Decorate roof. Roll out fondant 1/16 in. thick. Cut five strips for each side of roof, 5 in. x 3/8 in. and two strips for each side of roof 6 ½ in. x ¼ in. Use icing to pipe two horizontal lines across center of roof. First, attach five shorter fondant strips vertically on roof. Next, attach two longer strips horizontally across roof. Use icing to pipe horizontal lines above the two fondant strips; pipe vertical lines in twos between fondant strips. Use icing to pipe zigzags on roof peak and attach candy. Use icing to pipe icicles on roof edges.