Oz07

Thanks

Thanks Peter. Obviously mine is less structural not holding walls etc up. Jablite guidance says eps70 residential eps100 offices eps300 factories

Cheers Jeremy. I got a ground bearing 100mm conc slab to be around 250 kg m2. This excludes any partitions and live loads but sounds a lot less than yours with me having traditional strip founds. I just couldnt understand that 1% and 10% compression performance if I can't find it's maximum bearing figure. Is the clue in the name ie eps70 can handle 7kn m2?

Going back to EPS bearing capacity. How do you choose what grade to use for ground bearing concrete slab. If the U laves stack up with EPS 70 is there any reason to increase the grade? Can EPS 70 support 100mm of self compacting concrete slab?

amazing how many pro painters don't do this framing cut in. Hard to find a good painter

Does that mean your better off with single runs and rodable from downstream rather than branched connection? means you lose the grey water flow. I thought you meant incorrectly too. Trying to get head around what you're saying I've got loads of them Long radius bends can either be used as a rest bend or horizontally with the top cut off for 90deg IC, then risers concreted ontop, also as you say underground 90 bends. I've only ever used them for underground 90 bends between 2 IC's though, however never had a blockage there.

Would it always be preferable to have grey water into a run if it needs an inaccessible junction below slab. I've got a couple of loos that can either be at end of run or y branch under slab with extension to kitchen/ washing machine. Does underground y junction mean rodding access both ends is more important?

Would it seriously be worth upgrading to 3phase for this reason or would converters be used in future?

Sounds good @joe90 no sweat on the delayed reply. What thickness did you go for 12mm? How about wall plate junction surely you used tape or membrane there?

Worrying over nothing then. I just thought that 450mm of plaster above a head may look odd. My true ceiling height is actually 2700 but want airtightness then around 150mm void with ceiling below to create void for services and mvhr

Think number one is okay. It's only a basin. I'd have a 110mm branch with pipe coming up thru floor in 110mm. Suppose the rules might be there in case future occupants connected different appliances. Number 2 id prefer rest bend bottom of wc with sink and dishwasher connecting into top of this. Same as above connection wise

Be a shame if your drawings showed it one block shorter than you built it! 450mm on the long side gets you below with my reckoning

2550 low?! 2400 standard with 2100 windows gives 300 bulkhead

Don't take pre app advice as gospel. I've gone against recommendations before and still received planning permission. Pre app advice is like them being super cautious

You're near me aren't you @Vijay? Try Harlows or Donaldsons. They would usually design based on providing the timber. Who's doing your main roof? Scrap that just seen location as london!

With having approx 2550 ceilings on a new place what would an appropriate window head height be? I always understood it was correct to have all head heights the same, say 2100. This would leave a massive head above window internally though of 18", may look a bit daft. What did all you fellow self builders do with your light a airy high ceiling'd homes?

I'm going thin solid laminate next time. Treat it as a consumable.

Surely these rules apply to individuals only. If a contractor was to hire a plant operator and machine and the sub contract operator charged the contractor VAT, contractor could still reclaim quarterly and zero rate invoice to individual? Sorry I know this digresses from OP post

As a footnote for anyone in Severn Trent region having a new connection if you show less than 110L on your water usage then no infrastructure fee - around £500 saving

Do you staple to joists/trusses?

Do you just tape all joins or trap with batten @ProDave? Is that tape you linked the other day the cheapest? I've sourced the smart ply airtight osb at about 30 quid a sheet thinking that might be easier to fix and less susceptible to damage. Still have to take though 3.6 l/metre per board plus ceiling perimeter. @joe90 you went for battens over your board joints rather than tape?

Connection detail I'd imagine. If you have gables you Could have gantry beam/truss gable to gable within proper attic area then mono trusses off each side of this down to wall plate. With posis for your floor

Was on a job in town yesterday terrible h and s yet they wanted people to wear vests and had a map to nearest defibrillator and hospital. Refused to wear the vest and refused to go back after yesterday. Was helping a mate oyt. Main contractor was to provide scaffolding below staircase we were fitting I'll get a screenshot of video. Don't get me wrong my jobs aren't a shining example of h and s but no stupid risks are taken.

Nice looking drums. Keep updated

Is this airtight like that siga?