Exterior Wall And Attic Insulation Is Used To

Add r5 insulative wall sheathing beneath the new siding.

Exterior wall and attic insulation is used to.

Foam boards work well to insulate. 1a attic access door. Installing attic insulation is one of the most valuable ways to save energy and keep your home warmer. You can achieve better thermal performance in your attic by adding an additional layer of insulation.

R values vary based on the type thickness and density of the material being used. In addition to walls and attics insulation should be installed in ceilings with unheated spaces basement walls floors above vented crawl spaces cathedral ceilings floors over unheated garages or porches knee walls and in between interior walls especially bathrooms as well as ceilings and floors. The most effective places to add insulation to older homes are exterior walls attics basements and crawl spaces. Still in use today it s made by melting down rock and sand and then spinning it together to make an insulating fiber.

In addition to the exterior walls you should also insulate any walls between the living space and unconditioned areas like garages or attic storage spaces. If you plan to install new siding on your house add exterior wall sheathing beneath the new siding. Add r5 to r6 insulative wall sheathing beneath the new. Adding extra insulation to the exterior walls of an older home when renovating or remodeling is a great way of improving a home s walls thermal performance and reducing energy use while reducing heating bills carbon footprint and improving a building s comfort level.

However when insulation was used it usually consisted of a product called rock wool or stone or slag wool. Homeowners rely on this type of insulation which is usually made of polyurethane polystyrene or polyisocyanurate for both exterior and interior wall sheathing. In unfinished attic spaces insulate between and over the floor joists to seal off living spaces below. There is no need to insulate between areas that are both conditioned.

Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system. Wall insulation whenever exterior siding is removed on an. Seal up door and window cracks with caulk. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new siding and.

If the air distribution is in the attic space then consider insulating the rafters to move the distribution into the conditioned space. The higher the r value the better the thermal performance of the insulation. Most homes are insulated in the attic and any floors located above unfinished basements or crawl spaces. The goal is to create a consistent wrap around the home a thermal envelope with no penetrations.