What Type Of Insulation Do You Use For Exterior Walls

Use the same insulation to insulate the garage as that used for the home s exterior walls.

What type of insulation do you use for exterior walls.

The facing is a vapor retarder meant to slow the migration of water vapor through the wall. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. If you are installing fiberglass insulation in outside walls pay attention to the paper facing. 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.

Foam board or insulating boards are rigid panels of insulation that have a high r value. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. Check behind knee walls which are walls between living spaces and the garage or attic. How to insulate house walls from the outside.

Do this in conjunction with fixing exterior wall problems that caused the dampness in the first place. Add r5 insulative wall sheathing beneath the new siding. Unfinished walls such as foundation walls and basement walls floors and ceilings. Insulate the garage s ceiling by using the recommended r.

Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new siding and. Best for floors foundation and basement walls interior and exterior wall sheathing and low sloped ceilings. It may look easy to go buy some packs of rigid insulation panels down at the. Foam board insulation is easy to use and is a great diy way to add some insulation.

Add r5 to r6 insulative wall sheathing beneath the new. If the walls and ceiling are closed in consider using loose fill insulation as this form of insulation uses a machine to get the insulation where it needs to go through a hole in the sheetrock. Wall insulation whenever exterior siding is removed on an. Often you may have insulation in the walls but the insulation has become moldy and damp over the years greatly reducing its effectiveness.

Exterior walls and floors. Foam board or rigid foam panels best for. Some types of thicker foam board insulation are available but they may need to be special ordered. Because they have a high r value and can be used nearly anywhere in your home foam boards are one of the most common types of insulation.

Whether you want to insulate a floor or an unvented. If warm moist air from inside a house travels through the wall it will condense when it hits the cold sheathing on the outside. Find your zone on the map and then use the above insulation r value chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.