Ready to hire?
Post your job in minutes, browse real reviews and choose who to speak to.Post a jobNeed some tips or advice?
Ask a questionCarpets, Lino & Flooring
Cracks appearing in 70mm screed floor over UFH
Anonymous user 03/03/2024 - 3.20 PM
We had the whole of the ground floor of our house screeded (130sqm) on top of UFH in October 18. 7 cracks have started to appear in various locations all but one starting from a doorway or pillar corner and the other one going from one wall to another width ways. 3 of the cracks can fit a 2p piece inside though none of them are straight. The UFH was turned on 3 weeks after the floor was laid for few hours each day. Is this normal or acceptable or do these cracks need to be filled with an appropriate material?
Are you a tradesperson and able to answer this question?
3 Answers
GB Projects
Rating: 5 out of 5
It does happen when there is screed above ufh
But I usaly wait up to 5 weeks to turn heating on
If the floor still feels solid I wouldn't worry about it
Answered6 January 2019
0
CJS Wood Flooring Services
Rating: 5 out of 5
must have turned heating on full whack. heating should be switched on low and raised very gradually for first few weeks..
Answered7 January 2019
0
PAUL BROWNLESS FLOORING SPECIALIST LTD
Rating: 5 out of 5
a general rule is that concrete requires a drying time of approx. a day per 1mm. so in theory it should have been left to dry naturally for a minimum of 70 days then slowly increase the UFH to normal levels (18 - 24 degrees) over a 24 hr period.
If you are still unsure of the resulting cracks then I would get an site engineer to look at it?
Answered24 July 2019
0