My kitchen extension currently has a flat felt roof which continues onto my
neighbours kitchen extension. As the felt is now defective I would like to
change it for a pitched, slated roof. My neighbour however is unhappy about
my builder having to get onto his portion of the roof in order to complete
my new roof. Am I right in thinking that the "Party Wall Act" provides me
with right of access to my neighbours property in order to carry out work on
my own? I'm trying to resolve this with him in an amicable fashion and
have offered to pay for any damage that may be caused but wanted to know
what my legal rights are.

Also, is it permissible to adjoin a pitched roof to a flat roof?

Would this have been better posted to a UK legal type ng?

Regards,

Trevor.