Hello,
we would like to convert our upper floor – currently, there is only the concrete ceiling. Unfortunately, the windows were installed quite low (bottom edge just 90cm (35 inches) above the floor). That’s why we want to keep the floor buildup as low as possible with screed, underfloor heating, etc. Therefore, my question is: what is the minimum height that should be planned?
we would like to convert our upper floor – currently, there is only the concrete ceiling. Unfortunately, the windows were installed quite low (bottom edge just 90cm (35 inches) above the floor). That’s why we want to keep the floor buildup as low as possible with screed, underfloor heating, etc. Therefore, my question is: what is the minimum height that should be planned?
D
Doc.Schnaggls18 Jan 2016 13:14Hello,
Unfortunately, I can’t tell you the minimum height you should expect.
Our floor construction (screed with underfloor heating) has a thickness of 18cm (7 inches) without the floor covering.
However, I have also read here in the forum about significantly thinner screed thicknesses with integrated underfloor heating.
Best regards,
Dirk
Unfortunately, I can’t tell you the minimum height you should expect.
Our floor construction (screed with underfloor heating) has a thickness of 18cm (7 inches) without the floor covering.
However, I have also read here in the forum about significantly thinner screed thicknesses with integrated underfloor heating.
Best regards,
Dirk
Well, it can be done much thinner.
One option is to use a dry screed system (underfloor heating embedded in a system panel made of 25 mm EPS plus 2 cm dry screed), which results in a total build-up height of 45 mm (1.8 inches).
There are also ultra-thin renovation build-ups with metal honeycomb panels where the pipes are embedded, the whole is then covered with leveling compound, resulting in about 1 cm (0.4 inches) of total build-up height.
Our own build-up is 14 cm (5.5 inches), but we had to chisel out the screed for that. It includes 8 cm (3.1 inches) insulation alone, a 15 mm (0.6 inches) OSB board, and then the mentioned 45 mm (1.8 inches) dry screed system on top. However, for the upper floor, no additional insulation is needed, so that’s just 45 mm (1.8 inches). While the 1 cm (0.4 inches) option would have been nice, it’s definitely more expensive.
One option is to use a dry screed system (underfloor heating embedded in a system panel made of 25 mm EPS plus 2 cm dry screed), which results in a total build-up height of 45 mm (1.8 inches).
There are also ultra-thin renovation build-ups with metal honeycomb panels where the pipes are embedded, the whole is then covered with leveling compound, resulting in about 1 cm (0.4 inches) of total build-up height.
Our own build-up is 14 cm (5.5 inches), but we had to chisel out the screed for that. It includes 8 cm (3.1 inches) insulation alone, a 15 mm (0.6 inches) OSB board, and then the mentioned 45 mm (1.8 inches) dry screed system on top. However, for the upper floor, no additional insulation is needed, so that’s just 45 mm (1.8 inches). While the 1 cm (0.4 inches) option would have been nice, it’s definitely more expensive.
S
Sebastian7918 Jan 2016 21:56How did you manage to fit insulation and a staple board above the 8cm (3 inch) screed on the upper floor? Or were there no pipes or cables on the floor at all (which I find hard to imagine)?
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