Roofing slate sizes

[Triassic]

I've had a couple of roofers out to look at pricing a new slate roof, the planner wants random width, deminishing course, so as to fit the local vernacular. Having got the quotes back they talk of slate sizes - 18s, 16s, 14s and 10s. Could someone enlighten me on what size these numbers equate to?

[Pete]

These refer to the slate length in inches. A row of 18" slates followed by a row of 16" slates, that is your diminishing courses as specified. Larger ones at the bottom!

[Triassic]

Was anyone got an details on how to set out a deminishing course roof?

[Construction Channel]

its quite a read but this should cover it, 

http://www.traditionalroofing.com/TR5_diminished_course.html

[Triassic]

Ed, thanks for the information link, very useful.

 

Has anyone got any suggestions as to how much I can expect to pay for slating a roof area of 68m2. My first quote suggests a price of £2200, it sounds a lot to me!

[PeterW]

Is that labour only ..? And that's the plan area or the roof area..?

 

If that's £30 / Sqm for membrane, batten and slate then that's not that bad for a diminishing course layout 

 

 

[Triassic]

Peter, the price is just for the labour, all the materials are supplied by me.