Spray Foam Vs Xps Under A Radiant Heated Concrete Floor

Below grade under slab with radiant heating foamular xps insulation.

Spray foam vs xps under a radiant heated concrete floor. Radiant floor insulation under wood floors. But if you do wish to put radiant heating under solid hardwood use quarter sawn wood flooring instead of plain sawn wood flooring. Such systems allow for continuous drying of roofing materials during construction and throughout the life of. Spray foam is usually a two part mix of polyurethane and resin designed to be sprayed through a spray gun directly onto plywood sheathing to fill wall cavities as well as onto concrete slabs and other structural substrate surfaces.

The spray foam whole wall i would hold the 2x4 wall 1 2 off of the poured foundation so that the spray foam can get behind the studs and help with thermal bridging. This radiant heating insulation can be used under most flooring material. A number of studies show that eps retains less moisture than xps. I am renovating an older house and am installing radiant heating on top of the existing slab on grade.

I am planning to use 1 5 inches of foam board which gives me r 7 5. 2 spray foam the entire wall with 3 of closed cell foam. After sticking to the surface spray foam then expands and is cut flush with studs. One of the best ways to save money on rigid foam insulation installed under concrete slabs is to ensure the material is not over engineered.

However radiant barrier sheathing in general offers a number of advantages over spray foam insulation including. The heating element should be embedded within a sleeper system subfloor under a traditional subfloor or embedded within concrete. Distributor locator why owens corning insulation propink vs. With foamular xps insulation.

Their researchers found that xps insulation installed below grade for 15 years had absorbed 67 percent or more moisture. 0 2 inch 5mm closed cell polyethylene foam. I am planning to use 1 5 inches of foam board which gives me r 7 5. Target an appropriate compressive strength.

Spray foam pink. Under slab with radiant heating. Engineered wood flooring works better for radiant heating than under solid hardwood. The truth about radiant floor heating by contrast according to roddy scheer and doug moss of scientific american the uniform heat distribution over the entire surface of a floor heats the lower half of the room enveloping inhabitants in warmth at a lower overall temperature in some cases up to 5 degrees.

If i did the xps i would put my 2x4 wall up after the sheets are up and hold it right next to the xps. A common question with rigid foam insulations is how well it resists water.