Bathroom Fan Installation Through Finished Attic

Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.

Bathroom fan installation through finished attic.

Bathroom ventiliation fans are an essential component to any bathroom. 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 warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent. Because the fan is in the attic you ll hardly hear it.

A grille in each bathroom attaches to ducts which then fasten to a y connector at the fan. This system is quiet too. 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. For instance if your home has an attic you can get to the fan from above.

The 2nd bathroom vent drips on the floor and is ruining the ceiling. And under while medium bath fans work well for bathooms 70 to 100 sq ft. Small bath fans provide adequate bathroom ventilation for 79 sq ft. For optimum performance locate it between the shower and the toilet.

Look for the special fans starting at 160 at heating cooling equipment. Climb into the attic and clear away any insulation from around the hole. Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. When you replace a bathroom fan in a home with an attic the job will usually be a lot easier.

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. The optimal location for a bathroom fan is between the toilet and the shower. They exhaust moist or stinky air outdoors while pulling in cleaner drier air from your surrounding rooms. You mount a switch in each bathroom.

If you have access to the attic the fan can vent either through a gable wall or roof. For bathroom over 100 sq ft use a large or exhaust fan to circulate the air. A single exhaust exits through the roof figure a. The master bathroom and the 2nd bathroom vent through the roof and through the same opening.

Draw a mark on the bathroom ceiling where you d like to install the vent 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.