Add Insulation To Attic Ducts
Apply several small pieces of tape across the insulation seam to hold it in place then seal the entire length of the seam in the insulation with a long strip of tape.
Add insulation to attic ducts. Plan to pull up the flooring and layer new insulation on top of the old. Consider adding more insulation as ductwork is farther from the furnace. Repeat to insulate the remaining ducts. Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary.
Because the simplest and cheapest way to insulate an attic is to add material to the floor. Secure the insulation with short strips of foil tape. Blowing attic insulation isn t hard but it s dusty sweaty work. It comes down to three options the first of which is to convert his attic into a conditioned space by installing 4 1 2 inches of polyiso insulation above the roof deck and then adding a new standing seam metal roof.
The foam provides a vapor barrier so the ductwork won t sweat. Install loose fill insulation to cover the ducts and the attic floor to meet or exceed the code required r value for attic insulation. Add additional sealant if necessary. Install loose fill insulation to cover the ducts and the attic floor to meet or exceed the code required r value for attic insulation.
One for attic prep and the second to actually blow the insulation. But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates. To fit your ducts simply cut the sleeve to length with a sharp pair of scissors. You can do it yourself for about 500.
Apply a long strip of foil tape along the seam in the insulation. If you want to cover metal ductwork with blown in insulation t hese steps must be followed in this order. The cost and effort to add more insulation is minimal. The pros charge 1 500 to 2 000 to do a 1 200 sq ft.
To make insulating an attic easier grab a helper and set aside two days. Add additional sealant if necessary. Cover the metal ductwork with closed cell spray foam. Like any other insulation use additional layers to provide better insulation power.
How much does attic insulation cost. Use a utility knife to cut foil faced fiberglass insulation to the proper size. If it s uninsulated you should insulated it to at least r 4 to r 8 for dfw. He d add open cell foam below the roof deck to give the assembly the required r value but the bids range from 40 000 to 60 000.
Test total duct leakage. The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home. Wrap the insulation around the duct and then pinch the seam closed. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.
Installs easily and wraps around irregular ductwork areas well. Foil backed self adhesive foam duct insulation. The duct insulation should include a vapor barrier cover.