As insulators pink and blue boards perform virtually identically with an insulating value of r 5 per inch of thickness.
Dow blue rigid foam insulation.
A multipurpose below grade foundation insulation board.
Rigid insulation comes in panels of various thickness which provide different r values.
1 in x 4 ft x 8 ft.
It is offered in multiple thicknesses and dimensions in both square edged and tongue and groove joints.
Ships from multiple locations leadtime 1 2 business days 3 968 00 3 051 95.
2 in x 4 ft x 8 ft.
We offer dow thermax polyisocyanurate and dow styrofoam xps extruded polystyrene known as blue board.
Dow styrofoam insulation blue board is a nonstructural rigid board insulation manufactured of extruded polystyrene foam xps.
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.
That s understandable since the heating and cooling bill.
Dow 2247 blue styrofoam highload 40 extruded polystyrene foam insulation r 15 3 inch thick 4 x 8 feet sheets square edge butt edge.
Insulfoam rigid foam is a high performance built to spec sheathing insulfoam rigid foam is a high performance built to spec sheathing insulation that provides superior r value and moisture resistance.
Both are closed cell foam products.
Compressive strength 40 psi.
Easy to work with rigid insulation can be incorporated into construction or added later to increase r value.
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.
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.
Pink and blue rigid foam insulation boards are made from polystyrene resin that is melted and then forced through a die to form it into the desired shape.