There are various methods of floor construction with
Velta heating:
1) Basic construction with carpet over:
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Where nailed edge fixings are used to fix down carpet
care should be taken not to puncture pipes and consideration should be
paid when planning underfloor layouts. Ideally no heating pipe should
be nearer than 100mm from the wall edge.
Note: The use of carpets and underlay may require an increase in flow
water temperature because of the combined thermal resistance of carpet
and underlay. The thicker the carpet and underlay, the greater the insulation
value and the higher the floor surface temperature under the carpet to
compensate and consequently higher running costs with slower system response.
Natural materials for carpet and underlay are best. Refer to the
carpet manufacturer for specific details.
2) Ceramic tiles on thin bed adhesive:
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3) Ceramic tiles or bricks etc on thick bed mortar:
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A slip membrane must be used to allow underfloor heating
to expand without affecting the tiles and mortar.
