Step 7. The doghouse roof

Fix the 10 roofing boards (#9)(5 each side) to the rafters beginning with the lowest board. The roof boards are 1500mm (60") long and the doghouse is 1200mm (48") long, therefore the roof boards should overhang each end of the doghouse by 150mm (6"). The first roofing board should overhang the sidewalls by 25mm to 50mm (1" to 2"). Fix the rest of the roofing boards in place checking that all overlaps are even.