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.