Bathroom Exhaust Fan Duct Routing

Surprisingly bathroom fans are not required by some building codes.

The fan neighborhood richmond va. It eliminates the need for routing ductwork through the house and these fans usually dry the bathroom more quickly. I always insulate and air seal up and over the duct even as it runs on top of the attic framing and slope to drain any condensation down and out. Behind a gable vent.

Video tutorial on how to replace your bathroom exhaust fan in 5 minutes or less. Bathroom code does address the issue of moving odor and moisture laden air from the bathroom to the outside. To remove impurities in the air moisture smells smoke heat etc to encourage air circulation within an area.

We explain how to install bathroom exhaust fans or vents the vent ducting the vent termination at the wall soffit or roof vent fan wiring bath vent duct insulation bath vent lengths clearances routing and we answer just about any other bathroom ventilation design or installation question you may have. The fan and light operate separately or together and are housed in a classic white design that complements any decor. In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover.

This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space. All municipalities have different requirements but some do not draw a hard line on requiring exhaust fans. Through the roof or an exterior gable wall.

Options for venting a bathroom exhaust fan include best to worst. This involves running ductwork from the fan usually though an attic and out through the roof. Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out.

You are doing the right thing routing your exhaust fan ducting to the gable end. Going through the roof or turning down into a soffit is problematic. Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof.

Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. Avoid venting through a soffit vent or ridge vent. The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent.

To transfer tempered warmcool air from one place to another. There are 3 main reasons as to use exhaust fans. These factors play a part in determining which bathroom exhaust fan will be suitable for the desired application.

If you have access to the attic the fan can vent either through a gable wall or roof.