are these tile battens ok

That is terrible,you want the battens to line up for the tiles and bonnets to fit.

 

As Deleted member 11267 has already said!

 

This is a joke isn't it, if it isn't it should be.

 

Right bodge,Deleted member 11267 is spot on, you will have no end of problems.

 

When I had my roof done, the manufacturer/designer called in and talked it through with chippy. They suggested they did that to stop any problems. The chippy was reluctant and a bit off about it? Strange that. Anyway, he said after it was a good job they came. Maybe you should do same. Have a site meeting to walk through the problems and get back on track.

 

The battens also need to line up if you are using valley tiles, and from the photo it does not look like they are.

 

Like this.

 

A "carpenter" did that??? Aside from the shonky alignment, he's right royally butchered the battens

 

No that is not the setting out for 10x6 valley tiles.
That looks like a hip for some other type of tile.

 

Just used it as an example.

 

Completely replaced, most likely have to be new batten as well.

Had roof done here last year, roofer used ring shank nails to secure batten,would have been almost impossible to remove them, if they had to be removed.

 

I would also fit "valley boards". This will give something solid to fix the felt to and also support the ends of the battens. Even with valley tiles, I run an additional length of water proof material or felt along the valley boards just in case.

You may also want to consider where you are going to match the old tiles and new ones, try and keep one colour to one side - even if it may mean stripping some existing tiles so they match. It will look a lot better if it is all consistent

 

Looking at the pictures would agree too, Used valley board. Not getting the correct overlap with underlay there. Looks like good underlay too.

https://www.roofinglines.co.uk/prod...x-330mm-x-3m?gclid=CNew1diRyNQCFQe-7Qod2KsEbw

 

Looks like clipped nails possibly from nail gun. Galvanised ring shank is what roofer used here some years ago on roof at old house.

 

Most larger gauge nail guns use ringed galv nails. It will be a problem removing them as most roof battens aren't the best timber and as soon as you start prying them lose they will normally snap.

 

The roofer used a paslode gun.

Batten widths shouldn't be a problem. Just need to be set at the same laps as the 'plain tiles' used have nibs which hook over the edge before being nailed.