As per title, is there any way I could explain to the company I am buying the door from that I need them to use the proper system to wind/water proof the door installation instead of using pure white sealant? I really do not understand why this is a case still, in this day and age. So how does it work in the UK? Is this known practice? Gladly they knew about Marmox Thermoblocks and we are going to fit them under the frame, but I want to go step forward anyway. Any advice?
P.S. Hello everyone, long time reader, finally set myself up with an account
