Sloped Greenhouse Roof Not Snapping To Wall

Im trying to place a sloped roof but it keeps on snapping to the floor how do i get it to snap to the walls.

Sloped greenhouse roof not snapping to wall.

And they dont snap to their short side only the long side. However i see 3 sloped roof tiles not supported by any wall or ceiling tile from within the structure. Or do i need to make the walls out of wood or stronger. It depends on which side the wall is and where you stand if the roof goes up or down.

Is anyone else having this issue or know a fix. Very nice one too. I put down greenhouse walls all around and now i just need to put on the roof. The triangular roof pieces work just fine.

Currently only have thatch walls and im getting irritated with getting it orientated right and no matter what button i press i cant change it. Engrams for greenhouse wall and greenhouse ceiling are unlocked at level 42 greenhouse doorframe and greenhouse door at level 43 and the sloped components at level 44. A ceiling atop pillars or snapped to an adjacent wall is sufficient. Only ramps snap to their short side not to the long side.

So this looks like a support issue. Im trying to build a roundish greenhouse and not put dividers all throughout it. You can build a wall up from the bottom foundations to the center of the roof tiles you re trying to place or you can try putting ceiling tiles across the center of the structure from one side of the roof. A greenhouse does not need to be considered enclosed.

Except the sloped greenhouse roof pieces absolutely refuse to snap to the top of the walls. Pipes can pass through the greenhouse walls. The greenhouse wall and greenhouse ceiling cost 30 engram points to unlock while all other greenhouse structures cost 15 engram points. Just place a few thatch walls to see how the roofs snap.

I m building a greenhouse. But not the basic. They keep trying to snap onto the foundation or even the side of the walls but not the tops where they belong.