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Hi Matthew, you may well be sorted by now. But if not try: Green Building Store or Rationale. GBS now do a 78mm slimmer profile frame that might be of use
Thanks that sounds interesting. I see EnergyPlus is a US tool, do you know if it uses ISO standard conventions for the condensation calcs?
Let us know how you get on with the install, which is presumably wood fibre retrofitted onto an existing cavity wall dwelling?
I meant to reply to say thanks for the advice and suggested link to Hunters Moon. I heard this from a guy called Andy Walker of Sure Insulation. He advises households on retrofit and his company used to install IWI.
Adam5 May 2017 at 10:08 pm in reply to: Timber specialist structural engineer recommendation? #39245
Also have you tried anyone of the AECB member companies who are structural engineers? https://aecb.net/services-directory/search/5 May 2017 at 10:07 pm in reply to: Timber specialist structural engineer recommendation? #39244
It might be worth asking these guys who they use http://edeninsulation.co.uk/.
If you say you're AECB member they might be more inclined to assist
Tom makes some very valid points.
Further to this I put together a briefing paper back in 2016, with practical advice on sustainability standards for planners, Councillors and councils (see attachment) summarised here: http://www.greenbuildingstore.co.uk/blog-greener-planning-policy-passivhaus/
Ultimately though the withdrawal and reneging on the zero carbon buildings policy is a political issue. The Conservatives' ideology was and remains anti regulation and pro free market, which is the polar opposite of what is needed to produce the radical carbon savings we need to get to <80% emissions reductions by 2050.
My briefing paper makes suggestions as to what can be done under current planning constraints, but these are still not enough.
Ultimately building regs needs to take up passivhaus standards for new build (with a lead in period), but unless more radical/scientifically minded politicians are in government its not going to happen anytime soon.
Thanks Nathan, that's very useful. I see on page 14 of the guide that there's a diagram which shows bad practice, which is exactly what the installer has done! Needless to say I'll be presenting them with this documentation and asking them to put it right