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Cheers - I understand the differences, but don't understand what OSB2+ is supposed to be. Is it just a variant of OSB2 that will have the same limited weather resistance, or is OSB2+ the equivalent of OSB3? Literally nothing on Google about OSB2+. If it's under an EPDM membrane, does it even...

Hi all - I ordered some OSB3 from a small local supplier, but now I look at it it's marked as OSB2+ which I can't find any info on online. It's made by Norbord (but no info on their website) and marked as 'SterlingOSB' and 'Structural 2+' then a load of illegible writing. Have I been given...

Hi all - Planning on building a 4-bay open timber car port under permitted development, detached from our house and 2m+ from the boundary. Everything about the design would comply with PD in terms of heights, eaves etc etc. However, the dimensions would be something like 12m wide x 4.8m deep...

Many thanks for your continued advice, John. The mini CU is only around 6ft from the main CU. If you look at the crude diagram below, the mini CU is the small red box, the main CU the long red rectangle. Black areas are walls and the grey box is the meter box on the outside wall. There are no...

(1) oven / microwave mini CU is in the kitchen in a cupboard under one of the ovens. The location is to the right of the outside meter cupboard as you look at the image (2) no no cables are visible. The main CU is directly behind the outside meter cupboard, so I assume the two cables from the...

That's correct, John - there's a main oven, a combi oven / microwave and a steamer oven that those three MCBs cover. All three appliances are devoid of electric. In terms of where that CU is getting power, I don't know to be honest. Would you expect there to be a connection to the main board or...

Hi John - There'd been a definite click to the action of pushing the lever on or off, and no obvious resistance, so I think it is resetting properly (we've had numerous power cuts etc in the past and the levers have always worked like this in the past). In terms of the 'cooker' RCBO, this will...

The 1st circuit is on a RCBO B32 (Wylex) and the cooker / microwave ones are marked as NB1-63 B16 (CH(i)NT). They're the only boxes I can see.

Hi all. A couple of days ago we lost power to all sockets on one circuit (utility, hall and dining room). Trip switch had tripped and when flicked back on would trip again. After a few hours I tried again and this time it didn’t trip. Turned kettle on to test and it tripped again. So, I...

Temp of the store is 60 degrees. Store is a 450L thermal store made by http://www.heatweb.com/ but can't see a model number. It's been in since 2008/9 or so, and we've never had seasonal issues with water temperature.

Thanks Mick. The 'out' pipe from the heat exchanger is too hot to touch, so I assume that is fine. If I touch the HW pipe after the mixing valve has done it's bit, it's easier to hold as the temperature is lower (I guess it should be lower, but I suspect I still shouldn't be able to...

Hello folks - Until a couple of months ago, we'd always had decent hot water for baths etc. Our setup is a thermal store with a heat exchanger, heating mains cold water. There's a thermostatic mixing valve, with hot water from the heat exchanger coming into the top of the valve, the mains...

Hi folks - We are 80% of the way through a self build which includes planning permission for a large detached garage with rooms above. As we have a decent size bit of land behind where the garage is to be sited, we contacted the local planning office to see whether we could get permission on...

Hi folks - I'm about to start building a 3 storey 320m2 house with good levels of insulation, etc. As we're not on mains gas, I've been looking into possibilities such as heat pumps, solar etc, to provide central heating and hot water. I've been looking at a product - Combi 185 - from a...

Hi noseall - Why would you want you floor to be portable? Isn't that taking the phrase "mobile home" to the extreme? :) Seriously though, I assume you mean that as ply presumably comes in sheets it's more difficult to carry / lay etc? Regardless of that, do you think that ply would...

Thanks for the info, folks - any suggestions on a replacement that won't require a Building Regs change, or will ANY replacement mean going back to Building Regs requesting an amendment?? ps just found that the dimensions for his sw joists are 220x47mm at 600mm intervals

I'm about to start on a self build and had an architect involved in drawing up my design. I specified that I wanted a solid 1st floor and not one that was going to creak and squeak a couple of years down the line. In his drawings, he's designed the floor as "22 T&G flooring grade chipboard on...

Hi - I'm planning a self build and would desperately like to hide away my electrical sockets e.g. in floor boxes as found in offices. Does anyone know if floor boxes are allowed in domestic homes with regard to building regs? I think there's a disability rule about placing sockets at...