Dow 2247 blue styrofoam highload 40 extruded polystyrene foam insulation r 15 3 inch thick 4 x 8 feet sheets square edge butt edge.
Dow blue rigid foam insulation.
Compressive strength 40 psi.
Thermosetting resins from dow can be used as an alternative to traditional formaldehyde based resins for binding mineral fibers in the production of insulation blanket products that go into building insulation systems and specialty insulation.
Both are closed cell foam products.
As insulators pink and blue boards perform virtually identically with an insulating value of r 5 per inch of thickness.
Ships from multiple locations leadtime 1 2 business days 3 968 00 3 051 95.
2 in x 4 ft x 8 ft.
Blue board can be used both on exterior and interior walls to give you a continuous insulation barrier that can increase effective r value of the wall by up to 20.
1 in x 4 ft x 8 ft.
We offer dow thermax polyisocyanurate and dow styrofoam xps extruded polystyrene known as blue board.
That s understandable since the heating and cooling bill.
Homeowners consistently rank energy efficiency as a high priority when purchasing a new home.
Dow 1643 blue styrofoam se extruded polystyrene foam square edge xps insulation closed cell r 20 30 psi 4 inch x 4 x 8 foot square edge.
Since its discovery in 1941 styrofoam brand xps insulation has a long and rich heritage as a sustainable building product insulating to meeting core thermal moisture air and vapor performance requirements through its rigid foam board technology.
Rigid insulation comes in panels of various thickness which provide different r values.
It is offered in multiple thicknesses and dimensions in both square edged and tongue and groove joints.
Shop dow r 10 common.
Shop dow r 5 common.
Easy to work with rigid insulation can be incorporated into construction or added later to increase r value.
A multipurpose below grade foundation insulation board.