Replace Bathroom Exhaust Fan Without Attic Access

How to install a bathroom fan without attic access things to do before replacing a bathroom fan 01.

Replace bathroom exhaust fan without attic access.

The first and most important thing is to determine the fan size as well as the fan duct size. Before even purchasing a new bathroom exhaust fan it may be a good idea to remove the fan cover and measure the exhaust fan housing in between the drywall. Another consideration to think about is the placement of your fan. Those individuals who are installing a bathroom exhaust fan without attic access will want to first measure the hole in the ceiling to make sure your new fan will fit in.

A bathroom exhaust fan 5 reasons bath fans have such poor air flow install a bathroom exhaust fan how to replace a bathroom exhaust fan without attic access first floor home inspector secrets how to repair a bathroom fan the family handyman. It s just a matter of figuring out the best route for running the exhaust duct. Installing a bathroom fan with no attic is not much different from any other fan installation. Measure the fan housing and duct.

How to replace a bathroom exhaust fan without attic access first floor home inspector secrets. What is important is that the fan does its job of removing excess moisture that can lead to a multitude of problems from peeling paint to unhealthy mold and mildew. To replace a bathroom fan all you need to do is remove the old fan and install a new one in its place using the same wiring and connections. Avoid venting through a soffit vent or ridge vent.

Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. For quick reference a 50 square foot bathroom needs a 50 cfm fan. If you have a bathroom with a separate enclosed toilet you ll also need an additional fan for that space. 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. When you replace a bathroom fan in a home with an attic the job will usually be a lot easier. There are wall mount exhaust fans as well as ceiling exhaust fans. Begin by removing the screws on the cover of the old fan so that you can access the wiring.