ᐅ Delayed heating schedule for screed drying problematic?

Created on: 6 Oct 2017 16:46
L
lars-steina
Hello everyone,

The drying program for the screed was originally supposed to start on Wednesday. However, since the electrician has not yet installed the distribution board and the meter, the air-to-water heat pump cannot be put into operation. Stiebel Eltron does not allow a connection to the temporary construction power supply. Because of this, the drying program is delayed by about one week. My contractor advised me to set up electric heaters as a temporary solution to keep the building heated. He said that every day without heating is harmful to the construction. He also mentioned that the screed dries from the top down and moisture trapped in the lower layers cannot escape upward.

Two architect friends told me that these heaters are not necessary and that the delay is not a big deal—just that I would be able to move in a week later, which is not a problem for me. Oh, and I have been running dehumidifiers for the past two weeks, which also generate a little heat.

Could this delay cause any problems later on (such as mold or damage to the screed)?

I would appreciate hearing your opinions. Thanks and best regards.
Y
ypg
6 Oct 2017 21:01
The contractor seems to contradict himself.
His argument is that the screed on top dries too quickly, preventing moisture from escaping below. But then he suggests using heaters that make the surface of the screed dry even faster. Isn't that contradictory?!?

Mobile greetings from the road
N
Nordlys
6 Oct 2017 21:10
...and installs dryers. I don’t understand that. Karsten
M
Maria16
6 Oct 2017 22:28
According to our screed installer, heating should not be started earlier than 21 days after installation, but starting later would not be a problem. However, he advised against using construction dryers to avoid curling.

Therefore, I would consider the one-week delay relatively unproblematic.
M
Mike29
6 Oct 2017 22:49
Could it be that the schedule of your construction supervisor has been drastically changed due to the shift on your construction site?!? That is probably the real motivation.
KlaRa6 Oct 2017 23:06
No screed in the world requires a heat source (e.g., underfloor heating) to dry!!
L
lars-steina
7 Oct 2017 06:38
@Mike29: No, that’s not the reason, since I will be handling all the following work except for installing the staircase and interior doors. So, the screed shouldn’t be affected. Can mold develop if the house isn’t heated during this season? I should be able to see that, right, or does it only become visible much later? Okay, partly it’s heated by the construction dryers. Looking forward to your comments to reassure me that it’s not as serious as the building inspector suggests. Thanks.