I have wired rooms made of cool room panel before, a hot rod soon makes a suitable cable channel in the polystyrene, just make sure you install it in conduit or use the right type of cable
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Check out the ATA website, I recall a house in Melbourne (possibly Brunswick) being built with coolroom SIPs. Interior looked metallic.
Either Sanctuary or Renew had an issue in the last year or so that focussed on SIPs for house building but largely the OSB and magnesium oxide ones.
I was keen to use the insulated and fire-resistant Colorbond sheets when we re-roofed our house but at the time we were told that they couldn’t be used on a gabled roof.
Standard,polystyrene,with fire retardant.Been around since Noah was a boy.Not the latest fire rated XFLAM.Quote:
Originally Posted by roverrescue
Should be fine, just check insurance.
As someone said,right type of cables need to be used, or it needs to be in conduit.
I had to use that special cable for the downlights in the roof of our new deck as it was polystyrene sandwich panel, designed as roof panels.
You may find on the panels you are going to use, the wiring channels are separated from the polystyrene so normal cables will be fine.
Good luck with it all.
Thanks for the heads up on the plasticizer issues. I take it normal PVC conduit is fine it is just the particular PVC insulation that is the issue?
Is PVC-free insulated wiring generally available or is it considered an order-in item in the electrical industry?
Interesting that they said that about gabled roof. What angles are you talking about? I have seen a couple of diagrams indicating how it can be done to satisfy the NZ build code. Maybe these are NZ specific or have been developed for residential after the time you were looking. I know the ridge flashing needs to be designed to consider the wind zone the build is located in. In low angles, a wide band of adhesive is also used along the ridge prior to the ridge flashing going on.Quote:
Originally Posted by Arapiles
Order in at huge cost,did you expect anything else?[bigsad][thumbsupbig][biggrin]Quote:
Originally Posted by windsock
The stuff we use has orange insulation.Luckily the sparkie we use does a bit at the local meat works so often has some hanging around.
About 10 years ago, but it seemed odd to me at the time.Quote:
Originally Posted by windsock
I’ll check with my sparky re: PVC insulation and polystyrene
But reality is XLPE insulated wiring isn’t too hard to source (most PV wiring is this) And is not crazy $
Steve
Thanks, I'll have to ask around here too. I am planning on running a conventional 230V AC circuit but as it going to be an off-grid supply, I was also looking taking the opportunity to run a secondary 24V DC circuit in parallel in a few places where I might be able to run DC appliances and lighting.Quote:
Originally Posted by roverrescue