We have a very attractive wisteria growing up a trellis on the side of
the house, and which grows at an incredible rate, such that I keep
having to get the ladders out and chopping it back at eaves level, where
it persists in trying to grow under the roof tiles and generally make a
nuisance of itself up there. This needs doing a couple of times a
season, at least; which is tedious, and unpleasant for a ladder-phobe.

I appreciate the obvious answer is to chop the beast back to about a
metre away from the eaves, and I was planning on doing that; however,
before I do so, I just wondered if anyone knew of anything I can maybe
paint over the roof edges and eaves which would discourage its advances?

Thanks
David