Been reading the forum for awhile, so just want to say hello to everybody before I go to my question! :-)
As subject. I know what the building regs state for required u-value, but I was just curious what people (in UK) here on the forum target when they new build or refurbish?
I'm refurbishing an old Victorian house (9" solid brick of course!) and will insulate on the inside (don't want to mess with a nice exterior... :-) ). My target is somewhere in the region 0.20-0.25W/m2K as I don't want to loose too much floor space...
So what did/are you doing in your refurbishment/build?
Nigel
posted on 21-12-06
Why dont you aim for the aecb gold or silver standards:
For a long time now I have been asking the same question although not on here, the AECB document was very interesting, thank you Nigel.
I also have a Victorian terrace house and I changed most of the windows 2yrs ago with Canadian fibre glass windows (Fibertec) they worked out cheaper than quotes I had from british and continental companies and came complete with fly screens. they are U= 0.26 low "E" + Argon
i am insulating my north elevation with Lambs wool , Building paper + wood edges and covered in sheet ply salvaged from my place of work The south elevation at the back one day will be externally clad unless modern tecnoligy finds something else that will insulate without needing to thick a coat,,
There was something that was mentioned a couple of months ago on this site. which was developed in USA - Nasa,
Yours Arnold in Chester,
>>(9" solid brick of course!) and will insulate on the inside (don't want to mess with a nice exterior... :-) ). My target is somewhere in the region 0.20-0.25W/m2K as I don't want to loose too much floor space...
So what did/are you doing in your refurbishment/build?
Nigel posted on 21-12-06
Why dont you aim for the aecb gold or silver standards:
I am sure you both know that insulating any existing masonry is a tricky operation with various different technical aspects to overcome. I personally, would not let the u-value define what I wanted to use. Instead, look at the alternative product Specifications/Certifications you would consider using [some refs below]then decide what thickness is acceptable for your application. Every house is unique and there is simply not a one size fits all! There is a Section in the Green Building Bible Vol 2 which discusses this in much more detail.
I have looked at your links below :- greenspec is most interesting, can you tell me which section I should be looking at on the BBA website I've looked at contruction resources but again which bit should we look at.
Also what page/Section are you refering to in the Green Building Bible Vol 2
The BBA will depend upon your choice of insulation, the detail of each Certificate will give you the correct application, installation method etc. You can search by type here:
http://www.bbacerts.co.uk/query3.html
Page 109-115 of Volume 2 GBB allows you to assess your options for thickness requirements.
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