How To Insulate House With No Attic

To make insulating an attic easier grab a helper and set aside two days.

How to insulate house with no attic.

I get asked a lot about insulating old houses especially in the wintertime. One way to insulate walls of an old house is to focus on the home s exterior. Both can be added to uninsulated attics or layered over existing material. Loose fill or batt the common term for blanket insulation.

Attach 1 inch foam board insulation. But saving 1 000 or more with blown in ceiling insulation will make up. Attic ventilation keeps your house cooler in summer and it prevents moisture from building up in winter and ruining your roof framing and insulation. Fill the stud cavity from top to bottom and side to side.

Split your insulation so half goes in front of and half goes behind electrical wires. Make sure there are no uncovered electrical boxes or exposed wirings. Replace old windows with energy efficient units. For more on sealing up these areas see our section on insulation and saving energy apply weatherstripping around the attic entryway.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Install siding over the insulation. Apply a house wrap vapor barrier to exterior walls. Chances are good that if your house was built before the 1960 s there is little to no insulation.

Caulk window trim and use weatherstripping to reduce air leaks. Cut and insert 1 or thicker high r foam insulation sheets r 8 per inch against the furring giving a 1 or greater air path between the insulation and the roof deck under the cathedral ceiling. Caulk up any spaces where air can pass between the attic and the rooms below paying particular attention to areas surrounding light fixtures electrical wires pipes and ducts. Blowing attic insulation isn t hard but it s dusty sweaty work.

Compressing insulation reduces its. For diy attic insulation you ve got two choices. Nail 1 furring along every rafter side against the roof deck. By the end of the weekend you re going to be sore and tired.

How to vent an attic with no eaves. The most important steps you can take. One for attic prep and the second to actually blow the insulation. Depending on your climate you ll need r 30 to r 49 to meet code which is 5 to 8 1 2 inches of polyiso rigid foam which is r 6 per inch.