Bathroom Exhaust Fan Venting
You can also use this vent hose as a dryer vent hose.
Bathroom exhaust fan venting. If your bathroom does not have an exhaust fan you can expect a heavy mist inside the bathroom when you take a shower. During the summer you can simply open a window but. Moisture though is the real problem since it can create potentially hazardous mold and mildew eating away at your walls ceiling and trim. Bathroom exhaust fans perform an important function by removing excess moisture from your home.
When venting a bathroom exhaust fan make sure to vent the air to the outside rather than into your attic where it can cause mold and mildew to form. If your bathroom includes a steam bath steam shower or jetted tub sources of additional moisture you will need to increase the total bathroom exhaust vent capacity in cfm. I would never recommend venting a bathroom fan into an attic or crawl space for the simple reason that you are adding a significant amount of moisture into the space and that mold could start growing. However i also have seen many bathroom vents improperly terminated inside the.
So i bought two vent hoses so that i could extend the bathroom exhaust all the way to so the soffit and out of the house. It is moist warm and can remain in that state for quite a while if there is no ventilation. Options for venting a bathroom exhaust fan written by doityourself staff. If you continue to use your bathroom without removing the moisture you will likely start seeing mildew growing in various places.
The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. A birds nest in a bathroom vent will greatly reduce or eliminate the effectiveness of a bathroom exhaust fan. An exhaust fan pulls this moisture out of the air and prevents it from sitting on the walls. Options for venting a bathroom exhaust fan include best to worst.
If youre tempted to vent your exhaust fan through an existing roof vent or even. A bathroom is an ideal place for mold to take root. Bathrooms can only benefit from some type of exhaust venting systembut which type do you need and what does the bathroom exhaust fan venting. The bathroom exhaust ventilation fan disperses air through an opening in the fan housing which is usually 3 inches in diameter and ideally faces in the direction of the ventilation system outlet.
Although this isnt always possible in attic crawl spaces you should always insulate the duct to prevent condensation problems. A bathroom exhaust fan is one of the best ways to keep the humidity in your bathroom at a comfortable level and. Bathroom ventilation codes require a bathroom exhaust fan to vent to the exterior not the attic for health and structural reasons. On mar 28 2017.
The model codes are specifying the minimum bathroom vent fan capacity needed. Duct already wrapped in insulation at home centers. You can find 4 in. The basics of venting a bathroom exhaust fan.
Bathrooms are wet smelly places that often are closed in and unventilated. Bathroom venting exhaust fan cfm adequacy. On feb 18 2010.