We have got a flat roof car port. I understand these things only last
ten years. It's beginning to leak in places and I've fixed the leaks
when they appear. However if you walk on the roof, there are odd
patches where it is not firm under foot, so you move along quickly! I
presume this is where water has got through the felt and rotted the
I think next spring it might be a good idea to tear off the felt and
replace the wood underneath.
What I was thinking is rather than replace it with another flat roof,
perhaps fit a batten to the wall of the house and run those sheets of
corrugated plastic to give a sloped roof. Can you see any problems
Would you bother putting wood over the joists? There's no need and it
would block any light coming through the plastic but OTOH if you ever
need to walk on the roof to decorate outside you would be able to, or
possibly it could be used for storage in the narrow space between the
wood and plastic. Or that space could be insulated, etc.
- posted 12 years ago