Top off your house with a tiled roof
Gabled, hipped or L-shaped: lay your tiles and they join up on their own at the corners and in the valleys of the roof.

To top off your house, place a roof slope, turn it to face outwards and carry on along the row. Neighbouring tiles join up by themselves, whether at the corner of a hipped roof or in the valley of an L-shaped house.
That means there is no corner piece to hunt for in the catalogue. Build next to a tile you have already placed, and it changes shape to follow the new row.
Work your way round the house
Each slope takes one of three shapes: straight along a wall, inner in a valley, outer on a corner. On a hipped roof, outer corners close off both ends. On an L-shaped house, an inner corner joins the two wings. Roofers call that dip a valley.
The catalogue has six kinds of roofing. They all fit together the same way, so you can swap tiles whenever you like and the joins will follow.

Not happy with a join? Take out a tile at the edge of it, then put it back. Its neighbours switch to the shape that matches your new layout.
Look up from the garden
A roof is also seen from below. At the end of the house, the triangle of the gable is filled with the material of the wall holding it up: planks above planks, stone above stone.
The tiles stick out a little past the walls, with a darker edge to show their thickness. Along the top, a row of ridge tiles covers the spot where two slopes meet back to back. From the path, your roof looks as finished as it does from the sky.
Climb up on the roof
Your character can walk on the tiles. Each slope climbs like a small staircase of four steps, and the surface under your feet follows the valley or corner you can see.
Head up to the ridge: from up there, you can see the whole village!
Ready to roof your cabin? The tiles are waiting in the Cabane catalogue, and the Build page covers the other building tools.