Setting Out A Roof

Pitch is the amount of angle or slope the roof has.

Setting out a roof.

Measure as precisely as possible down to the 1 4 inch 0 64 cm 1 8 inch 0 32 cm or 1 16 inch 0 16 cm. Setting the first trusses. Roof trusses arrive at the jobsite on the bed of a large truck. Every step of the truss installation follows explicit instructions from the manufacturer.

Because the trusses are heavy and. This is denoted two ways a 1 3 or 1 4 pitch in fractions and a 6 12 pitch in inches which means the roof rises 6 inches for each 12 inches of run. A framing square is traditionally used for laying out the roof and determining pitch. Use a pencil to jot the width down somewhere.

Write on a spare sheet of paper or a section of exposed wood. Place the 4 6 common rafters in their designated positions along the 2 longest walls and nail them firmly to the wall with a nail gun. For example the width of the building may be 72 75 inches 184 8 cm.