Our slotted foam floor underlayment is composed of durable EVA foam featuring a unique slotted design for underfloor heating system. It is an economical solution for home flooring with underfloor heating, but is quite effective and useful. The underfloor heating underlay can bounce back quickly from compression to make sure your floor is fully supported. With the closed cell structure, our slotted floor underlay provides your flooring with strong comfort, moisture proof and noise & heat insulation protection. Meanwhile the underfloor heating underlay is offered in various colors and customized sizes to fit your local market use.