With Liquid screed the minimum depth is 35mm with our Flow Xs
You can install the screed 20mm above the top of the pipes with Flow HTC
You can walk on the screed in 24 hours. For the screed to receive floor coverings it drys at 1mm per day up to 40mm, then 0.5mm per day after.
You can force dry after 7 days with a dehumidifier or underfloor heating. Read our drying guide here
Yes, not only to check for potential leaks but also to stop the pipes from floating in the screed.
You only need to sand the screed if you are sticking any flooring down. Its good practice to sand so you can remove any plaster and construction debris.
All screed should be primed before using either self-levelling or adhesive. This is to stop the products being sucked dry.
Bay sizes can be up to 40m with liquid and 8m with traditional.
Yes, you can as long as the joists have been engineered to take the weight. See our guide here.
Yes, this is required for all ground floor construction but is also needed to stop the screed lifting the insulation and creating cold bridges.
We would be happy to discuss your requirements or answer any questions you may have.
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