Featheredge boards - fixing method

[Jupiter01]

I've got 150mm boards that I am using to clad a shed. I plan to sue 40mm galvanised nails but have seen varying methods for where they should be nailed.
I plan to have a 25mm overlap with the boards and wanted to check if it is okay to nail them at the top of the board, in the section that will be hidden by the overlapping board.

I would welcome your advice on this.

 

[lostinthelight]

If you've got a 25mm overlap nail through the bottom of the overlapping board so it just misses the top of the underlying one , 28mm

 

[Jupiter01]

If you've got a 25mm overlap nail through the bottom of the overlapping board so it just misses the top of the underlying one , 28mm

So that I have this clear in my head, these nails would then (only just) be hidden by the overlapping board. Is that right?

 

[freddiemercurystwin]

Stainless steel nails would be better.

 

[lostinthelight]

So that I have this clear in my head, these nails would then (only just) be hidden by the overlapping board. Is that right?

No they wouldn't be hidden , hidden fixing wouldn't be practical with exposure to elements and as previous post, use SS nails

 

[Jupiter01]

If you've got a 25mm overlap nail through the bottom of the overlapping board so it just misses the top of the underlying one , 28mm

ah, just seen that 28mm. So a few mm above the overlap. As you say, the nails will then be visible