P.I.R Underfloor Heating Foil Board 2400mm x 1200mm

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Choosing the right insulation for your project is a vital step in creating a building which is comfortable, energy efficient and environmentally sustainable.

Xtratherm provides the construction industry with innovative solutions to meet the more stringent requirements of the Building Regulations.

Xtratherm rigid thermal insulation board out performs other materials in thickness to performance ratio. The high R-values achieved by Xtratherm Thin-R allows for highly efficient low energy design to new Building Regulation standards without the necessity to increase wall, floor or roof thickness.

Xtratherm is manufactured under ISO 9001 assured quality systems.

Why Insulate?

The floor in any building is an area of considerable heat loss if it is not properly insulated. Xtratherm Thin-R when installed within a floor structure, will significantly improve the U-value (Thermal Transmittance) of new or existing floors.

Xtratherm XT/UF provides the most efficient means of insulating a floor. It has the strength and thermal properties required to reach the high performance U-values asked for in the Building Regulations. Xtratherm Thin-R should be laid with closely butted joints, laid staggered with a break bonded pattern and fitted tightly at edges and around any service penetrations.

Technical Information

Xtratherm is foil faced Polyisocyanurate (PIR) insulation board suitable for use in floors, walls and roofs. Polyiso is formed by a blowing process which generates a rigid foam composed of fine, gas filled bubbles, it is those bubbles which give Polyiso its superb insulating capability which is manufactured under ISO9001 assured quality system.

Resistance R-Values

The resistance value of any thickness of Xtratherm PIR can be ascertained by simply dividing the thickness of the material (in metres) by it's agrèment declared lambda value 0.022 W/mk.

For example, 50mm = 0.050/0.022 = R2.27