Can Kingspan Kooltherm K3 Floorboard and Thermafloor TF70 boards be laid below a concrete slab?
Kingspan Kooltherm K3 Floorboard and Kingspan Thermafloor TF70 can be laid below a concrete slab providing there is an appropriate damp proof membrane (DPM) (minimum 300 micron / 1200 gauge polythene). The DPM would need to have been laid over a well compacted hardcore, sand blinded with the joints well lapped and folded.
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- Can Kingspan Kooltherm K3 Floorboard and Thermafloor TF70 boards be laid below a concrete slab?
