I'm pretty sure this is what he did:
1. The outermost (red) roof is just a row of regular blocks, two blocks thick and hammered on both sides.
2. Under that, there is a row of blocks just 1 block thick. For lack of a better way to describe it, it's hammered so that the sloped side of the block faces the inside of the house and the non-sloped sides face the roof. This leaves small triangular gaps that blocks can't be placed in. EDIT: A visual reference:
3. These gaps are filled in with walls (specifically, it looks like he maybe used palm wood fence?). Then everything is covered in paint so that it looks convincing.
P.S. That platform roof house is really clever.
Hello Eiv. I've been trying to recreate this house and I'm just wandering how to do the whole roof thing where it looks like the roof is clashing with the wood and i need to know the blocks used for it. Can you help me out?