Over the last few days, we have been cutting, slicing and routing a whole series of timber pieces that will provide the fixing points for the ends of the roof rafters up on the Steel I-Beams.
There are three basic sizes for the different parts of the steel work as follows:
- 2 ends which has a 40 degree angle sliced @ 61 mm from a 75 mm by 50mm wide timber
- 6 lengths with a 32 degree angle sliced @ 117 mm into from a 150mm by 50mm timber pieces
- 8 lengths with also a 32 degree angle sliced @122 mm from a 150mm high by 50mm thick timber.
The differences is the height of the slots that have been routed in. The end result is that when the roof rafters are placed into the slots, the top edge of the rafter all lines up, thus creating a levelled roof. The steel I-Beams comes in two sizes and thickness hence why we needed to have difference sizes.
Rafter-lower-supports-on-I-beams-1
Rafter-lower-supports-on-I-beams-2
We had to make a template to route the 10mm deep slots, all done at the correct angle, one at 32 degrees and 40 degrees.
Now we need a dry day to go out and fix these pieces on to all the steel I-Beams all the way around. We will align up each piece using our laser alignment module (this sits on the top of the walls on a leg and the laser sends a beam up to the steel work). But first, we would have to clean the bird poo off before gluing and clamping the timber into place – grin!