ᐅ Drying Time for 55mm Calcium Sulfate Screed CAF-C25-F5 Installed Over Underfloor Heating?
Created on: 30 Jan 2018 23:31
H
Hexle82Next week, the flowing screed CAF-C25-F5 will be delivered for our old building.
The floor structure is as follows:
15 mm (0.6 inches) floor covering
55 mm (2.2 inches) flowing screed over underfloor heating
25 mm (1 inch) system tack board
30 mm (1.2 inches) leveling insulation (EPS).
We have 30 cm (12 inches) brick walls (dried for 50 years ), plaster and concrete work were completed about 5–6 weeks ago, so the residual moisture should be “tolerable.” I can measure it if needed.
In total, it’s 140 m² (1,507 ft²) over 2 floors with large window areas, so cross-ventilation for a high air exchange rate will be possible. If necessary, the neighbors would have to help with ventilation. How long would the current drying time be under optimal ventilation conditions? I could also arrange a construction dryer if needed.
I read a rule of thumb somewhere that goes d²*1.6, which would be 5.5²*1.6 = 48 days...
How many liters of water do you actually need to ventilate out with 55 mm (2.2 inches) screed? (That would be about 7.7 m² (83 ft²) of screed).
The screed installer will come next week and explain everything in detail, but I am already very eager, as the planned move-in date is tight.
Thank you very much!
The floor structure is as follows:
15 mm (0.6 inches) floor covering
55 mm (2.2 inches) flowing screed over underfloor heating
25 mm (1 inch) system tack board
30 mm (1.2 inches) leveling insulation (EPS).
We have 30 cm (12 inches) brick walls (dried for 50 years ), plaster and concrete work were completed about 5–6 weeks ago, so the residual moisture should be “tolerable.” I can measure it if needed.
In total, it’s 140 m² (1,507 ft²) over 2 floors with large window areas, so cross-ventilation for a high air exchange rate will be possible. If necessary, the neighbors would have to help with ventilation. How long would the current drying time be under optimal ventilation conditions? I could also arrange a construction dryer if needed.
I read a rule of thumb somewhere that goes d²*1.6, which would be 5.5²*1.6 = 48 days...
How many liters of water do you actually need to ventilate out with 55 mm (2.2 inches) screed? (That would be about 7.7 m² (83 ft²) of screed).
The screed installer will come next week and explain everything in detail, but I am already very eager, as the planned move-in date is tight.
Thank you very much!
B
Baumfachmann30 Jan 2018 23:58Calcium sulfate self-leveling screed can be heated after just 7 days. However, it is advisable to consult your screed installer and not rely on anyone from the forum.
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