copper clout nails for clay tiles?

[mortarboard]

I am matching my old roof on a small extension and have 500 reclaimed clay tiles. I am planning on using 3.35 x 30mm copper clout nails to fix them to the battens. Could anyone tell me if I am using the correct nails and also how many of the tiles should be nailed?

Many thanks

[stoneyboy]

mortarboard,
If they are clay peg tiles you will have to use clay tile pegs (which are like giant nails) which hook over the top of the batten.
If they are all nibbed tiles you should nail the bottom three rows every 4 row and the top 3 rows.
You may find the battens are too hard for copper nails and you will have to use galvanised clouts.
end

[mortarboard]

Thanks for that stoneyboy

The tiles are nibbed. Someone else suggested the galvanised clouts might be more practical. When you nail a tile should you use two nails for each tile or is one the standard?