- Joined
- 6 Dec 2020
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Hi all pretty new here but looking for advice.
See pictures attached I have a block and beam floor with insulation and concrete slab. The dpm wraps up and goes under the doors of the bifolds but doesn't carry all the way through to the outside.
I want to close the cavity off best and as sealed as possible at the moment underneath/Inbetween is polystyrene slabs that run through the cavity to stop cold bridging.
I am having floor screeded next week and I want to prevent it from cracking and moving and falling into the cavity potentially, any ideas?
My initial thoughts were to peel the dpm back and create a solid area with xtratherm and then concrete this to the level of the dpm, lay the dpm back under the door (as far as it will go) and seal this with expanding foam then it would be solid for the screed to be laid on top and run in to the frame of the doors to create the best possible seal
Tia
Adam
See pictures attached I have a block and beam floor with insulation and concrete slab. The dpm wraps up and goes under the doors of the bifolds but doesn't carry all the way through to the outside.
I want to close the cavity off best and as sealed as possible at the moment underneath/Inbetween is polystyrene slabs that run through the cavity to stop cold bridging.
I am having floor screeded next week and I want to prevent it from cracking and moving and falling into the cavity potentially, any ideas?
My initial thoughts were to peel the dpm back and create a solid area with xtratherm and then concrete this to the level of the dpm, lay the dpm back under the door (as far as it will go) and seal this with expanding foam then it would be solid for the screed to be laid on top and run in to the frame of the doors to create the best possible seal
Tia
Adam
