Drying of screed with underfloor heating - leak test?

Hello,

I had the screed laid on January 24th and until today, February 13th, no heating program for the screed is running. I am trying to dry it with a construction heater, but I think the heating program of the heat pump is certainly better suited? My floor consists of insulation (Styrofoam), then underfloor heating, and the screed.

My installer has not yet conducted a leak test. Neither for the surface heating nor for the water pipe. Is that allowed?

And what does your installer say about the screed already being laid? How does he intend to find any possible leak? About the screed: What kind of screed, and what does the screed layer say about the heating-up program?

This is an anhydrite screed. The screed installer said it can be heated to 25° right away, but the heating engineer doesn't arrive and is dragging it out. The heating engineer had approved the date for the screed. He said he would easily be finished by 24.01. But he completed the underfloor heating at the last minute.

Well, what doesn’t work simply can’t run

You surely have properly notified the heating engineer of the obstruction with a deadline...
You do realize who pays for the damage if a leak occurs now

Hello,

I had the screed installed on January 24th and until today, February 13th, no heating program for the screed is running. I am trying to dry it with a construction heater but I think the heat pump’s heating program is certainly better suited? My floor consists of insulation (Styrofoam), then underfloor heating, and then the screed.

My installer has not yet performed a leak test. Neither for the surface heating nor for the water pipe. Is that permissible?

The fact that he didn’t do a pressure test is really crazy... do you know if he installed connectors?

The screed should first rest for 27 days without being heated (concrete only cures after 27 days… achieving full strength). After those 27 days, you start heating, preferably first at 20 degrees, then raise it by 5 degrees every day up to 50 degrees, then keep the 50 degrees for 2 days and afterwards reduce by 5 degrees per day again. The 5 degrees are not the room temperature but the temperature of the water flowing through the pipes! (there are pipe thermometers for this) Cracks can form, but that is normal; you call the screed company, they will seal it (free of charge) (at least that’s how it was with me).