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.
Secure the Metal Roofing Panels
I’ve been told that the screws should be added at the peak of the corrugations and not in the valleys. As the roof may eventually leak if and when the rubber washers corrode and fail. There seems to be some disagreement out there about this. I find it’s much easier to install the screws in the valleys so that’s what I did here.
I’ve been told that the screws should be added at the peak of the corrugations and not in the valleys. As the roof may eventually leak if and when the rubber washers corrode and fail.
Temporary Clamps help the lone worker
There seems to be some disagreement out there about this. I find it’s much easier to install the screws in the valleys so that’s what I did here.
Last Roofing Panel
In the next episode coming right up, I’ll build the form, pour the concrete countertop, add the sink and shelves and finish the potting bench. I’m always interested in your thoughts, comments, or questions so please post them below.
Thanks for reading and watching. See Part 2.
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