Can't build roof?

[Alexg6464]

As the Subject says, i can’t build a roof. I have the two by fours available, my trusty Nail gun, and the nails available.
Also, i already have a wall next to it, but even though i’ve met all the requirements, the game just keeps that option grayed out. Why?

[i2amroy]

IIRC you need at least two wall or roof tiles orthogonally adjacent to the tile you want to build in, this means that for roofing over rooms you need to start from the corner.

[Alexg6464]

Thanks for the quick reply.