it looks like some kind of concrete single roman tile, not sure which one. is it deffo flat coming down from the roll, if its curved it could be a Marley anglia
they give a feathered edge if you cut on the back of the slate, cutting on the back gives the feathered edge on the front of the slate.
am not avoiding your lap questions, just sometimes it is difficult to work out what people are asking without actually seeing the job.
I am not wishing to spam here, but feel free to call me spanish slates, I can offer a very good quality spanish slate, delivered to you.
Graeme 01914103683
You will always get differing opinions on what product to use. Some roofers prefer what they have always used ie. felt. some try to get away from hot works. I wouldn't say one is better than another if installed correctly
If your rafters are no more than 450mm appart then 19mm lath will be fine, personally I would still go for 25mm lath though. We sell a felt called "maxi" which is perfect for what you need (not cheapest but not as expensive as others). You will need 30mm slate nails, alloy or copper is your...
They look like 600mm x 300mm fibre cement slates, maybe eternits. Colour looks bad andseem to be curling. Par for the course really with etetnits. We wont sell eternits anymore because of the colour issues
Last build up i used was osb, then vcl (torch on underlay), then foil board insulation, more boards then epdm.
What about using an insulation board faced with ply, and adhering that to the vcl. some spray pu adhesive would normally do that
Comparing prices up here, can normally do a strip and recover for similar prices that the gypsies, tramps and thieves charge for washing/sealing a roof