Unless Europe has some miracle EPDM I don’t know about after 4 decades as a journeyman roofer; the walls, roof and chimney flashing will all fail within a decade. The rubber will shrink and pull off the walls, a product that Firestone, Versico aka Goodyear and Carlisle EPDM roofs mandate at walls is called RUSS strip and you didn’t install it.
It’s always hard to seal around a pipe on a roof that’s why we use liquid roofing systems, however to have used a liquid system on this roof would have been a little “over the top” 98% of the roof is flat and EPDM is the perfect materials for large flat areas.
I have converted the garage into a games room and the ceiling has damp patches and the fuse has blown for the lighting. The roof has a drainage hole in one corner which is not very effective , as I have previously seen water pooling on top of the roof. I would also like better insulation in the roof as there is a lot of heat loss and wind that comes through the ceiling light fittings.
Not only are we insulating this old felt roof, but we are also reversing the way the water drains on the roof; one side of the roof is going to be built up so that all the water drains in the opposite direction. In the attached photos you can see we’ve started to set up some of the insulation, and we’re working out just how this jigsaw puzzle goes together.
The builder has built a new side extension and we left the decking open ready to lay a new single ply EPDM rubber flat roof. Here is a series of photos along with guidance on lining the box gutter with EPDM.
The roof has been stripped and the insulation has already been taken up the scaffolding, ready to go down. You can see that the insulation has been laid out over the old decking and is being screwed down, ready for the finishing layer of EPDM single ply rubber to be laid.