Dow Polyisocyanurate Cavity Wall Insulation

Thermax sheathing is a non structural rigid board insulation consisting of a glass fiber infused polyisocyanurate foam core laminated between 1 0 mil smooth reflective aluminum facers on both sides.

Dow polyisocyanurate cavity wall insulation.

1 values are consistent with the criteria of astm c578 and the requirements of the ftc r value rule 16 cfr part 460. For more than 35 years rmax has been creating insulation solutions based on the latest building science. The unparalleled performance of continuous insulation results from the reduction of thermal bridges created by wall framing members. Continuous insulation provides improved performance compared to typical cavity insulation by creating an uninterrupted thermal barrier across the wall.

The glass fiber reinforcement contributes to improved fire performance and dimensional stability. R means resistance to heat flow. On tuff r insulation one facer is a continuous sheet of aluminum foil. Specify polyiso for cavity wall applications.

Polyiso ci commercial wall construction. Wall and ceiling overview. 2 vertical compressive strength is measured at 10 percent deformation or at yield whichever occurs first. Thermax sheathing can be installed exposed to the.

Both are closed cell foam products. Polyisocyanurate foam insulation panels come with a layer of foil on each side to keep the gases in so there is the potential to solve a bit of a growing problem in wall assembly durability. Tuff r polyisocyanurate insulation consists of high performance high r value closed cell polyisocyanurate foam core boards sandwiched between a choice of durable exterior foil facers. Thermax sheathing is a nonstructural rigid board insulation with a glass fiber infused polyisocyanurate foam core laminated between 1 0 mil smooth reflective aluminum faces.

We offer dow thermax polyisocyanurate and dow styrofoam xps extruded polystyrene known as blue board. Thermax sheathing specially designed to hold a class a fire rating. Ask your seller for the fact sheet on r value. Rigid insulation comes in panels of various thickness which provide different r values.

Foil is a vapour barrier and a very good one at that it fact it stops even more moisture than the normal 6 mil polyethylene normally used. The other is a tri plex facer consisting of a three ply laminate of durable kraft. Polyiso is the best insulation for cavity wall applications. Our full line of high quality polyiso based wall and specialty insulation products for commercial residential and industrial applications deliver maximum r values and minimum environmental impact with efficiency in installation cost and design.

Foil faced polyiso products have higher long term r values compared to other rigid board products. Easy to work with rigid insulation can be incorporated into construction or added later to increase r value. Pour in place insulation spray insulation polyol blends compatible with polyester and polyether polyol formulations the surfactants simplify the mixing of polyols and blowing agents maintain the blowing agents in the emulsion or solution and provide excellent emulsion stability.