refelting garage flat concrete roof

Hi guys, I am looking at replacing a large concrete roof. The concrete roof is installed in slabs each around 4m long by around 80cm wide so a crane will be able to lift the slabs once the felt is removed. Want to replace the roof with a steel roof (pics attached of the current roof). Theres 5...

Hi I've got a small garage on the side of my house that needs refelting. It's a concrete flat roof which connects to the neighbours garage. What is the best method to refelt this on myside? I'm thinking of going with a 2 ply torch on, with the cap sheet being torch on mineral felt. Any tips on...