flat roof ext to join 1yr old flat roof

24 Aug 2006
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United Kingdom
Hello, got a bit of a head scratcher. Currently doing an extension which will have a flat roof which is to join to another flat roof extension. The existing roof was only done a year ago. I know how to lay felt, but how do i go about merging the to felt roofs together, how would i join the felt roofs. the existing is normal style, facia with felt over hanging. Do i bend the existing felt up and over lap it onto the new structure and then over lap my new roof felt onto that, or is it simple and i'm making hard work for myself. I know how to build the roof and join it, it is just the joining of the felts thats got me stumped. Any comments will be greatfuly received.
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Geuss its somthing i'll come across again so i would like to tackle it my self idealy, but great tip any how :confused:
What if i was to do the new flat roof as normal, but to bond the two roofs maybe put a three layer strip overlapping them. What do you think
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dean, all due respect and all that. i've been in the trade 24+ years. there are a lot of jobs i would tackle and a few i wouldn't touch with a pole.

flat roofing is one of them. i have seen it done and been involved a few times and could do it myself. but it just ain't cost effective to do it yourself.

why you want to be messing around with all that hot pitch is beyond me.

anyway, what you have suggested sounds ok. ;)

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