These thick heating cables are C-CSA-U certified for general purpose and wet applications indoors.  Your investment is protected by our 10 year warranty which will cover repair costs or replacement up to the original cost of the cable.  CFH-T cables can be embedded in concrete slabs or over existing subfloors within as little as 3/8" of mortar or self-leveling cement.  Using 2.5 lb diamond lath metal mesh over cables is an ideal way of reinforcing a floor without raising the floor height.  See installation section for more details.