If the pieces don't adhere naturally, use a dab of water on the underside of the shingle before attaching it. Attach the pieces to the roof beginning at the bottom edge and working upward (Image 5). Serrate each piece with a toothpick or the back of a knife (Image 4).
Gather the gingerbread pieces (Image 1).Stir well until mixture is melted smooth and no lumps remain.