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.
Dow polyisocyanurate cavity wall insulation.
2 vertical compressive strength is measured at 10 percent deformation or at yield whichever occurs first.
Rigid insulation comes in panels of various thickness which provide different r values.
Specify polyiso for cavity wall applications.
Foil faced polyiso astm c 1289 03 type i class 1 is the product of choice for masonry cavity wall construction.
Ask your seller for the fact sheet on r value.
On tuff r insulation one facer is a continuous sheet of aluminum foil.
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.
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.
The higher the r value the greater the insulating power.
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.
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.
R means resistance to heat flow.
The unparalleled performance of continuous insulation results from the reduction of thermal bridges created by wall framing members.
Thermax sheathing can be installed exposed to the.
Thermax sheathing specially designed to hold a class a fire rating.
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.
For more than 35 years rmax has been creating insulation solutions based on the latest building science.
Polyiso ci commercial wall construction.
Both are closed cell foam products.
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.
Easy to work with rigid insulation can be incorporated into construction or added later to increase r value.
Wall and ceiling overview.
The glass fiber reinforcement provides improved fire performance and dimensional stability.
We offer dow thermax polyisocyanurate and dow styrofoam xps extruded polystyrene known as blue board.
Foil faced polyiso products have higher long term r values compared to other rigid board products.
Continuous insulation provides improved performance compared to typical cavity insulation by creating an uninterrupted thermal barrier across the wall.
