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All in One Underfloor Heating Solution using Micro-Screed Technology with Heating and Comfort Cooling

Force drying Thermoplane

In common with other screeds it is very important that good curing conditions are provided as soon as a Gypsol Thermoplane screed has been laid. Adequate protection from rapid drying or draughts should be provided for the first 48-72 hours but thereafter the relative humidity of the building should be low to allow moisture release from the screed and facilitate drying. Failure to provide the desired conditions can prolong screed drying times considerably and may lead to delays in the construction schedule.

Reduced drying due to reduced depth - All screeds require a natural drying time prior to final finishes being applied to allow the screeds moisture to fall to an acceptable level, these drying times are normally quoted per mm of depth so the more screed is required the more prolonged the drying cycle.

Thermoplane drying times

Under ideal drying conditions (a warm, well ventilated room) a Gypsol Thermoplane Screed dries at a rate of 1mm/day up to a maximum thickness of 40mm and then at a rate of 1/2 mm/day for thicknesses above this:


50mm Gypsol Screed Drying time: (40mm*1 day) + (10mm*2days) = 60 Days (2 months)
Drying times can be improved by the provision of good ventilation, open windows and doors in good weather, the use of dehumidifiers and by force drying of the screed using underfloor heating.

Subsequent to drying the screed by one of the above methods the residual moisture content must be determined using one of the approved test procedures to demonstrate suitability for acceptance of floor finishes (0.5% for impermeable finishes such as vinyl, and tiles and 1.0% for carpets)

Once proven to be dry it is important that the surface of a Thermoplane screed is protected from accidental spillages and leaking fixings (central heating pipes etc). Should these occur the exposed screed will require further drying to attain the required moisture content and in the worst case, full saturation of the screed drying times will be as with freshly placed screed leading to possible delays in the construction schedule.
The information provided above is given in best faith as a guide to drying of Gypsol screeds and can be greatly influenced by individual site conditions.