Trevor Smith wrote:

Could anyone tell me the minimum angle for a pitched, slated roof. We have
a flat felted kitchen roof at present and I'd like to change it to a
pitched, lean-to, type roof for better looks and relaibility. Also, does
location matter - we're in a seaside town on Cornwall where you tend to get
horizontal rain!




It is totally dependent on the tiles or slates used. I had one - still
got teh tiles if you want - horrid things - at about 20 degrees - wasn't
bad till the valleys strated leaking. So I knocked the house down and
built a new one.

Normal tiles 42 degrees is roughly it, but builders like 45 cos it

makes the maths doable by a gibbon with a CSE in Graffiti.


Thatch is 50 minimum.