Cover the roof of front porch (which is to be tinned) with 4-inch matched pine (spruce) boards, dressed one side to a uniform thickness and free from large or loose knots or knot holes. To be nailed to every bearing with two 8d. nails, and all uneven places smoothed with a plane.
Cover all other roofs and all frame walls, including walls of bay window and dormers, with good sound hemlock (spruce, native pine) boards* not over (10 inches) wide, dressed one side, laid close together and nailed to every bearing with two 8d. nails. Boards to be set diagonally on the walls of house and horizontally elsewhere. Form crickets on roof, behind chimneys, to turn the water.