How To Roof An A Frame

Start by installing self stick underlayment on the decking.

How to roof an a frame.

Stick framing combines roof rafters with ceiling joists. The high end of the rafter sits on or attaches to a ledger plate attached to the existing wall. The rise or height of the roof at its peak is the altitude of the triangle. The resulting angle forms the pitch of the roof.

You can determine the length of a common rafter using either of two easy methods. And the line length measurement from the roof peak to the building wall is the hypotenuse. The run or half the building span is the base of the triangle. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

To create the pitch of the roof a single piece of wood called a ridge beam is placed along the length of the home. We will go over raft. Hoist the trusses onto the roof. Once the ridge beam has been positioned in place and supported by roof framing members you can determine the placement of a rafter by measuring down from the top of the beam y height and making a mark on the beam.

This can be done either with many pairs of hands or with the assistance of a crane. Then fold the flashing over the peak and cover the cut ends with self stick underlayment. This video covers one of the most exciting parts of roof framing installing rafters. The lower end is done the same way a skillion or shed roof is.

To frame a roof start by choosing a roof style like a frame or gabled. Rafters are placed to the top plate of the second floor and joined to the ridge beam. Use ladders or scaffolding if you are building the roof onto a building that is still a frame. Cut the flashing back to the peak along each crease.

Next use these calculations to determine how many rafters you ll need for your roof and cut them to size. Roof valleys channel a lot of water so they need extra protection. Trusses are often spaced 12 16 or 24 inches apart. Lean to shed roof framing a lean to roof just means it s attached to an existing structure.

Like wall studs and floor joists rafters and trusses are spaced every 16 or 24 inches from center to center. The rafters are usually positioned directly above the wall studs. Then gather your measurements by calculating the run rise and length of each rafter segment in feet and the pitch of your roof in inches.