Venting A Bathroom Fan

Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.

Venting a bathroom fan. For example a 100 square foot bath would require a 110 cfm rated fan. How to install a bathroom vent fan. To determine which size fan to buy for your bath multiply the room s square footage by 1 1.

The correct way to vent a bathroom fan through an attic is to terminate the vent either to the roof or to the gable wall. A bathroom exhaust fan is one of the best ways to keep the humidity in your bathroom at a comfortable level and keep mold at bay. This article series explains why bathroom vent fans are needed and describes good bath vent fan choices necessary fan capacity and good bath vent fan and vent duct installation details.

What is the bathroom exhaust fan venting code. Bath vent fan installation building codes bath vent fan troubleshooting bath vent fan repair. Small bath fans provide adequate bathroom ventilation for 79 sq ft.

Options for venting a bathroom exhaust fan include best to worst. For bathroom over 100 sq ft use a large or exhaust fan to circulate the air. We explain how to install bathroom exhaust fans or vents the vent ducting.

Behind a gable vent. A 3 or 4 inch duct connects to the outlet on the fan housing and runs to a side wall or to the roof and connects to a vent cap that allows the. A bathroom is an ideal place for mold to take root.

The first step in figuring out how to install a bathroom fan is cutting a hole based on the size of the fan you need. Building code is a model code that each community can adopt and adapt according to its own needs. Bathroom vent fans are rated by how many cubic feet of air they can move in one minute known as the cfm rating.