Bathroom Fan Installation Through Finished Attic

The optimal location for a bathroom fan is between the toilet and the shower.

Bathroom fan installation through finished attic.

This system is quiet too. 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. Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. They exhaust moist or stinky air outdoors while pulling in cleaner drier air from your surrounding rooms.

Avoid venting through a soffit vent or ridge vent. When you replace a bathroom fan in a home with an attic the job will usually be a lot easier. The master bathroom and the 2nd bathroom vent through the roof and through the same opening. You mount a switch in each bathroom.

For optimum performance locate it between the shower and the toilet. Because the fan is in the attic you ll hardly hear it. Draw a mark on the bathroom ceiling where you d like to install the vent fan. The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent.

If you have access to the attic the fan can vent either through a gable wall or roof. And under while medium bath fans work well for bathooms 70 to 100 sq ft. 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. Small bath fans provide adequate bathroom ventilation for 79 sq ft.

Bathroom ventiliation fans are an essential component to any bathroom. For bathroom over 100 sq ft use a large or exhaust fan to circulate the air. In this post i ll show you how to replace a bathroom fan in a finished ceiling where you can t access it from an attic. Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.

Determine where the ceiling joists are and do not cut into the joists for any reason. A single exhaust exits through the roof figure a. A grille in each bathroom attaches to ducts which then fasten to a y connector at the fan. The best way to proceed with a bathroom fan installation with no attic is to run the venting duct between the ceiling joists and through a nearby exterior wall.

The 2nd bathroom vent drips on the floor and is ruining the ceiling. For instance if your home has an attic you can get to the fan from above.