- 1). Install roofing shingles as far as you can safely reach from a ladder. Depending on your height and how far you can reach, you can install three to six rows before you need to install the roof jack brackets.
- 2). Lift up a shingle, directly in front of you, on the last row of shingles that you installed. Drive a nail through the decking and directly into a rafter. Leave 1/4 inch of the nail sticking up.
- 3). Slide the top hole of the roof jack bracket over the nail, and finish driving the nail into the decking. Insert another nail through the second and third holes of the roof jack bracket. Make sure that each nail goes into the rafter. A correctly installed bracket will have the flat brace bar with a lip on it facing up.
- 4). Move the ladder, and secure the second roof jack bracket six feet from the first one. Secure it in the same manner as the first roof jack bracket, and at the same height. Roof jack brackets must be installed every six feet to provide stability for the board.
- 5). Lay the 2-by-6-inch board on top of the roof jack brackets. Allow the ends of the board to overhang the roof jacks to keep the board from potentially slipping off of the roof jacks.
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