Highest average r value per dollar about 4 6 r per inch costs the least while meeting or exceeding all required building and energy codes.
Rigid roof insulation types.
Seven common types of roof insulation facilities management insights learn about perlite insulation insulation roofing roof insulation cellular glass insulation gypsum board polystyrene insulation polyisocyanurate insulation and related trends for building operations success daily enews sign up.
Used in roof wall floor below grade structural geofoam applications.
Must be covered with 1 2 inch gypsum board or other building code approved material for fire safety.
Some foam insulation is rigid cut to size and put into the correct place under the roof.
Foam board or rigid foam.
There are a few types of insulation options the facility manager owner can choose from.
Other foams are sprayed into place and then expand to fill the space between the ceiling and roof.
Polyiso vs xps vs eps since typical membrane roofing does not include the insulation factor as a customer you have more options to choose from to insulate your facility s roof.
Must be covered with weatherproof facing.
Polyurethane is one of the most common types of foam insulation.
Rigid foam insulation packs a lot of r value into a relatively thin package.
Foam can also be used as roof insulation.
Used in this way the foam lowers the loss of energy through framing members a phenomenon called thermal bridging and increases the overall r value of the roof or wall assembly.
Unfinished walls including foundation walls.
This is easiest to do while building the house.
Expanded polystyrene eps the most versatile of the three rigid insulation options.