What Type Of Insulation Is Used For Exterior Walls

The facing is a vapor retarder meant to slow the migration of water vapor through the wall.

What type of insulation is used for exterior walls. Our insulation delivers a number of benefits beyond thermal performance in external walls such as best in class fire resistance exceptional noise reduction water repellence as well as vapor permeability and dimensional stability meaning excellent fit and real world performance for the lifetime of the building. Unfinished walls such as foundation walls and basement walls floors and ceilings. It is more effective to install insulation over the surface of the blocks either on the exterior or interior of the foundation walls. Turn off the electricity then remove an electrical outlet cover for a view of exterior insulation.

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. It may be combined with fiberglass or it may simply be made of gypsum and given a waterproof exterior finish. Gypsum sheathing is a type of sheetrock meant to be used in exterior applications.

Gypsum exterior wall sheathing. It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation. The installation process typically involves removing a strip of siding from the home s exterior drilling small holes between each wall stud and inserting a tube to fill the cavity to a density of 3 5 pounds per cubic foot. Check behind knee walls which are walls between living spaces and the garage or attic.

If you are installing fiberglass insulation in outside walls pay attention to the paper facing. Check garage walls and ceilings that are adjacent to conditioned spaces. Remove and dispose of that old insulation and install new insulation. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.

Placing insulation on the exterior has the added advantage of containing the thermal mass of the blocks within the conditioned space which can moderate indoor temperatures. Cellulose is available as blown in insulation making it one of the best options for insulating finished walls in your home. Whether you want to insulate a floor or an unvented. Do this in conjunction with fixing exterior wall problems that caused the dampness in the first place.

Foam board or rigid foam panels best for. While not as popular as other types of sheathing this material does have some particular uses that keep it in business. Most used when framing the exterior walls of a house. Eps is used under roofing over foundation walls and beneath siding.