Reader’s Question: What types of carpet cushion can be used with radiant heat flooring?

Answer:  The best carpet cushion to use in a radiant heat flooring application would have the lowest R-value possible.  Carpenter’s product that would be the best suited for heated flooring is the Emerald 1/4″ product.  It has a density of 8 pounds per cubit feet and is approximately a R-1.  There are some low profile rubber products that have R-values that would be alternative to bonded cushion.