In part 9 of the garden room build, we tackle insulation, install the vapour barrier, and start on the wiring. Step by step, ...

or to establish expected floorcovering performance if the concrete slab has not been placed directly on a vapor retarder/barrier.” Ultimately, these floor slabs and their owners are best served ...

Do not use asphalt- or bitumen-type vapor retarders over radiant heat systems. Where a wood panel subfloor has been installed over a concrete slab, install a Class I impermeable vapor retarder ...