the wax sheet will work to give you a part to fit over the edges of the original roof, i think it would be a lot easier to mould the roof then replace the whole thing.

the returned edge along the gutter would really be in the way for either way, would have been nice to keep it though, maybe just bent it out of the way then tapped it back with a hammer and dolly.

good luck with it dude, i've seen it done on mk4 escorts

Haha, it's older than me! Still love it though.

been a long time since i worked on a mk1 golf lol.

personally i would take the mould into the gutter and use that edge to bond to the shell, going into the tailgate aperture is not a problem just remove the tailgate. as for the front screen pillar's there is a factory join near the gutter line which is brazed, once the replacement skin is made you could clean off the original skin along with the brazed joint and bond to that as it would give you a nice flush fit with the screen pillar.

do you have the gti/campaign screen pillar moldings? they would look pretty cool in cf also,

good luck with dub should look pretty cool

It's for a mk1 golf. Unfortunately the roof skin is massive pressing on it and is joined at the edges by folding over the side panels to form the gutters whilst at the front and back it's spot welded under the windscreen rubber and inside the boot shut so a direct replacemt would be virtually impossible.

what car is this for? does the car have a seperate centre roof skin ie: with a roof moulding along each edge to cover the join? if so i would take a mould direct from the roof, then drill off the original roof and replace with the cf one. i wouldn't mess around with wax sheet on such a large area.

we curently have a couple of m3's in at work which have cf roofs on them and they do flex a little when pressed, these are bonded directly to the shell and the two mouldings fitted along the sides to cover the join. bmw do have a special glue they use to bond the cf roof to the car along with some fancy clamps made just for the job.

i was thinking of using a layering it:- cf,foam core,cf and at the edges an extra 3 layers of cf tape, not sure if that would be sufficient.

I'm currently working on a project of making a CF roof skin as a replacement to the original. The original will be cut out leaving a flange around the edge and the CF one will be bonded to this flange.