How To Connect Bathroom Fan To Roof Vent

No matter the location of the bathroom you can vent the exhaust fan through the wall.

How to connect bathroom fan to roof vent.

I would recommend installing a bath fan with a new vent that goes to the gable wall roof or even the soffit last choice. Both washrooms must have nearly identical square. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. The 2 pipes one a 4 master and the other a 3 2nd do not go through the ceiling but into a common box that goes through the roof.

The master bathroom and the 2nd bathroom vent through the roof and through the same opening. 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. If i remember correctly fans all have a check valve or flapper preventing back flow and drafting back into the room. The fans would be located within 5 6 feet of each other and could easily exit the roof at the same point.

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. The 2nd bathroom vent drips on the floor and is ruining the ceiling. With that in mind if they were both plumbed into one vent it should be no problem right. Vent your bath and kitchen exhaust fans through the roof through a special roof hood.

From inside the attic drive a nail through the roof directly above the bathroom vent fan. There aren t many options for routing an exhaust fan to the outside of the house. You can replace the fan opening with a grill for each washroom. Center the nail between two rafters.

The above scenario will work provided the following. There are really only three venting options. In this video this old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.

You may just want to go with a completely new vent the whole way most modern bathroom fans require 4 or 6 vent hoses for much better performance and lower noise.