Browse Forums Heating, Cooling & Insulation 1 Mar 07, 2013 8:37 pm I'm looking at using a compiste roof (sandwich) panel for my renovation. Current roof is uninsulated asbestos. As part of the change, i'm going for vaulted ceiling using the underside of the sandwich panel as the new ceiling. The benfit of this : 1. quicker construction 2. no further finishes to apply 3. benefits of insulated roof in one panel structurally sound panel. My concern is that they are normally they are used for patios, however the vendors now claim they have been used for domestic construction (whole houses). And before you ask - no a house owner wont let a strangers in to see their installed roof just to see if they like it. I am wondering how this roof copes without sarking. Given the polystyrene layer you'd asuume the temp difference between the two sheets of mettal is voided and therefore there is no condensation. Is that so in practice? Has anyone used this on a whole house? Typical suppliers are: http://www.versiclad.com.au/roofing/?gc ... pQodPUUALw http://stratco.com.au/products/verandah ... ooldek.asp http://www.paneltech.com.au/insuldeck/index.php Mucha Mies|Sverre|Frank|Alva|Tadao|Gunnar|LeCorb|Rem|Santiago|Mick| Re: Composite Insulated Roof Panel Sheeting 2Mar 07, 2013 9:31 pm The following manufacture "roof " as distinct from verandah sandwich panels. Some use PIR instead of EPS for better Fire protection. Kingspan Panels Metecnospan, via Bondor website Ritek My previous Forum searches have not discovered any condensation concerns or issues. Proper installation is required as sealant is needed as each panel joins the next. Ditto for ridges, skylights, pipes etc. I plan to use either of the first two above, but have not priced as yet. However, from reading various Forums, I believe they are not cheap. I mean NOT!! Re: Composite Insulated Roof Panel Sheeting 3Mar 07, 2013 10:31 pm Thanks tezzab, I was quoted about $18K for a 100sqm roof at 125mm thick, and about $13K for the 75mm panel. However i save on ceiling construction, ceiling structure/brandering, ceiling painting, ceiling insulation etc. It only takes 2 days max to install, and they do provide sealed joints. Its the condensation i'm a bit worried about given it will cover a huge area and the last thing i want is water dripping all across the house. I got the original idea from Kingspan actually however they are a commercial product and very expensive compared to the ones i quoted. Bondor and Riteck look a bit priceir than my lot too, but ultimately it comes down to warranties and fitness for purpose. Mucha Mies|Sverre|Frank|Alva|Tadao|Gunnar|LeCorb|Rem|Santiago|Mick| Re: Composite Insulated Roof Panel Sheeting 5Mar 07, 2013 10:40 pm Mucha Glad you have a solution, at a reasonable price. Don't think you'll have condensation hassles if installed properly. My build is in a Bushfire area, so PIR, though more expensive, is my best choice. tim_k. Most of these panels have 1 or 2 chases already run for electricals etc. needs a little precision planning though to save extra "channeling" on site. tezzab Re: Composite Insulated Roof Panel Sheeting 6Mar 07, 2013 11:16 pm tim_k My concerns would be how to hide things that are in the roof space without having the space anymore.. Ie: lighting wiring and maybe water pipes tim_k, I'm raising my house so the ceiling of the lower floor will now carry all services. The insulated panels have holes in them to carry cables, so you just drill a hole in the location and fish the cable out. Also, as the trusses are now exposed the cables/conduits can be run on top of that - i intend to mount fans on the underside of the truss beams. Mucha Mies|Sverre|Frank|Alva|Tadao|Gunnar|LeCorb|Rem|Santiago|Mick| Thanks. Yeh ideally that would have been good, but have progressed too far now. Hoping some well placed internal walls fixed up into the battens will provide some… 2 5407 Good questions but the best answer will be obtained by visiting (ie: interviewing) a couple of house designers and/or builders and ask them. You may find it challenging to… 2 3234 2 9448 |