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Showing results for tags 'retrofit ufh'.
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Hi, First time posting so apologies if I break any rules or social norms... We are looking to install a retrofit UFH system to our bedrooms which sit on top of an uninsulated/unheated garage space below. Current floor buildup is: - 150mm precast concrete beam floor - 38mm screed topping. No space to add insulation above the slab without having to raise external glazing that goes to floor so current plan is to insulate the soffit with about 150mm PIR (max. before restricting head height of garage below) and replace the 38mm screed topping with the following: - 20mm retrofit UFH (Wunda rapid response) - 7mm Wunda duoboard - 11mm UFH compatible carpet underlay - low tog Carpet I appreciate that this will likely mean a less responsive UFH system as it will be heating the 150mm slab but hoping the insulation below will still retain enough heat to make the system effective. Really just looking for a critique of the above plan, any thoughts or suggestions welcome.
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Hi - I'm extending my kitchen/diner and want to install UFH. Its extending by 50%, so will have half existing concrete floor and half new floor. The floor in the new bit is yet to be done. The cost of digging out the existing floor is a LOT - I'd like to avoid this if i can. A couple of companies I've seen advertised lay UFH into existing concrete floors by cutting channels and laying the pipe inside. The house was built in 2002, so the existing floor (should) be reasonably well insulated. Example companies: https://www.outsourcedenergy.co.uk/in-cut-underfloor-heating/ and https://www.jk-gb.com/jk-in-ground-ufh.php Has anyone had any experience of this method? -
Hello, just trying to get my head round wet UFH in our conversion: The concrete is rough and unlevel in places so I'm hoping the screed will even things out, there is approx 200mm available in some places, but it varies. I'm planning: 10mm slate floor 65-70mm screed 100mm PIR The electrician has put the ring main on the floor so need to tuck the DPM under it. Is this ok touching the PIR? I read EPS can degrade plastic?? DPM ?? 10mm sand blinding?? or EPS?? Which sand is best? original rough concrete slab with a slight slope Which diameter of UFH pipes and which spacing is best to be the most flexible? Going to start with a Willis heater and save up for ASHP, but might need a boiler . Thank you!
