[Nigel Murray]

I look forward to some 'expert' replies to this one !
You have some good ideas to my mind, and some I wouldnt feel confident about.
Every case is different in building… and we have to mix and match eh?
Nigel

[Nigel Murray]

Hi Luke,
Have you been in direct contact with the DomesticRHI helpdesk? I went through quite a bit of trouble sorting out a dRHI and by pestering them at [url=http://Domestic RHI ]Domestic RHI [/url]
I was able to have a reasonable conversation with someone who DID help me.
pm me for details.
Nigel

[Nigel Murray]

Hi Pete,
No-one has picked up your question about concrete or timber floor have they?
For me it depends on the site. If an Easy gradient then concrete can be fast, cheap and incorporate lots of insulation. Any other slope (like in Cornwall) a suspended Timber floor (like Edge'oCliff) is less carbon intensive.
If its an electric UFH… then the smallest heat sink in the floor would seem better for faster heat transfer to the space above.

As an aside, could they fit a Solar thermal system out of the building?

And when you have this fully designed I have a client who may buy the package !
Talk soon.
Nigel

[Nigel Murray]

Anyone managed to take a GD assessment through to a Quotation stage from a provider? Or actually get a GD approved?

[Nigel Murray]

The 'NEW” website formta and the SEARCH functions seem to be working at last.
THANKS to all those involved and wonderful to find all those pages after all this time.
The website format looks great too.
Nigel

[Nigel Murray]

Yes, a supplier I use for graphite EPS advises 'ageing for shrinkage' of boards for EWI use also and usually does this at the production plant. I was wondering if perhaps on the larger jobs , where product was manifactured specificially for a project, this may be missed ? or is it the case that phenolic needs a longer time to allow for intial shrinkage?

Thanks J, and when I phoned Kay-Metzeler, they said 'most customers ask for it to be 'aged' 2-3 weeks in block form i.e. before cutting to sheet thickness. Have you seen any further shrinkage on jobs using this product?
Nigel

[Nigel Murray]

Look at
http://viking-house.co.uk/passive-slab-insulated-foundations.html
no problem

[Nigel Murray]

Any readers seen the ceiling of the Ikea Dublin carpark? Reported as having shrunken boards and delaminating foil???

[Nigel Murray]

Thanks for the input.

… but I worry about the Neopor due to lack of data with regards to renders adhering to. … the worry for me is, as graphite is used as a lubricant, to expect render to stay stuck to it over time is the question I feel needs answering.

Good point, but is the surface not textured in any way?
I would assume the surface is hardly smooth with all the gaps between the beads. Dont you think this will provide enough keying?

Nigel

[Nigel Murray]

And to top off this non-discussion the chosen rep for the job I'm involbved in just called to say that they had had trouble with phenolic and they wanted to steer me away from using it – recommending graphite EPS instead… and for less cost
Now just have to persuade the owner…

Nigel

[Nigel Murray]

Unfortunatelly I cant get the Search function to work.. saw the post thanks Kate… but while looking elsewhere i found this thread

I am doing the same research. We recently visited Adam Dadeby's PH refurb in Totnes, where he is using phenolic insulation to keep the thickness down. A stack of boards seemed to show degradation from the sun, and I have heard warnings about phenolic delaminating. I am looking at EPS with graphite, which seems to give a good price to performance ratio. It has the additional feature of being vapour permeable, unlike the extruded products.

Any further info Rob ? or Adam?

regards
Nigel

[Nigel Murray]

Just heard of same problem for a roof that was to use panelvent with membrane over. Manufacturer not keen to use Sarket in case someone falls through it, curious what others using on outside, especially roofs.

Nick

I have used Steico Universal 24mm T&G on roof (and walls) and never dented it walking along the rafter lines. Better contribution to insulation values than Panelvent.

Nigel

[Nigel Murray]

And have you heard of
http://www.recipro-uk.com/
Not used them myself but they're trying.
Nigel

[Nigel Murray]

Euroform might have something:

http://www.euroform.co.uk/

Had an opportunity to experiment with Euroform's 'Versapanel' which seemed to be a complying product, but practically found it to be too brittle a material to use as sheathing. Cracked while sawing, again while gun nailing, and again while contersunk screwing… Reverted to cement board as had to be Class'0'.

Nigel

[Nigel Murray]

SW Regional Group contributions requested

Anyone interested in helping to make a submission (as AECB members) to the Cornwall Council's 'Cornwall Sustainable Building Guide'?
http://www.cornwall.gov.uk/Default.aspx?page=21590

If so please contact me.

Nigel Murray

[Author]

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