Hi
I am getting grief from the buildings inspector. I have battoned, fixed a layer of tri iso super 9 and battoned on top of this with a plan to plasterboard and finish the wall. I have seen this done many times. The buildings inspector is saying that tri iso cant be used on walls and I must now put thermal board on top of the tri iso.
Any advice appreciated.
Thanks
Tony
posted on 10-08-06
Good for him! I don't think that multifoil insulations work as claimed and there is a debate in progress over this currently.( use search on this site to find multifoil) How about using sheeps wool or quilt?
Nigel
posted on 10-08-06
There is no certification for tri iso on walls so he is correct.
I would follow his advice and put a layer of thermal plasterboard over the tri iso.
See also the thread on multifoils and judge for yourself whether they work or not.
Paul Teather
posted on 10-08-06
It realy ***** - mine blanking that people are still getting ripped off.
I have been told that one manufacturer can put the stuff out of the factory for £1.60/m2.
Selling for ten times this there are huge profits to be made!
(and very cold houses in winter!)
JohnL
posted on 10-08-06
If you believe all you read they are supposedly better than vacuum insulated panels (errr...I don't think so!)and perform better once installed than in standard lab test conditions (...what!!?)
Its all muddied waters and as they say "smoke and mirrors" or should that be reflective foils?
fostertom
posted on 10-08-06
Does anyone want to take up my offer to talk to the very genned-up technical guy of one of the mulitfoil manufacturers, or is it nicer to just go on being comfortably sceptical?
There's a new take happening, on the insulation performance model, that's a whole lot closer to reality than the sadly simplistic steady-state conventional model (which we all know rarely performs as intended, once installed). I'm not going to publish his name and number but anyone willing to listen and learn, contact me. This is radical new stuff that we should be following with interest, instead of just swallowing the spoiling propaganda of the conventional insulation manufacturers.
The multifoil cos aren't low-budget ripoff opportunists - some of them have major R&D operations, including Actis (hard to believe in view of their apparent cluelessness).
Talk to this man and he may tell you of the endless possibilities in store, which they've been neglecting because all effort is presently concentrated on battle in UK technical committees. Future accredited uses certainly include drylining as described, also cavity insulation; and fixing accessories will appear to further improve performance; e.g. stand-off/suspension clips to eliminating the remaining contact that crossbattening still creates; also a range of ingenious foolproof edge strip things to make airtightness easy. Similar to Glidevale etc. creating gadgets that eventually made the through-ventilation system easy, after pioneering years trying to do it with bits of batten, mesh etc.
Support these guys - wish them well, hope they'll succeed in proving their point. What we're seeing now is the classic trajectory of paradigm change.
