Browse Forums Heating, Cooling & Insulation 1 Sep 07, 2016 11:00 pm I've just purchased a block of land that has an old cottage on it, the ceiling space in the cottage is half bedroom loft, half store room. At the moment there is basically no insulation other then some tattered sarking. I'm planning on removing the floor of the store room to expose the rafters which means I can't insulate at the ceiling level (it's a small cottage so this extra space will make it feel much larger) but I also want to add some insulation. I believe the current sarking is tattered because the rafters are on 900mm centers and there is no supporting mesh. My current plan is to remove the roofing iron add some wire mesh to support new aircell insulation, add the aircell insulation then replace the roof. That should give me a good vapor barrier and a little bit of insulation, that then leaves me the depth of the rafters (90mm) to add additional insulation. I'm looking at adding some 75 mm earth wool (http://www.knaufinsulation.com.au/en/co ... nket#tab_1) that will be flush with the inside edge of the rafters. So in the end I should have: External roof aircell insulation wire airgap 75mm of earthwool internal ceiling cladding (probably corrugated iron) Seeing as I've never installed insulation before is what I'm planning to do "dumb" or is it about right? Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Roof insulation (not ceiling) 2Oct 13, 2016 12:05 pm Hello - there are plenty of options available when it comes to ceiling/roof /attic insulation in the form of batts, spray on, loose file or reflective. How did you end up going with this? Still need some guidance - happy to help 03 9753 3811 Found the answer. The recommended distance is .... 1 5952 1000000% definitely add insulation. I have in my home and it makes a big difference minimising sound transfer. Insulation is pretty cheap and definitely worth it 2 6148 I am saying that double brick has similar thermal performance due to thermal mass effect. It will be still very interesting to see the state of your framing after 10-15… 10 29662 |