Old Wood Shingles

[MrWiggle]

Does anyone know how much the old wood shingle cost to buy and how many roughly in a square meter.

Not after the new shingles, only the old recycled ones.

Also what is best to put under them for waterproofing ?

I have seen metal sheet, both flat and corrugated. Also seen something like marine ply and then a layer of silver sheet over the top. Something that works and is relatively cheap.

Thanks

[MrWiggle]

Well, they are 15 baht each i am told by 3 shops now.

Still to checkout a couple of more isolated shops, but at 15 baht each and around 50 per sqm, that is expensive.