Adding Attic Insulation To Old House

Lay the batts perpendicular to the joists so.

Adding attic insulation to old house.

3 have a friend add material to the hopper. Turn off the power to the outlet. 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. Because the simplest and cheapest way to insulate an attic is to add material to the floor.

You should be able to see if there is insulation in the wall. Block all vents in the attic floor with baffles making sure to extend the baffles at least four inches above the planned thickness of your insulation. This old house general contractor tom silva explains the wide world of spray foam insulation how to install insulation learn how to beef up your wall s weather protection in 4 easy steps. How to install attic insulation over existing insulation wear a long sleeve shirt gloves eye protection and a dust mask.

Replace old windows with energy efficient units. If there is not any insulation in your attic fit the insulation between the joists. Why the attic is key 1. Inspect the exterior walls by using an electrical outlet.

Let s apply this knowledge to your. Make sure you use an unfaced batt one without a paper or foil layer so the insulation does not trap moisture in the ceiling. Many old houses had some attic insulation usually cellulose or rock wool but these materials lose their effectiveness over time. Plan to pull up the flooring and layer new insulation on top of the old.

Install siding over the insulation. Attach 1 inch foam board insulation. This old house general contractor tom silva shows affordable ways to create an energy efficient attic how to know what insulation is behind your walls if you live in an older home understanding what pads your walls is essential to keeping your family safe. How to insulate an old house.

Caulk window trim and use weatherstripping to reduce air leaks. Fill the gaps your insulated attic isn t necessarily a sealed attic. Pull out a small amount of insulation if needed to help. Before you begin the installation of insulation.

Apply a house wrap vapor barrier to exterior walls. If the existing insulation is near or above the top of the joists it is a good idea to place the new batts perpendicular to the old ones because that will help to cover the tops of the joists themselves and reduce thermal bridging through the frame. How to insulate walls in an old house.