Reassembly of the hexagon and roof frame

 

With the floor done it was now time to begin to reassemble the corner posts that would support the hexagon roof frame. The elevator would come in very handy for this task. Here are the corner post loaded and ready for transport to the top.

OK, The corner posts are attached to the floor rim joist with four GRK screws and then a 2x12 header placed between them at the top. The header is fastened to the posts with 4" wide nail plates and screws. 

Here the nail plates that hold together the posts and headers can be seen. Not visible are the hurricane straps that are wrapped around and over the rafters and fastened to the outside of the header. Also in the picture, between the nail plates is the temporary blocking  at the end of each rafter subassembly section that helps position it. This was key to the assembly process for a roof frame like this. To the right can be seen the upper pulley that was used to bring up each roof subassembly frame. This could not be brought up in the elevator because of their size.

The rigging of a second class, moving pulley, made the task of lifting up each of the roof frame subassembly a snap. Two guide ropes were attached to the bottom corners of the frame and ran through junk brake rotors on the ground. These kept the frame from twisting around as they were raised to the top. Also the extra length of the sling from the pulley to the frame gave me the slack I needed to lift and twist the frame up onto the floor deck. Made the whole thing a one person process.

Things are really starting to take shape now. The first two sections of roof frame are up and in place. The 12 sided center pin where the rafter sections meet at the top is held up by a set of temporary supports.

With the roof rafters in place it was time to sort out and pair up the 12 roof sheathing pieces. This was a puzzle and even though the parts should be the same there was some "uniqueness" to the individual parts that came about in the process of making the six sided form. Anyone that has ever built a Gazebo knows what I am talking about. If you haven't you will the first time you do one.

Pairs of roof sections could be loaded on the elevator and brought to the top. C-clamps were attached to the edges for grip and helped to get the pieces up through the roof frame and in place.

One sixth of the "pie" was on. I would work my way around the roof going up from the inside and screwing down each piece of 1/2" OSB to the rafters.

No doubt about it. With half of the roof covered progress continues and should be having a drink high above Cabin #6 in a week or so. You can see two of the windows for the treehouse leaning against the cabin.