SlabShield Insulation is only 11mm thick and has been designed specifically for use with underfloor heating systems. It is ideal where there is restricted head on refurbishment projects. SlabShield is flexible and lightweight but tough enough to deal with the normal job site activity. SlabShield Insulation has innovative interlocking tabs that provide a perfect seam when using several rolls side by side. The edges are overlapped and taped to maintain a VCL. VCL – Is a Vapour Control Layer (VCL). Moisture Vapour Transmission Rate (MVTR) > 2000 MNs/g. “We usually used SlabShield with 50mm of QuinnTherm. We ran out of SlabShield on our last project, so we got some doubled up the foam insulation. When the job was finished, and we turned on the Under Floor Heating the areas with SlabShield heated up much quicker than the areas without. Not only is SlabShield easy to work with, but it seems to make the underfloor heating a lot more responsive.” – John S, Dublin, Ireland