I've had little time to work on the workshop in the last few days. I have cleared my old one, though, and brought everything up here. My storage is filling up.
Let's start with a couple of miscellaneous pictures from inside. First, the wood racks on the wall, which I am going to try to keep for new timber only. In other words, when I buy stuff for a project, this is where it goes:
I also fixed the shelves from my old 'shop to the wall, and filled them:

I have since made a sash clamp rack, a la Alan Hudson's design. Better than de-headed screws in the wall!
Right, to business.
Today I made a start on the outside of the external walls. You'll recall that the building has looked like this for a week or two:
My first task was to sort the DPC out, and to install an arris to drain any water that gets behind the boards to the outside of the wall. Fortuitously, I was only able to buy a really wide DPC, and not the one I had wanted. Well, this turned out to be a good thing.
Step one: cut the arris from roofing battens. Here's the jig:
Here's the idea:

You'll note that the top of the arris is quite close to the bottom of the sole plate. This was to prove a nuisance.
Ten minutes into slicing the battens up I was on the phone to Ian at Tuffsaws, ordering a few new blades. In the interim, I took my setting pliers to the blade I had, which is rather a tedious procedure when the blade is on the machine, but it was the only way I was going to get through 15 metres of diagonal cuts through wet and fibrous timber.
An hour or two later, I had a pile of sticks:
The first one in place. Notice that I have packed it out from the frame by 11mm, the thickness of a strip of waste OSB, to get the "edge" of the DPC closer to the edge of the bricks, so that if any moisture does find its way behind the boards it is deposited right by the edge of the plinth......
Here's the first section finished, with the DPC folded up over the arris, then taken up the studs. External corners are easy:
Then it's just a question of going all around the base of the building. It's great to be able to see the bricks again after they've been hidden by flapping DPC for weeks:
Internal corners don't work just with the DPC:
I love a bit of lead work!

I raided the scrap lead box, and made a couple of these:
Next on the list was insulation. I am using 100mm cavity batts, which only come in 450 widths, so there is a bit of cutting. The beauty of cavity batts is that they are relatively stiff, and so stay in place without slumping. This is as far as I got today:
You can't leave it like that overnight, in case a wind gets up or it rains, so I stapled on the building paper:
I now have a very blue shed:
Tomorrow, I finish the insulation and papering, then counterbatten on top of the paper (to form a cavity), and hopefully start boarding. There is more messing about at the top of the plinth to do before that, though.........