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I had a similar sized sips cabin built for me by a couple of Canadian builders. It had sips as the floor as well built on concrete pillars. Very happy with it. Can’t tell you the exact build details of the floor construction. But I think it was something like metal straps concreted in to the pillars fixed to the studs between the panels.

Yes as you describe. I did the pours as well. The actual polished area was only a max of about 40m2 though. had to do the whole as house at the same time so certainly could have laid a more level floor! Definitely not the most straight forward to get things super level. and much harder over a larger area. would be interesting to know what margin for error the contractor offers (maximum mm discrepancy over the whole area). also you have to factor in some expansion joints. I have some minor cracks in mine as I didn’t have any but no big deal for my place.

I’d use 3.5 nhl with sharp sand mixed at ratio 1:3. dont make it too wet. Push it into the joints and don’t worry about leaving excess around the joint. Next day (or when it has dried a bit) compact with tool/bit of wood and clear off any excess. Then use a churn brush (or softer) to do a final brush over.

Do you mean that granite should use nhl5? I can’t see why 3.5 wouldn’t be fine and that certainly will knock up next day in this weather

I’ve done a couple of diy exposed aggregate concrete floors to good success. You are correct that you just need to omit the screed and go for a slightly thicker slab. I hired a grinder and spent a week grinding down (I threw in some larger stones after the pour as well), then going through finer grits. Would have been easier if the pour had been more accurate. Didn’t power float mine but if doing again would try to make more effort to get the pour flatter. good luck!

Asking for a friend whose oil boiler has packed up. She has been quoted £10k and that sounds crazy to me. anyone have a reasonable idea? it’s an external one at the moment that works with a hot water tank if that makes a difference but not sure of actual size. Apparently it will involve changing rads to thermostatic valves at the same time.

I’m in the side of it not being worth insulating everything!

Blimey - didn’t see all the replies before ordering a reconditioned board. Arrived last night and fitted this morning and all seems to work! let’s hope it continues for a while! thanks for the replies

My Vailant ecomax 828/2 E boiler has decided to not turn on any more. turn the on switch and no display and no firing up. Switch appears to do something as the voltage detector lights up in the picture when the switch is on but not when it is off. What would next step be? just replace the whole board? bit confused most replacement boards seem to cost £250ish but this here appears to be £35! https://www.heatingandcateringparts.com/product/vaillant-ecomax-824-828-835-e-pcb-711949-711950-734678-genuine/?gclid=CjwKCAjwkY2qBhBDEiwAoQXK5RpdtYwRR67RgXrRoexafdtI698Wf4yDEJrTipeVSzXC-3ZNJ93H3hoCe_QQAvD_BwE

https://www.ukbathrooms.com/products/multipanel-silicone-sealant-in-clear.html?msclkid=ec5032152763108f5cb9572f1df797b6&utm_source=bing&utm_medium=cpc&utm_campaign=CJ - Bing Shopping (All Products)&utm_term=4578572647514174&utm_content=All Products this sort of thing. can’t see the point of plasterboarding myself. But you need to make sure you have enough studwork for it to be solid. Should be instructions with the panels

But maybe you don’t mean shower panels and are tiling onto panels in which case ignore me!

Shower panels I have put in used mastic to stick them to the wooden frame and block. need to make sure you have enough to stick to. Should be instructions on the panel manufacturer

Well got the socket tested and earth for the cu and all was well. ended up buying a new washing machine for tenants’ peace of mind and am keeping the old one as a replacement at some point

I have a washing machine that gave a mild shock recently on the leg when brushing against the main body of the machine (been fine for years). using a tester it lights up when and only when I point it at the (plastic) control panel (see pic). I have inspected the plug and it looks fine, the supply tests fine with a plug in tester (only thing it says on it is that it can’t detect earth neutral reverse). I have used a pat tester and it seems to pass when I connect the testing lead to the screws next to the door latch. But fails on the first test of continuity of earth when touching the main painted section (seems like metal to me whereas the top section with controls is plastic as is the bottom section with drain/filter). Should that not pass since it is painted? the unit passed a pat test that I had an electrician do in June this year for what that is worth. any ideas or next steps to isolate the problem?

No doubt it isn’t easy to upgrade floors and walls in some old buildings. but are you seriously saying that it is a good thing that the government is postponing forcing a landlord who has little incentive otherwise to put 300mm of loft insulation instead of the minimum shoddy 100mm that might be there in their rental properties?

I’d go with 3.5 make sure it’s a good sharp sand nothing too fine

Anyone got any recommendations for a dimmer switch and gu10 bulbs to go with a JCC Fireguard Next Generation GU10 Fire Rated light? https://www.cef.co.uk/catalogue/products/4913592-fireguard-next-generation-gu10-fire-rated-tilt-downlight-white only 5 lights on the circuit.

Definitely don’t leave 3mm below plasterboard level, just cut it level or slightly recessed. Much easier to plaster and makes no difference to vent going in.

Presumably the grey bit pushes into the duct and then you screw the cowl on? check it and see. plasterers going to be happy if it is cut back so can plaster without restriction

Can’t help you on the legal side though presumably a lot depends on what is written in the land documents. But don’t underestimate the impact on neighbour relations that any such request might cause, no matter how much the law is on your side.

I don’t quite know the layout but isn’t it going to be easiest to put a door in and be done with it? not what you want to hear I suspect but going to be easier than a mist system and how much extra will it really cost?

Maybe - I presume all the damp has gone by now though (been a few months)

It might depend on how accurate you can be avoiding any existing wiring/pipes if they aren’t nicely in the middle of the void. I have the same conundrum for a ceiling ruined by a water leak and am worried about hitting something. Maybe I should just buy a joist finder and go for it! Definitely less mess.

This stuff is good.

I generally agree with the sentiment but I’m not sure in this instance there is any practical difference in results (assuming the air tightness tape is something decent like tescon vana). It might be the op has all I suggest to hand and it is a straightforward solution. but as always it is up to the op to weigh up the suggestions and go from there.