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PET Vapour Barrier for all Vysa-Film Radiant Floor Heating Elements

Vapour Barrier for all Vysa-Film Radiant Floor Heating Elements

PET Vapour Barrier for all Vysa-Film Radiant Floor Heating Elements

PET Vapour Barrier for all Vysa-Film Radiant Floor Heating Elements

Once the Vysa-Film has been installed, and before laying the final floor covering, a layer of Polyester Vapour Barrier (PVB) must be used to cover the whole Vysa-Film underfloor heating system. The PVB provides:

1) Additional mechanical protection against damage to the Vysa-Film by chaffing as slight movements of the final floor can damage the Vysa-Film .

2) Additional supplementary electrical insulation as a requirement of the BS EN 60335-2-96 Approval Certificate.

3) Additional protection against mass spillage of liquid on the finished floor. The joints where adjacent edges of the PVB film meet must be overlapped by a minimum of 100mm. They should then be covered with waterproof, strong adhesive tape (50mm wide Vysa-Bond SAT – order code 2465) along the entire joint length.

Vapour Barrier for all Film Radiant Floor Heating ElementsYou must cover the entire floor with the PVB, even unheated areas.
PVB is available in 1m x 25m rolls which will cover approximately 20m2 of floor area when installed.

To install PVB, simply roll out the PVB film, cut to length and overlap adjacent pieces by a minimum of 100mm.

Tape along the entire length of the overlap using Vysa-Bond SAT fixing tape (1 roll of PVB will require approximately 25m of Vysa-Bond SAT fixing tape).

The Polyester Vapour Barrier (PVB) is required to provide additional supplementary insulation and is a mandatory requirement of the BS EN 60335-2-96 Approval Certificate.

PVB is available as required 1m x number of metres required or as a complete 1m x 25m roll.

Don’t forget to order 50mm wide x 25m rolls of Vysa-Bond SAT fixing tape.

 

Code Size
2553 1m x 1m = required m2
2460 1m x 25m roll