The Slate Roof is a roof you can build (the Slate kit).
In-game description
Overlapping slates under an iron ridge, an iron gutter along the eave and a tall stone chimney.SHOWN IN THE BUILD RING
Building it
It costs 2 
Stone, 1 Earth spirit. It needs 2 Jewels first. Take it down with DISMANTLE to get its cost back (see Building).
