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Links for February 9th through February 14th

by Mel Starrs on February 16, 2011

in News

These are my links for February 9th through February 14th:

  • Passivhaus vs the UK approach – a non technical comparison of the different principles « WARM: low energy building practice – “However, again the difference in principles with Passivhaus is interesting. PHPP, the Passivhaus model, is based on external measurements of the building… This has the effect of eliminating some of the academic ‘thermal bridges’ present in SAP such as normal wall corners – which are really just created by a geometric oddity rather than poor construction. The result with Passivhaus is that the architect can produce a ‘thermally bridge free’ design and no consultant ever needs to do a calculation… SAP conversely has fifteen different bridges (at my count) – all of which need to calculated or picked from a catalogue – and none of which can ever be thermally bridge free because SAP’s internal measurements inherently underestimate heat loss.<br />
    …I fear that the UK approach will spawn a range of new professions and complexity – perpetuating the one way process of box ticking and checking familiar in current SAP assessments.”
  • Revised Guide to Carbon in Construction published | cutcarbon.info – Sub-CRC guidance on carbon reporting: “The Civil Engineering Contractors Association’s (CECA) “Guide to Carbon in Construction” has been updated to include emission factors issued by DEFRA and the Department of Enegery and Climate Change (DECC) in 2010.
    The guide was first published in January 2010 to explain the impact of emissions in the construction process and contractors’ responsibilities. It focused on carbon emitted from energy use such as electricity and fuels used in construction plant and equipment including petrol, diesel and gas oil.”
  • Olympic Regeneration Legacy Disappointments « The Chris Brown Blog – “we should be realistic about regeneration and placemaking legacies from sporting events. Sports stadia are not generally good neighbours. They generate limited local employment and periodically overwhelm the local environment with traffic and spectators but without delivering much significant in economic outcomes.”
  • Localism in Walthamstow: Down at the local | Magazine Comment | Building – I continue to be fascinated as to what localism might mean – good piece from Tom Broughton: “But this is no longer about the letter of the law; it’s about the spirit behind it. Without regional housing targets, developers of all shapes and sizes are going to have to get better at engaging communities if they want to win over the silent, mostly reasonable, majority. Even if this approach has been part of their strategies for years, developers will need to do a better job at selling what they’re doing. This means greater transparency and accountability.
    Localism is claimed to be about better understanding what local areas really need, rather than about what is most lucrative, or most expedient. The burden will be on developers not only to ensure that they have consulted widely but that they have secured the maximum local response – and council bosses will be charged with ensuring that that consultation actually means something.”
  • Cargo ships: a low-carbon travel alternative? | Forum For The Future – Yikes!: “a return trip to New York on the QE2, for example, is 7.5 times more carbon intensive than a flight”
  • http://twitter.com/ecominimalnick Nick Grant

    Had a meeting with SAP assessor yesterday and was asked about y and psi values and accredited details. Thermal bridge free by external dimensions wasn’t an option apparently!