Dow Polyisocyanurate Cavity Wall Insulation

The glass fiber reinforcement contributes to improved fire performance and dimensional stability.

Dow polyisocyanurate cavity wall insulation.

Easy to work with rigid insulation can be incorporated into construction or added later to increase r value. Thermax sheathing specially designed to hold a class a fire rating. 2 vertical compressive strength is measured at 10 percent deformation or at yield whichever occurs first. 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.

Wall and ceiling overview. 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. The unparalleled performance of continuous insulation results from the reduction of thermal bridges created by wall framing members. Both are closed cell foam products.

Continuous insulation provides improved performance compared to typical cavity insulation by creating an uninterrupted thermal barrier across the wall. 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. Thermax sheathing can be installed exposed to the. We offer dow thermax polyisocyanurate and dow styrofoam xps extruded polystyrene known as blue board.

Ask your seller for the fact sheet on r value. R means resistance to heat flow. Polyiso is the best insulation for cavity wall applications. Polyiso ci commercial wall construction.

The other is a tri plex facer consisting of a three ply laminate of durable kraft. Specify polyiso for cavity wall applications. 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. Rigid insulation comes in panels of various thickness which provide different r values.

On tuff r insulation one facer is a continuous sheet of aluminum foil. Foil faced polyiso products have higher long term r values compared to other rigid board products. The higher the r value the greater the insulating power. Foil faced polyiso astm c 1289 03 type i class 1 is the product of choice for masonry cavity wall construction.

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. 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.