Garden room concrete slab - how to route DPM and insulationC?

[gsf600y]

I'm designing a garden office/gym at the moment. The base will be a concrete slab, insulated from below.

Construction will be (from top to bottom)

1. Around two courses of brick for the timber sole plate to sit on.
2. 100mm concrete, top of which is ground level.
3. 100mm insulation
4. 25-50mm sand blinding
5. 100mm hardcore

I'm trying to figure out how I route the DPC (coloured in yellow in picture).

I've got 1 layer on top of the sand blinding, coming up all around, before the insulation is laid on top.
I then have a second layer on top of the insulation, before the concrete is laid on top. Nicked this idea from here

I'm just confused how I bring these two layers up, and where the bricks would sit on them or should they come up on the outside and over the top of the bricks?

Any advice on that appreciated.

Also, the insulation around the edge of the concrete slab confuses me. Would it be on the outside of the brick wall, or should the bricks be laid over the top of it?

Over the top seems strange structurly to me, but otherwise I've got insulation kinda exposed.

Again, any advice here appreciated.

Thanks

 

[onlyonefbson]

Hello there,

A little while ago, the above post, but I'm wondering exactly the same things. Did the OP make progress along those lines (or are they still waiting an answer before starting?!)? Or can anyone else make any comments on the questions?
Thanks!