New natural slate roof - up to scratch?

[lgyvtnlg]

Hi all

I'd really welcome your advice. Whilst I am having a loft conversion I decided to have the front roof replaced as well. It's been done, but it's not as neat as I was expecting. So the question is, from a man who knows relatively little about roofs or slate, is it up to scratch and/or is there naturally something in the shape of the slate that means they don't always lay flush?

Is this ok or should I complain and have it rectified? I haven't paid yet...

Many thanks in advance.
Toby

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[oldbutnotdead]

Looks like your roof is a bit saggy- purlins dipping in the middle? You might want to have a look in the loft and see how straight they are. Or has your loft converter removed some structural elements?

I'd be a bit concerned about the flashing- it looks like flashband and even if it is lead it is normal to use soakers and a vertical cover flashing with slate. Could be worse, at least he hasn't put a mortar fillet in.

The slating looks OK to me once you get away from the dip between the parapet and the Velux. Natural slate isn't precisely uniform so you'll get some humps and bumps- a good slater will sort into thick, medium and thin and lay them to best finish.

 

[terrypin]

Pretty much as above.
The bond isn't the prettiest and some rows are a little off centre but that doesn't mean it's wrong, just a tad untidy.

 

[catlad]

It looks out of balance to me with those large windows, I would be a little concerned about the removal of such large part of the roof structure.