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Underfloor Heating FAQs

Do I need to have my heating on constantly?

You don’t need to have your underfloor heating on all the time, but during the winter, we recommend a low constant heat over sudden high heat in short bursts.

Can I see your solid wood floors laid over underfloor heating?

Please visit the links below to see Coppice & Crown solid wood flooring over underfloor heating and be inspired by our clients’ design projects.

https://www.ukhardwoods.co.uk/case_studies/the-old-bakehouse-dulverton/

https://www.ukhardwoods.co.uk/case_studies/granary-barn-stoodleigh/

https://www.ukhardwoods.co.uk/case_studies/five-oaks-north-molton/

Will underfloor heating make my floor crack?

Underfloor heating will not cause your hardwood flooring to crack or split, providing you keep the air humidity between 30% and 60% RH. If the floor’s surface rises above 27°C, then the air humidity of the room can fall below 30RH. Keeping the air humidity above 30% RH is essential to prevent damage to your solid wood flooring.

Will I get contraction gaps between summer & winter when using underfloor heating?

Wood is a natural material and is, therefore, always looking to reach a balanced moisture level compared to the relative air humidity. With an air humidity of 40-45%, the wood will reach an 8% moisture content equilibrium. If the air humidity drops to 30% RH (an extremely low humidity to live in), the wood will reach equilibrium at 6% moisture content, and a contraction gap will be visible.

Coppice & Crown wood flooring is kiln-dried to 9-10% moisture content. Underfloor heating will not cause contraction gaps. However, a high surface temperature can, hence why we reiterate the importance of keeping the surface temperature of your boards below 27°C.

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