What Type Of Insulation To Use On Foundation Walls

Check garage walls and ceilings that are adjacent to conditioned spaces.

What type of insulation to use on foundation 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. Turn off the electricity then remove an electrical outlet cover for a view of exterior insulation. R 7 5 scored squared edge rigid foam board insulation sheathing. Whether you want to insulate a floor or an unvented.

In most wall applications you will use r 13 or r 15 kraft faced fiberglass insulation rolls for these two by four stud walls. I would use at least 2 inches in a warm climate and 3 or 4 inches in a cold climate. Adding foundation insulation during new construction is usually less expensive. Owens corning foamular 150 1 1 2 in.

Best for floors foundation and basement walls interior and exterior wall sheathing and low sloped ceilings. Protect the above grade portion of the insulation from physical abuse and sunlight with one of these materials. Exterior walls and floors. Foam board or rigid foam panels best for.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Install rigid foam rated for soil contact type ii eps type ix eps or xps vertically up against the concrete. Simple payback is typically in the range of 6 months for a simple do it yourself installation to 20 years for professionally installed insulation. 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.

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. 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. The type of materials used the application method and the extent of work all affect the overall cost.