What Type Of Insulation Do I Use For Exterior Walls

These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.

What type of insulation do i use for exterior walls.

Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces. Insulate the garage s ceiling by using the recommended r. It may look easy to go buy some packs of rigid insulation panels down at the. Extremely lightweight and easy to handle foilboard cavity wall insulation is outstanding for use in exterior walls including brick veneer cavity walls concrete walls and cladded walls.

While rated differently these two types of insulation are close enough in thickness that they can both fit into modern two by four wall systems. Some key benefits of cavity wall insulation. Types of insulation insulation type. Do it yourself insulation of unfinished walls floors and ceilings.

Best for floors foundation and basement walls interior and exterior wall sheathing and low sloped ceilings. See the department of energy s doe ranges for recommended levels of insulation below. In most wall applications you will use r 13 or r 15 kraft faced fiberglass insulation rolls for these two by four stud walls. Use the same insulation to insulate the garage as that used for the home s exterior walls.

Blanket batts and rolls best for. 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. Blanket batts and rolls are typically constructed with. 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.

If the walls and ceiling will remain open not covered with drywall or plywood it s a good idea to use paper faced or encapsulated fiberglass bats that are wrapped in a plastic film. 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. Foam board or insulating boards are rigid panels of insulation that have a high r value. How to insulate house walls from the outside.

Exterior walls and floors. Check garage walls and ceilings that are adjacent to conditioned spaces. 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. Complete with flexifast fastener technology our insulation is flexible fast and easy to use.