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saveasteading last won the day on April 12

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  1. Repeated for anyone who has started at the end of the discussion. This makes every sense. Any new housing must have ashp or similar. Wbs can be added but must be justified. e.g if your house is 2 miles up a track it will be one of the last to get power restored after a storm. Explain to the bco and it should be ok. Likewise if your electric supply is unreliable. I used to look at the 'woodburners forum' on facebook and it demonstrates the worst of wbs. People who used it as their only space heating, coming home with whatever they could find. pallets, chipboard, tanalised waste, just anything.. If it's free, burn it. That's why it needs a rule.
  2. Good point. We don't know anything about any pre-treatment tank, or how this was built, or was it inspected. Most seem to be badly done. Doesn't it need running water though? I used to be able to find cables and active sewers, but I don't think I'd find a perforated pipe. Drainage I have found to be completely beyond most planners' comprehension. Difficult to walk away from, but it's best not to be your problem. The vendor must get a survey and design done.
  3. We bought Nordan too and our joiner fitted them very easily and quickly. I think a bit more costly than Kelvin's. But they wouldn't do slanted tops (no explanation) or work within our arches, so we bought aluminium windows for them at about half the rate. Perfectly good, but not tactile and lovely.
  4. Great. If you accept that they are expected to make a reasonable profit, it's a good start. Then what can we do as a team,and within that, to make savings/ keep to budget? Huge, substantial, reasonable? Define the risk areas.
  5. I've often thought of it but it never felt right. I think I'm anticipating that there are arguments that a problem encountered isn't the builder's fault an so you pay the extra and he get the bonus still. I'm more into ongoing feelgood such as praise and occasional bacon rolls or takeaways. Another thought. The estimates I have seen from qs services to builders have always been cautiously high. then the builder adds some risk too. Most builders aren't happy tendering so tend be high too. I took our joiner's boq and discussed it with him. We bought the timber so he had much less risk. I think the price came down 20%. some special features I talked him through in terms of man-days instead of comonents by the m. which came to half of the qs cost. On the other hand, the proper business has overheads and is used to risk. they might no want client dabbling. It isn't simple.
  6. 600mm existing stone wall. nominally 25mm space but increased due to the non-uniformity. cls stud with vapour barrier on outside. 100mm mineral wool between studs. vapour barrier horizontal battens for service void. plasterboard. In some place with sceilings we used fibre boars instead. By offsetting we achieve new build insulation levels. some stone was left exposed for heritage/ aesthetic with bco blessing. Again offset by extra insulation where it's easy.
  7. Yes. Made a lot of money. for my then employer not myself. The client got good value as well though as we had no risk percentage, and they could change their minds. So the issue is if 10% is the right figure. I would say it couldn't be less. BUT if they choose to subcontract then they are reducing their admin and there are 2 sets of margins. Who decides? Materials: Who orders it and who is responsible for efficient use. 2% waste in diy, 10% waste in contracting. And the skips. Tell them there will be none after demo.. A skip costs £2,000 when you look at the value of the unused material dumped in it. I don't know any of the people involved, of course, but I found that PMs can get very lazy with self sufficient contractors, as there is so little to do, and they get a bit pally. They spend more time with the workers than with you. That's better than creating disputes to show how tough they are though. If you know what you want and how to do it, fixed price contracts to specialists and forget the main contractor, as you have an expensive PM. If you don't, then what are these consultants doing? get a fixed price for what you can and agree 10% on the rest.
  8. If it is old it will have a soakaway, probably a small one filled with rubble and unlined.. If the tank is inefficient then it will clog from time to time. Either the neighbours know there is a soakaway or drainage field but are choosing not to tell you where, or they don't know. they must at least know where any cess or digester is, and you can asses where that would drain to. If it is working OK then there isn't really much of a risk, but there is always some. if it isn't working well, there may be occasional saturation of the ground. Look for longer grass and especially reeds to show where that might be. Look for the same on google earth At the very least you need a clause that says you are not responsible for any damage to their drainage system, and they are responsible for relocating it if found on your land. Assuming there is none, have you worked out where you would put yours, and most importantly if the ground is appropriate in porosity and area? it may be unviable.
  9. It helps to know someone is listening and interested. We don't know each other and sometimes we just possibly might not be correct on everything, but its like having 10 consultants in the room, to just interject on their specific knowledge. Linear design is costly...client to architect to SE to QS to builder, with any original non-optimal ideas carried through. You can save 1/4 by getting comments and feedback early. Scottish reg's for conversions have ' as far as reasonably practicable' applied to insulation and some other sections. Thus you can argue where costs are insane, or you want to retain character. English not so, and you won't know the bco's attitude until its too late. We plumped for a timber stud wall (tent) inside the stone, with mineral wool. We fretted that this was losing a lot of floor area but we don't think about it now, while sipping Glenwhatsit in the cosy space.
  10. I didn't know this material, so thanks. so have had a quick read up. 50mm seems to be the maximum but doesn't seem to provide rhe insulation you need or want. I'm guessing it looks rustic and may crack as the building moves.
  11. Our report on the first winter. Ashp and ufh working well after the plumber corrected some reversed pipes! It's kept on low and slow. But it's far from passive with big windows and some exposed stone. There is heat loss at floor to wall interface too....there are constraints with a conversion. So the wbs goes on in extremes but also for an hour some evenings, til it's too hot.
  12. @charlieroper the biggest surprise to me was the difficulty of getting headroom under existing door openings. It required reducing the floor level yet not undermining the walls which were only 200mm below ground level. Apparently this is commonly overlooked with even some collapses. Ours had lots of doorways. Maybe yours doesn't.
  13. Very few politicians understand science. So it's easy to jump to the conclusion that burning is bad in all circumstances. The most remote rural locations are last in the priorities for restoring electric power. So it's potentially days. Far better to install a quality wbs with fresh air intake, than sneak one in after the building is signed off.
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