Key features:Quick & easy installationSuitable for all floated floor finishes ProWarm™ ProFoam Insulation Boards are specifically designed for use with the underwood foil electric underfloor heating systems. They can be floated over a concrete or timber subfloor, and can easily be cut to size or shape using a Stanley knife. Once laid, the Prowarm underwood foil heating mat can be laid on top, followed by a floated engineered wood or laminate floor finish. ProWarm™ ProFoam Insulation Boards have a high compressive strength (30tonnes / m2) and are water resistant, making them an excellent choice for multiple applications. They are extremely lightweight at just 70 grams per sheet making them easy to handle and fit.One pack of 20 sheets will cover 10m2 making ProWarm™ ProFoam Insulation Boards a great cost effective solution to insulating beneath an underwood foil heating system. These boards can also be used as an underlay for floated engineered wood or laminate floor finishes and also provide good acoustic insulation. Additional information:Specification & certification: BS EN 13163:2012+A2:201650 years guarantee