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.
Dryer vent pipe in attic.
Metal duct going vertically from the dryer through the second floor ceiling.
Vent the dryer with 4 in.
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.
You must terminate your dryer vent outside the building according to section m1502 of the irc.
In these cases it may be necessary to vent your dryer through the attic.
For pricing and availability.
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.
Imperial indoor hook up dryer vent kit.
Where changes of direction are required use 4 inch aluminum elbows.
When venting dryers for long distances use rigid metal pipe with as few elbows as possible.
Hang the pipe from the floor joists don t let it drape on the ground.
Position the assembly so that the opening faces toward the ground.
Be careful you don t cut through any studs electrical wires or pipes in the process.
For dryer venting use 4 inch smooth wall aluminum pipe.
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.
Snap to vent master dryer vent connector kit indoor hook up dryer vent kit.
A dryer vent should be vented outside.
The warm moist air inside the vent tends to.
Insert the duct pipe on the vent hood through the hole.
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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.
This also means that you can t blow the dryer exhaust into the attic or the crawlspace.