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This is a great pour, exactly what I'm after. I'm assuming the laterals will be obscene and plan to brace the ever living bejeebies out of it. I take it the DPM is just to stop the slab staying wet. And is there any under slab insulation?

I'm going to pour a 3x6m slab soon. It'll be rebated for blockwork, 2 walls with 100mm and 2 walls with 215mm blocks. Using 3x2 timber looks like it may work. At least for the 100mm rebate frame: When it gets to the 215mm rebate, things look a bit more ropey: I'm worried that either 1) the...

Nice, mix on site it is I guess. No need to pump though, it's literally right next to a side road.

I'm guessing the mic as you wait is considerably more expensive? Plan was for pre mixed.

Moving towards my first actual paid part of my workshop project (which will also kick off my 'my projects' thread) - The concrete pour. It'll be just over 3cu.m but the first time I've ever done something like this and I don't want to end up with egg (or concrete) on my face. I plan to have...

I assume this is a slab foundation? Issue you could see is moisture coming in underneath. But yea, need to see pictures.

Question was for the slab. For the blockwork, I plan on putting in some expanded steel mesh every few courses to minimise cracking.

6x3m 100mm thick concrete slab with rebar mesh. Blockwork building on top. I'm getting mixed results on whether I should add an expansion joint. What's y'all thoughts? South Hampshire (UK), sheltered location. Cheers, Fubar

Cheers Wessex, Did not know that! Go figure. Not that, it seems, anyone in our area cares about the rule.

Generally, glazing on the side of a house (to the principle elevation) should be obscured to protect privacy of neighbours.

Epic. Thanks FMT. While corner plots are not explicitly stated under class E, it is explicitly stated under class A, which sets a precedent that omission is permission.

https://assets.publishing.service.gov.uk/media/5d77afc8e5274a27cdb2c9e9/190910_Tech_Guide_for_publishing.pdf Page 16 Although this is applicable to extensions rather than out buildings, it doesn't explicitly cover corner plots in the outbuilding section.

Should also add, have spoken with relevant neighbours and all are fine with it. Most recommended "Just build it, the council won't care"

I am in the process of applying for planning permission for a single story detached workshop to the side of my house. Behind the principle elevation, but as it's a corner plot, I am subject to planning permission. Building will be block built, just shy of 6x3.8m & flat roof. I have already...

Short and sweet Woody, thanks :) Your view would be always hardcore even if well into sub-grade then? Not sure I follow the pencil lines remark.

Research done. Gotta get fancy with my form work. And not make the mistake of underestimating how heavy concrete is again. Will update the design and pop a few render up. Ta.

I agree the joint is not the strongest. However with the mass above, I can't see it moving. With the DPC painted on slab and up wall in one go, it would be a continuous membrane? I've nabbed the below off (dare I say it) B&Q liquid DPM as an example: If your concern is with water tracking...

Unfortunately, I'm going down from an existing 3m wide workshop to a 2.64m wide workshop due to available pace so I'm desperate to preserve every cm I can. I'm hard up against the fence posts (minus 20mm to get a finger in) and 850mm from the house wall (needed for access). So a thin slurry and...

So, the patch of land I've already mostly excavated is already well below grade. I've spend the last 12 inches chipping through rock, stones and clay. So I would likely be good just compacting hardcore on top and adding some trenches. Single skin. Blockwork rendered outside and painted. The...

Cool. Thanks the the input Mrs Ten. However.... Constraining hardcore?