inch smooth wall aluminum pipe.
Dryer vent pipes properly called vent ducts come in a variety of materials.
Where changes of direction are required use 4 inch aluminum elbows.
In these cases it may be necessary to vent your dryer through the attic.
For pricing and availability.
The problem with attics the attic is usually colder than the rest of the house during the winter and that can create a problem for a dryer vent.
Seal the ceiling penetration so that the duct can expand in length as it heats up during use a standard roof boot such as you d use to flash a vent pipe would work.