Some types of venting that run across your garage or in the garage attic must be sealed and insulated. These include venting from exhaust fans in your home. These vents must be sealed and insulated because of the temperature difference between the air inside the venting and the air in the garage; water could condense on the outside of the vent pipe and damage structures in your garage. Mold is also a real possibility. Sealing the vent pipe and insulating it prevents condensation. It is fairly easy to seal and insulate garage ceiling venting.
Instructions
1. Snip off the end of the silicone caulk tube and puncture the seal inside. Load the caulk tube into the caulk gun.
2. Press the trigger to dispense the caulk around each seam on the venting. Tool the caulk in with your finger so that the bead is 3/8 inch thick and sufficiently covers the seam. Let the caulk cure according to the manufacturer's recommendations.
3. Measure the circumference of the venting (distance around the outside of the vent pipe). Add 6 inches to this measurement and this will be the cut size for your insulation pieces. By adding 6 inches, you are allowing for the thickness of the insulation and for adequate overlap so that the seam can be sealed.
4. Roll the insulation out on the floor and cut it with your utility knife at the length you measured.
5. Wrap the insulation around the venting. Pull it tight and secure the seams together with 3-inch foil aluminum tape. Run a length of tape along the entire seam.
6. Cut insulation and tape the seams until all the venting is insulated.
Tags: vent pipe, caulk tube, must sealed, must sealed insulated, , outside vent pipe, sealed insulated