Bathroom Exhaust Fan Installation

Bathroom Exhaust Fan Installation

While this is not a guide for installing the actual fan, it does contain some very important information about making sure your fan GETS properly installed.

By properly installed I am talking about the venting and insulating of the exhaust fan. I have seen installations that have vented the air right into the attic. This is not a good practice because the same issues you had in your bathroom are now in your attic. This venting method will deteriorate your roofing substructure and then you will have bigger damage and repair issues down the road.

So, you want to make sure the air is being vented to the outdoors. This is done by installing a tube specifically made for fan venting (usually flexible aluminum foil around a wire spring form; rigid venting tube is okay as well).

When installing the tube, make sure that it runs downhill out to the external port. This is so that if condensation forms inside the tube, it will drain out the external port. If you do not do this, it will drip into your fan unit and into your bathroom.

Make sure you insulate everything in the attic dealing with the fan. Put insulation over and around the fan unit and the vent tubing. This eliminates the possibility of condensation forming on the fan and the tubing. Make sure you have enough insulation over the bathroom as well.

One other note is that some exhaust fans come with lights. If you purchase one, have the fan and the light located on the same switch so that when you turn on the light the fan also comes on. This makes for easy operation.

If you follow these tips you should be trouble-free from mold, mildew, and condensation issues.

Posted December 20, 2011 by admin in General