Strip off the old roof and re-deck with 3/4" ply. Take the bottom layer of tiles off and ply up to baton.
Fix edging strips around the roof.
Glass around the edges of the roof with strips of glass, then glass the middle. 2 layers of 450gms
Sand over the roof and cover fascia boards ready for the flow-coat.
Flow-coat around the outside first, then remove cover on the fascia boards.
Flow-coat the middle. Leave over night if possible before replacing the tiles.
We can do the Fibre glass layup for you or you can buy the materials from us.