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About climbinggeorge

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  1. Thanks all, will go straight down with insulation (plus edge insulation), tape the joints then extra membrane, UFH then screed.
  2. I've got a little conflicting info on the appropriate layers for our ground floor so I wanted to check in with the buildhubmind. We have a builder that is completing our house to shell, they are handing it over to us with a beam and block floor with a membrane on it (all pressure tested at this point) I had planned, and the architect's spec had said to put insulation, then clip UFH to it and pour the screed. The screed supplier had suggested another membrane over the top of insulation to stop any reaction between screed and foil, and stop any extra screed pouring down cracks. A potential UFH installer had said putting a layer of sand and another membrane on the existing one. The logic being that the single membrane is our only defence against damp so it adds redudancy wither another layer and the sand protects from any sharp bits from the beam and block floor. Just looking for an idea on usual practise, if such a thing exists
  3. That makes sense, thanks. My partner took out the insurance a few months ago I'm just trying to play catch up as we are (finally!) reaching the next stage of the build
  4. I've just been reading through our site insurance and saw the below: My reading of that is that we are covered, except that the insurers would not pay out anything greater than zero for anything related to site huts etc? The main item - the actual build is covered but a lot of the extras around site are not.
  5. Thanks, that seems a common sense of doing it. I may have been overthinking it a little
  6. I've got a bit of a dilemma I'm trying to think through and wanted to see if my solution is viable. There have been delays connecting up the site to mains water (an organisation holding access on a road to ransom, a work in progress but not fixed ETA ). We are just about watertight to shell now and I wanted to crack on with the fit out where I can. For the ground floor the plan is: Beam and block floor (laid) Membrane 130mm insulation (due to arrive next month) Membrane Wunda cliptrack UFH 50mm liquid screed 20mm Floor finishes I can get the UFH piping laid out and clipped down before the screed arrives. For my own peace of mind I'd like to pressure test it before the pour, I've also been advised there should be water in the pipes and pressurised during the pour to prevent rising and stop cracks appearing later. Which leads me to trying to pressure test the piping without access to mains water. I think I should be able to manually file the pipes through the manifold and then use a pipe pressure tester to check (something like this ? ) but would welcome advise if that's the best way or if I'm missing another better solution? The only other work around I've considered is using the wundatherm product and sitting that on top of the screed, effectively raising the floor level.
  7. Are you still able to claim VAT back at the end of the self build if the invoices were made out to Joe Bloggs home improvements?
  8. I had planned to get screed down, then build studs directly on top. This was possibly because I was just thinking in layers. However due to delays its now looking more likely to try and crack on with stud walls then pour the screed around them. For this a friend had suggested doing a layer of blockwork then pouring screed and then building the studwork on top of that. I wasn't sure if the blockwork can sit directly on the insulation or if it needed to go to the beam/block but thought this would have a cold bridging risk? Have attached a very technical drawing, with my original thinking on the left and the 2 alternatives on the right if anyone can advise
  9. Apologies for the delayed reply. The package is Stroma FSAP 2012 from I think at that point I'd reached the end of my tether with it, will sit down and try and go through it again Based on this I believe its the kWh/month
  10. In a similar vein to others I'm having a bit of difficulty trying to work out if we need UFH upstairs and downstairs or just downstairs. I'm trying to work it out based on the SAPs and what heat the systems can produce, however I think I'm getting my numbers muddled if anyone can help with pointers. We've got approx 49m2 downstairs (tiled) and 49m2 upstairs (wood) on a detached timber frame property in the South West, I've plugged my figures into Stroma FSAP 2012 and have the below: But I'm struggling to match that to what the ASHP (4kW ecodan) and UFH (wunda are frontrunners, 15mm in screed) produce and how to make sure we're ok day to day in winter.
  11. Hi all I'm struggling a little on trying to plan ahead for when we get the shell handed over and start on the first fix. Whilst I'm getting to grips with what needs to happen, I'm not sure in which order particularly when they are separate (but possibly dependent on each other) Has anyone got advice on how they have approached this or resources used? I've got a growing spreadsheet of items to be addressed but ordering them is the next step
  12. Thanks all, it looks like prep work and smart buying will be the way forward
  13. After (a very long feeling) couple of years back and forward we should start building in the new year. It's a 2 storey detached timber frame house, we're getting it built to shell then handed over for 1st fix towards the end of 2020. So my question is if anyone has taken evening courses and if so what they felt they gained/any recommendations? For context this is the 1st house so renting has limited my DIY experience, and whilst I like to think I'm relatively practical I work in IT using databases all day For budget reasons I'd like help with as much as possible in weekends/evenings/holiday but I need to be realistic
  14. For further interest this breakdown was provided on the sunamp website (excuse sizing):
  15. Thanks all, will follow the links and take a look. Although the houses are all of similar construction we're trying to consider how they will be used in future as owners change as well as the best choices for the those involved now so looking at general usage should give a basis