Underfloor Heating and Screed in December

3 years ago

Hi, we’re in the middle of a barn conversion that’s water tight. We are at the stage of 1st fix plumbing which includes under floor heating.

My question is, the screed would go down straight after the UFH is installed, would the December temperatures damage the heating system or the screed? If so, if I put blow heating in the barn would I need this on permanently over the winter months? If this is the case, then waiting till the Spring to carry out anymore work maybe a more sensible idea ☹️ Looking forward to any advice.

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This type of project seems perfectly suitable for a warm-water underfloor heating solution contained within a standard sand and cement screed. We've received universally positive feedback from our customers about the comfort levels and running costs associated with this type of warm water under floor heating. In ground floor situations such as yours the insulation beneath the screed should be 70mm ‘Celotex’ or equivalent, or conform to Part L of the Building Regulations; so your 100mm of Celotex should be more than satisfactory to prevent downward heat transmission. A standard 65mm deep sand and cement screed would be applied over the underfloor heating tubing. If a reduced depth of screed is required, pumped liquid screed may be used down to a thickness of 50mm. If you would like any further advice on having warm water underfloor heating in your project please don't hesitate to contact us.
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Underfloor Heating and Screed in December

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