How To Make A Curved Roof Rafter

Mark and cut the first rafter ends the first step in building the roof rafters is to cut one rafter board to length with the ends angled properly and then to mark and cut the birds mouth and seat on the rafter.

How to make a curved roof rafter.

Next set the framing square on top of the rafter beam and use a pencil to trace the outside edge of the framing square s tongue. The ridge end of the rafter and often the eve end will need to be cut to the angle of the roof slope. Pitch you want then cutting arcs in 5 8 ply making templates for your transition depending on how much curve you want. Once you ve marked the lines use your pencil to draw the diagonal length on the rafter.

Start with the 60 grit and go over the whole length of the ceiling rafter that you ve just cut. Curved kerto lvl forms the oval opening for the track and field area. You saw the curved rafters in a back issue of fhb. If my memory is correct it was the cover shot and entailed scabbing a new tail to the standard straight rafter at the min.

Curved rafter 9 enough clearance for roof sheets to drain into the house gutter fix bracket as close as possible to the base of the gutter rafter strengthening bracket outback roof sheet 150 attachment beam 8 10 beam capping clearspan only beam channel clearspan only 150 attachment beam spacer nut rafter strengthening bracket. The use of kerto lvl enabled greater architectural liberty allowing wide spans and optimising the wooden structure itself. In clamart project kerto lvl replaced glulam which is generally used for building long curved beams. There are 6 slightly larger curved braces that stiffen the structure side to side and add support to the rafters.

To cut roof rafters start by fixing the stair gauges on your framing square to the dimensions of your pitch. Fourteen curved rafters are attached to a 6 6 beam and a 2 by 9 1 2 ridge beam. Use the 60 grit to make sure the curve dimensions are exactly what you want. In a fink truss the internal joists are arranged in a w shape ensuring even weight distribution from one end to the other.

If not the 60 grit will remove wood more quickly than the 150 will to bring out the desired curves. The final layer could be 2x 1 4 or kerfed 1.