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.
What type of insulation to use on foundation walls.
Check behind knee walls which are walls between living spaces and the garage or attic.
Whether you want to insulate a floor or an unvented.
Foam board or insulating boards are rigid panels of insulation that have a high r value.
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.
Protect the above grade portion of the insulation from physical abuse and sunlight with one of these materials.
Foam board or rigid foam panels best for.
Owens corning foamular 150 1 1 2 in.
Unfinished walls such as foundation walls and basement walls floors and ceilings.
In most wall applications you will use r 13 or r 15 kraft faced fiberglass insulation rolls for these two by four stud walls.
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.
Install rigid foam rated for soil contact type ii eps type ix eps or xps vertically up against the concrete.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Exterior walls and floors.
The type of materials used the application method and the extent of work all affect the overall cost.
I would use at least 2 inches in a warm climate and 3 or 4 inches in a cold climate.
Best for floors foundation and basement walls interior and exterior wall sheathing and low sloped ceilings.
Turn off the electricity then remove an electrical outlet cover for a view of exterior insulation.
Check garage walls and ceilings that are adjacent to conditioned spaces.
R 7 5 scored squared edge rigid foam board insulation sheathing.
Adding foundation insulation during new construction is usually less expensive.