NailBiter

So this just occurred in America, they deliberately bricked thousands of inverters remotely: https://solarboi.com/2024/11/17/sol-ark-oem-disables-all-deye-inverters-in-the-us/

That would be great Moonshine thank you.

Which ICF system did you guys go for? Hopefully it's something simple for you guys like humidity vs seepage. We would be going for a system like this and I guess if we were to go A+A possibly a spray on system before sticking it on? I'm concerned by all the extra effort that will go into using a Type C system even though they are impressive in that other than silting up with lime (which can be present when throwing around a lot of concrete apparently) there aren't many catastrophic failure modes and most of the system can be tested (e.g. a floor flood test). It does present some requirements for maintenance too and rodding access is required at any change of direction. An internal moat doesn't sound appealing to me. It seems that the guidance allowing A+A systems was published in 2019 and hasn't disseminated fully yet.

On Page 5 titled More robust waterproofing solutions https://www.riw.co.uk/uploads/whitepapers/RIW_BS8102_2022_WHITEPAPER.pdf It states: We are using Nudura XR35 externally and Nudura one system internally and the walls are linked. For this reason I'm being told I need a Type A system (agreed) and a Type C system including treating internal walls. I can see the logic in this but I'd much rather have my waterproof perimeter on the exterior of the building even if it requires two systems. It seems in the most recent version of the standard allows for a Type A + A system as long as the mechanical properties of the systems are different. Is anyone taking this approach? We would of course still have drainage to the outside as per Nudura's documentation.

I'm no plumber so again massive pinch of salt here but it might matter how you connect the vents together. You don't want two exhausts blowing air at each other, you want them both joining together smoothly and pushing the air to outside. Think sanitary T waste pipe fitting vs a straight T.

This is an interesting reference point: http://constructionblog.practicallaw.com/does-the-no-notice-no-act-party-wall-decision-leave-us-in-a-no-win-situation/ I'm not a lawyer so I'm not even going to try and interpret that.

I'm sorry I don't really understand what happened here or what the question is, some clarity might help others too. You were planning to build an extension. Neighbour planned to build an extension. You decided to save costs by sharing the foundation for the party wall of the extension Neighbour now cancelled their extension but you will still build yours. Neighbour now wants party wall agreement. Is that correct so far? I'm pretty sure party wall agreements are mandatory so what other choice do you have? Are they making any unreasonable demands?

I think maybe there are two figures here: 1. How much air you can push through the intake / exhaust vents without creating too much noise. 2. How much your current MVHR pushes through them. It might be a different value.

Probably best avoided, both for your pocket and the planet. Can you give us some more info, e.g. rough floor plan (simple sketch is fine) and where the MVHR is etc? Total area to cool would be a useful metric too. I'm wondering if you can't take an input for an AC / Heat pump from the same place the MVHR does and exhaust to the same place it does (to avoid holes in the wall). You can then hydronically link the main unit to any blowers you need just like running radiator pipe but for cooling.

I'm well out of my comfort zone so I might be chatting bollocks but presumably a hydronically linked AC system like the Panasonic M Series with blowers would be an acceptable solution and not a waste of good water?

Yeah that is probably it but wow stuff has been cut right back to the bone. At the same time the unemployment rate is still low so what happened to the other designers / people at the firms? The wider building industry (architects, surveyors etc) is horrendously inefficient and disjointed. Digitall proficiency is also low and a lot of work is unnecessarily repeated multiple times or subject to productivity sapping on site changes. There has to be a better way of doing things involving a lot more automation and a lot less repetition. A rule based planning system would help too!

For example I spoke with BPC Ventilation last week and they are down to one designer and have a multi-week lead in time for designs. They don't seem to be an isolated example either. Has anyone else noticed this? What gives?

I think the https://bbc.co.uk is a really good example of how less can be more with this type of design. The goal is to convey information clearly at a glance vs having to squint. It is much easier to use for those who see well and is the difference between something being somewhat usable and totally unusable for the visually impaired.

For me that background and those colours would be too much. To each their own though.

Why don't you want LED light?