Vertical larch cladding join

[chirpychippy]

Hiya,

I am installing vertical larch cladding, I am at the area of the building where I need to start joining the boards.

I am not sure what the best practise is for this joint, I have scrolled the Internet and can't find any info.

I am thinking joining using a 40 degree cut to both faces so the boards over lap, leaving a clean seamless joint, then nailing the overlap, or do I leave gap for expansion being larch is so unstable.

Really not sure, any help guidance would ease my over active mind please.

 

[Notch7]

The advice from the suppliers is just butt up tight.

You could use end grain sealer, which would be my recommendation.

personally I wouldn’t do an angled cut

timber does not expand in its length so that’s not an issue.

 

[chirpychippy]

Thank you very much notch7, yes end grain sealer has been supplied.

After I asked I thought the same, timber doesn't generally expand in its length.

Thanks for your help.