Highlighted area indicating perimeter expansion joint

Similarly to the rods and mortar system, the perimeter joint must be siliconed. It is critical that the perimeter edge between the glass block and the edge of the Easifix sleeve or wall is not grouted in glass block mortar. If the joint is bridged, this will not permit the natural expansion and contraction of the panel.

Expansion and contraction within an Easifix glass block screen is allowed for by the overall construction being manufactured from UPVC combined with silicone.