Any good to you mate? Not sure my dad did the last one. All about folding it then pinning it and folding it over to cover the pins. Depending on the drop of the drip edge depends on how much you turn. http://www.ikogroup.co.uk/SiteFiles...ature Library/Brochures/Coldseal-Brochure.pdf
If your no good with a gas torch, you have the option of using a GRP trim which you fix (screw or nail) to the surface and torch your felt too. You can either use a watershed or non-watershed trim depending on if you have an outlet on your pourch roof or a gutter fitted around the perimeter. Fairly easy to do a welted drip edge, depend on how far down your guttering is fitted if at all and how far your over hang is (you may need some wooden battens). You need; Drip card, this made from hard board and you can get it in different widths or you can rip down some suitable ply to the width you want/need Galv clout nails Felt primer to paint the hard board or suitable ply. Cut felt into suitable strips i.e. long enough to wrap around board/ply and lap onto the roof surface. F*ck typing it all out, pm me and i'll come over have a look to see what you need, source what you need from the yard if I have it, tell you what you need to buy if I don't have it and give you a lesson on how to install it or do it myself if your crap at it .