Hello,
We were originally supposed to use a calcium sulfate screed (Maxit). According to the technical data sheet, it has a thermal conductivity of about 1.83 W/mK.
The construction company now wants to use a product from Hasit instead: Hasit cement sulfate screed. According to its data sheet, it has a thermal conductivity of about 1.4 W/mK.
Our contract specifies calcium sulfate screed. Should we insist on that since it has better thermal conductivity?
Thank you.
We were originally supposed to use a calcium sulfate screed (Maxit). According to the technical data sheet, it has a thermal conductivity of about 1.83 W/mK.
The construction company now wants to use a product from Hasit instead: Hasit cement sulfate screed. According to its data sheet, it has a thermal conductivity of about 1.4 W/mK.
Our contract specifies calcium sulfate screed. Should we insist on that since it has better thermal conductivity?
Thank you.
A
Allthewayup31 Oct 2023 16:35se_na_23 schrieb:
It looks like the EPS will stay after all....
6cm EPS
9cm screed
All integrated with the room as one unit.
Is this acceptable or compliant with standards, especially regarding impact noise? So your 1,000-liter buffer tank is basically resting on EPS insulation? I can’t say if the 9cm (3.5 inches) screed can handle that, but according to our tradesperson, EPS insulation always compresses a bit.
Nine centimeters (3.5 inches) of screed takes a really long time to dry. Normally, screed thickness is somewhere between 45 and 65mm (1.8 and 2.6 inches).
As long as there’s no direct contact between the screed and the base floor or walls, impact noise won’t be an issue.
When comparing impact noise between EPS and XPS, you can basically ignore the difference—that’s more subjective. More interesting is the setup with the buffer tank. In my case, the entire utility room was insulated with 50mm (2 inches) XPS, and on top of that, I had 60mm (2.4 inches) cement screed without underfloor heating.
A
Allthewayup31 Oct 2023 21:08The pipes on the wall should have rubber buffers on the clamps; if so, that is acceptable.
You might want to ask your contractor whether the buffer on the EPS insulation is not a concern.
You might want to ask your contractor whether the buffer on the EPS insulation is not a concern.
Allthewayup schrieb:
The pipes on the wall should have rubber buffers on the clamps, then it’s okay.Good question – are those clearly visible?
Allthewayup schrieb:
You should ask your contractor whether the buffer on the EPS insulation is acceptable.That’s what the company said... maybe because it’s already finished... Is there a regulation for this?Similar topics