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Ian last won the day on July 2 2018

Ian had the most liked content!

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About Ian

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    Chartered Architect
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    North of England

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  1. Yes, I think you’re right. I’ve inspected a couple of commercial jobs where water had got behind the tiles and the underlying gypsum plasterboard had turned to mush.
  2. @patp PP permitted development rules don’t come into play until you’ve finished the main house. Also in order to reclaim the Vat on the garage it would need to be shown on your PP drawings so it would be best to apply for the PP for the garage straight away
  3. You normally only need to fire treat cladding if you are building close to the boundary. The closer you are the more of the cladding you need to have fire resistant (requirement is expressed as a % of the facade). BCOs in my experience will accept self-applied surface treatment but they may ask you to provide proof that the fire retardant product that you are using is certified for the purpose. Most BCOs will want a copy of the certification.
  4. A 100mm thick concrete floor slab weighs about 240kg per sq metre
  5. Sikaflex EBT + worked for me in an external application where several others had failed
  6. I built a new-build 71 sqm bungalow to minimum building regs in 2016. EPC is C71. U values are 0.1 floor, 0.13 roof, 0.21 walls and 0.8 windows. No PV or other renewables. It's heated by UFH via a combi fed from an above ground bulk LPG (1400 litre) tank. It's in a very remote area of Wales with no close neigbours and we use it as a holiday home which is one of the reasons why I went with LPG rather than oil as its not as easy to pinch. The heating is normally set to a 'frost' setting of 12 degC and then I remotely boost the heating to normal temperatures on Friday evening when I know we are going at the weekend. The LPG tank was free issue. The last full year of LPG usage was about 420 litres at 33p/litre so about £140 + the £66 standing charge. Thats for all of our heating, hot water and cooking. I reckon about 90 - 100 litres went on hot water & cooking so about 330 litres costing about £110 was the cost of our heating. A full tank contains 1200 litres so lasts us longer than the 2 year LPG lock-in contract period which is handy as it means we are never held to ransom. We have 3 main local bulk LPG suppliers.
  7. +1 I've got an Opinel and you need to use the locking ring if you want to keep all your fingers
  8. Road planings - in N Wales last summer I paid £260 for a 20 tonne load delivered.
  9. It depends where you are building in the UK. In my experience there’s a great deal more flexibility shown by BC Inspectors in England & Wales than there is in Scotland.
  10. 2 metres is the minimum in the Building Regulations but that would look too low in all but the smallest of rooms.
  11. a sheet of toughened glass can sound like an explosion if it shatters. As @Mr Punter said and I've said in previous threads, balcony glass is best made out of two sheets of toughened glass that are laminated together. If one pane shatters it stays fixed to the other pane so (1) no broken glass everywhere, and (2) you've still got a functioning balustrade The 2 most common reasons for failure of toughened glass in a balcony are due to nickel sulphide inclusions (best to specify heat-soaked glass) or that there is a mis-match between the steel brackets holding the glass and the pre-formed holes in the toughened glass. Steel will expand & contract with changes in temperature and if it is too tight to the edge of the glass it will break it.
  12. the optimum gap between panes of glass is about 16mm so typically 4, 16,4,16,4 = 44mm Our 3G units have the middle and inner panes as low E glass and all 3 panes are safety glass and low iron. I believe it's important in a 3G unit that the middle pane is toughened because of the unequal thermal stresses. Other things to look out for also apply to 2G units ie whether the gap is argon filled and whether the unit uses super spacers.
  13. Sorry I don't know the cost of it. I've only used it once which was on a commercial project a while ago. It worked very well and was very quick to install. I also used this product on a large domestic extension quite a few years ago. https://onduline.co.uk/products/ondutile/ I couldn't meet the minimum roof pitch for an interlocking roof tile so installed the Onduline under the tiles. As far as the Building Inspector was concerned the Onduline was the roof that gave the weather protection and the concrete roof tiles were purely cosmetic.
  14. There's quite a few proprietary systems on the market for roofing that would allow you to do exactly what you asked eg: https://www.kingspan.com/gb/en-gb/products/insulated-panel-systems/roof-panel-systems/slate-tile-support-roof-panels-ks1000-ts
  15. The plasterboard is only on the outside faces Ian. The two separate studs make a big difference to the acoustic qualities of the overall wall as there's no direct transmission path for structure borne sound. British Gypsum has a very good website which lists various partition wall types together with their acoustic ratings. As with everything else, the detail is important eg not putting sockets back-to-back on either side of an acoustic wall. Sealing any air gaps is also v important.