John Kelly wrote:

Bit confused over this.

Plans we have for our house show the angle of the extension roof to be
about 20 degrees. Looking on the http://www.sandtoft.com/ says that the
minimum roof pitch would be 30 degrees which is quite a difference and
makes the extension room more of a corridor, and hence not a lot of use.
I have to say that the plans were drawn up by an architect over 6 years
ago by the previous owners who divorced each other rather than doing the
extension.

Maybe I'm looking at the wrong website for the roof tiles we've got - I
don't really know which ones they are but they do look like old english
pantile according to the website pictures.

Anyone any advice on just how low you can go with roof tiles?


Very low. Sub 15 degrees with machine made interlocking tiles, however
careful laying is necessary.


40 degrees is a practical minimum for slate or peg tiles. I wouldn't
consider pantiles at anything less either.

Below that you really need to be careful, overlaps may need increasing,
or maybe even a roof of plywood covered with waterproof membrane and the
roof material more decoration than weatherproofing.

Consult a good architect.





Thanks