Slate vs Clay

[Chris Miles]

Hi all,

I’m budgeting for a new build but trying to trim some costs. 
The design guide requires Staffordshire blue clay tiles but there are numerous local buildings have slate. 
I’m told the clay tiles are expensive so I’m looking at changing to slate if I can persuade the LPA. 
Has anyone conducted a similar comparison that they’d be willing to share ?

[SteamyTea]

Slate is a sedimentary stone, clay is a sediment.

Sedimentary stone/rock is basically clays and silts that gas been compressed, then often heated to a low temperature, basically how they make clay tiles.

So tell them it is the same thing.

[nod]

Slate is more expensive than Clay and will cost you more in labour 

[bassanclan]

Slates have to have two nails per slate (or use a hook system.

Plain tiles are nailed every fifth course, massive saving in time/labour. Also those tiles should be cheaper than slates