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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

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Energy Assessment: Commercial Energy Assessments

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    Just had one done on a shop. Ground floor, mid terrace with a basement, one large room plus staff kitchen and toilet, normal gas central heating system, no air con. Cost me £345. The domestic EPCs I had done a few months ago were £50 each. Is this discrepancy a valid reflection of the additonal work involved? If not, how do I go about climbing aboard this gravy train? Is it likely we will see massive over supply as in the domestic sector or will the rates hold up?
    • CommentAuthorSimonH
    • CommentTimeJan 23rd 2009
     
    Massive oversupply - soon. A friend forwarded me the number of assessors in training. Despite having studied most of the course work she has decided to leave it a while before paying to get the qualifications. See how it pans out. There is a lot more to do over an RDSAP based EPC. You break the building into zones of equivalent thermal performance, and then have to work out how each area is heated. Not as simple as the House + 2 extensions in RDSAP. Plus you need to know a bit more about contsruction than cavity, timber frame or system built .Think of all those fancy frontage shops have!

    However - for a simple shop like the one you'd mentiond I'd have expected the price to be lower. May be the different in Commerical EPC sis that the people doing them are "professional" and want a professional rate. the problem with domestic EPC has been the ability of anyone with £2-3000 to get on the course with no previous experience of houses other than "living in one". I think commercial might be a bit more off putting to Jo Public.
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      CommentAuthorali.gill
    • CommentTimeJan 23rd 2009
     
    This table is taken from the government projected figures for epc's for non-domestic prop's
    So backs up simons comment about professional rates for the work.



    Small Commercial Time (days) Rate (£/day) Cost (£)
    Collect data 0.5 £400 £200
    Calculate rating 0.5 £400 £200
    Auditing £40
    Cost-effective measures 0.10 £400 £40
    Total 1.1 - £480

    Also have figures for projected annual demand for epc's by property type.
    You might find this link useful if considering training, also if questioning whether assessor has earned their money.
    http://www.cibse.org/index.cfm?go=page.view&item=1086

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