Rad-Seal Recessed by Timloc is a fantastic product that helps prevent the need for various other products such as electrical back boxes, intumescent foams or sealants, stopping multiple other expenses and wastage. It's crafted to work with 10mm plastic radiator pipework coming from the wall and is suitable to be applied onto studded dry-lined walls as well as plaster dab solid walls.
It adheres to the British Government's various requirements, including Document Part L and Document Part E. It has had its air permeability measured and verified by BRE at Part L's 50pa, which scored;
0.24m3 (h.m2) under positive pressure test conditions
0.30m3 (h.m2) under negative pressure test conditions
