Mask it up to protect plastic and use foam. Foam sticks to upvc instantly so cover.
Few blasts of that and a few hours and all good. Window silicone around. Feet up
Thanks for the tip
Any DPC protruding from the reveal should be folded and tucked behind the frame, not cut.
When you say "behind the frame, where do you mean? I can't visualise or figure it out, sorry.
why?
Do you think otherwise?
Cheers