
| Length (Feet): | 60' |
|---|---|
| Width: | 4 ft. |
| Height: | 1-1/4" |
| Length: | 60 ft. |
| Application: | Heating Radiant Heat |
| R-Value: | 5-10.3 |
| Material: | Polystyrene |
| Max Temp (F): | 180°F |
I believe it would be fine and not weaken the slab, but the question would be best posed to the manufacturer.
I used this product in a residential application. I can warn you to insulate the entire slab; not just underneath, but on the sides as well. The product performs as promised but there is some temperature bleed into and out of the foundation concrete at the edges, which unfortunately was not isolated ( with product) from the slab before the pour. An engineer can confirm that load-bearing would not be a factor. The product is perfect for thermal retention/isolation.
The R-value depends upon the manner in which the insulation is installed. If the sheets overlap and are taped together at the seams, R-Value will be higher. When there are gaps between sheets, R-Value decreases.
The material alone has an r value for the 1.25 inch thickness of 5 at 70 F. If you includl the rvalues of a made up assembly including the gravel sand and concrete, the manufacturer suggests that 10.3 is possible-- see brochure on documents tab.
Foamboard is used for this application, not staples.
Yes, the X5 will accept foam staples as both the film and the foam will hold the staples and tubing in place.