Proper Insulation For Bathroom Vent Pipe In Attic

Insulate the bathroom exhaust vent fan ducts.

Proper insulation for bathroom vent pipe in attic.

Try aluminum tape or zip ties to fasten the insulation you may get a better result. In un conditioned space such as an attic where otherwise your fan duct will be exposed to cold attic air in winter use insulated solid metal ducting or insulated flex duct. Use zip ties or aluminum tape to fasten the insulation. If you see that your duct isn t insulated at all pick up duct insulation at the home center.

Next make sure it is securely fastened on both ends of the pipe. You may need to pick up the duct insulation at the home center if the duct is not insulated at all. Open the insulation piece at the slit and slide it over the pipe. We explain how to install bathroom exhaust fans or vents the vent ducting the vent termination at the wall soffit or roof vent fan wiring bath vent duct insulation bath vent lengths clearances routing and we answer just about any other bathroom ventilation design or installation question you may have.

Most bath vents for homes are 3. In some localities the building department may require the use of r 3 to r 8 fiberglass pipe insulation to control condensation and even when it isn t required it s a good idea to use it especially if the vent opening is likely to ice up during the winter. The first step is to head to the attic. This will allow you to slip the insulation over the pipe corner easily.

So go to the attic and do that. Condensation can be a problem in an uninsulated attic so the homeowners trades resource center recommends installing rigid pipe with a minimum slope of 1 8 inch per foot toward the vent outlet to keep water away from the fan. I recommend replacing the vent pipe with insulated vent pipe. Consider a few facts to decide if installing vent insulation on the duct work used by your kitchen range vent hood is a good choice for your home.

For corner joints that need to be insulated cut a simulated miter joint by cutting the insulation at a 45 degree angle. Bathroom vent fan ductwork insulation. Next make sure you have one of the new roof exhaust vents on the roof and properly sealed. Continue this process over the entire length of piping in your attic.

If the duct is insulated properly the problem is most likely solved.