Good day, although there is not a lot to show for it, photographically.
First some pics of the disappearing RSJ:
That was Monday. Rather them than me. I was pleased that they restacked all the blocks they had taken down to use as supports. They were considerate guys. One of them even had steel toes on.
I then spent a couple of days doing stuff for other people. That's not a whinge, you understand, lots of people have been very kind to me and Ray is working like a trojan, it's just that it has held me up a bit. But what goes around comes around, eh?
So today I thought we would finish the demolition, but the problem is that we are running out of space to stack the blocks, so we have decided to hold fire on any more knocking down for the present.
Instead we have concentrated on working out exactly what we are going to do about foundations. The existing slab is substantial, 10" at the LH end that we can see and 6" at the front, we have revealed today. There was more concrete under the grass at the front and we have cleaned out the edge so we can see what we have. It just so happens that the front wall line of my new place is going to fall exactly on the front edge of the existing slab, and that is also the highest point of the existing concrete. Very convenient. So we set a block at the highest point and went round with a 6ft spirit level:
Those two are the same height as the datum block, so you can see how much we have to make up. Over 6"
It might help to have a site plan. This is a sketch, it's not to scale, but it shows what's happening.
The
red rectangle is the existing shack, hard on the boundary at the left and only about 250mm from the rear boundary, which is not fenced at the mo.
The
green square is my new sanctum sanctorum.
The
dark blue is existing concrete, the X-area is to be removed because it is too high.
The
light blue is new concrete to be laid, at the levels of the existing slab.
The
orange is a new path which will actually go the full width (not only as shown), but I'll use slabs and do it after everything else. We can have a French gravel drain all along the front of the building and then the slab path, canted away from the building.
The
grey is the existing path back to the house. I think this all means that there will be a small step down from that path to the path along the front of the workshop.
So this is the cunning plan. Dig out for the new concrete. This means removing a rubbish dump to the right of the building. I've made 3 trips to the tip today to get rid of broken glass and I haven't finished yet.
We can lay the RH area so that it falls an inch away from the building. That means all the concrete around the edge will shed properly. The X-area slopes towards the building, which is why we are removing it.
Then we will build a perimeter wall, which will vary in height from just a bed of mortar along the front edge up to a good 6" along the back. This will be our level. We can then fill this area with crushed blocks (which is why we don't need to knock any more down for the time being) and pour a 2" screed. We will then have a level slab 2" or so above the front edge of the existing slab.
Then we lay a sole plate all the way round and build up from that.
Easy-peasy.....
The existing slab will provide the access path to the left and rear of the building and it will all shed away from the new one.
People round here are keen recyclers. I've had two neighbours ask me what I'm doing with the steel roofing sheets (answer - NDN is having a few and I'm keeping a few to make a firewood store) and another two have asked if they can have any of the blocks. So I'm not going to have any trouble getting rid of stuff. And in the same vein I spotted some new 1.5" waste pipe in a neighbour's front garden today amongst an old bathroom suite they had pulled out. A knock on the front door and 2 minutes later they were mine. We can lay them in the slab as conduits for water and power.
Off for a bath.
S