Rafters and Roofing
Rafters are laid over these beams and a birds mouth is marked.
Rafter to Beam Technique
These are cut on the workbench. I extend the vertical cut marks on some green painters tape.
Then I make my first cuts with a circular saw. The circular saw is used first as it makes the cut square to the face. These cuts are then finished with the jig saw.
Finished Birds Mouth Rafter Cuts
Now to attach these to the beams.
I find it easier if the two end rafters are attached to the beams with a small angle bracket.
Attaching End Rafters with Angle Bracket
The three middle rafters are attached by toe screwing. Over these rafters I laid three 1×6 boards as strapping for the metal roofing panels.
I did measure corner to corner of the rafters to see if my roof was close to being square. This is an important step before the metal panels are installed.
If not then your overhangs will not be consistent along the rake or eave. I didn’t have to make any corrections with the strapping so I was lucky.
Ready for Corrugated Panels
I use 4 foot galvanized corrugated panels for the roof. These are slid over the strapping, squared and spaced and temporarily clamped in place while I check my overhang before running in screws.