Browse Forums Heating, Cooling & Insulation Re: Sarking, Wall wrap sisalation & insullation - what is it 21Oct 13, 2012 8:02 pm Thanks guys! I've added the R1.5 batts to our quote, but asked him for thicker ones and he said it wouldn't be much more expensive but that they might not be able to fit more than R2.0 or R2.5 into the walls. So we'll definitely go with the thickest that can physically fit if the price isn't too much higher, hopefully we can go R2.5. Settlement: 10.02.13 Slab: 06.03.13 Frame: 08.03.13 Lock-up: 05.04.13 Handover: 03.06.13 Build thread: https://forum.homeone.com.au/viewtopic.php?f=31&t=59555 Brisbane Photography Re: Sarking, Wall wrap sisalation & insullation - what is it 22Oct 14, 2012 8:43 am MalinViktoria Thanks guys! I've added the R1.5 batts to our quote, but asked him for thicker ones and he said it wouldn't be much more expensive but that they might not be able to fit more than R2.0 or R2.5 into the walls. So we'll definitely go with the thickest that can physically fit if the price isn't too much higher, hopefully we can go R2.5. Woo Hoo !!!! If this was Facebook, I'd of hit the "Like" button !!! Seriously though, good choice ! But like I said (and Stewie too) depending on just what brand your builders insulation dude uses you might be limited to R2.0, but I wouldn't be too upset about that if you can't get R2.5, there's the law of diminishing returns, R2.0 will be just fine !! Cheers, P_D . Block settled 07 June 2011 Our little piece of the Interwebs on HomeOne....... viewtopic.php?f=31&t=48577&start=0 Re: Sarking, Wall wrap sisalation & insullation - what is it 23Oct 30, 2012 10:23 pm Hey all, +1 for upgrading to the highest spec insulation as possible. As we will be living on the block, I intend to fit foil sisalation to the western wall our selves. Unless the builder comes back with a good price to do it. We havn't opted to fit internal insulation as I figured it is a pain to run future cables. But I am starting to think that it may be benifitial for zoning only the rooms occupied at nite. Thus more efficient and cheaper to run aircon. What is other peoples thoughts on internal wall insulation? I agree with P_D, electricity prices will only go up. Our Build Here: viewtopic.php?f=31&t=74037&p=1255246#p1255246 Re: Sarking, Wall wrap sisalation & insullation - what is it 24Oct 30, 2012 11:27 pm I was speaking to an energy assessor yesterday about internal insulation, there was more to it than I had realised .......... I forget the full story, but he did say it was a good idea to have it around the laundry / bathroom / WC walls. The reason for this was that these are not considered "conditioned spaces" and so your builder may not use double-glazing or any other energy-efficient materials. The theory then is that (say) the laundry can heat up (cool down) more than you would require and so having insulation in the internal wall (say between the laundry and the hall) stops the heat transfer from the laundry into the house. There were a couple of other reasons that I cannot recall right now, but I did come away thinking that it was a good idea. If you are worried about future access, maybe you could just drop a conduit through the studs during the framing stage for later use ? Cheers, P_D . Block settled 07 June 2011 Our little piece of the Interwebs on HomeOne....... viewtopic.php?f=31&t=48577&start=0 Re: Sarking, Wall wrap sisalation & insullation - what is it 25Oct 31, 2012 12:28 am Pepsi_Drinker I was speaking to an energy assessor yesterday about internal insulation, there was more to it than I had realised .......... I forget the full story, but he did say it was a good idea to have it around the laundry / bathroom / WC walls. The reason for this was that these are not considered "conditioned spaces" and so your builder may not use double-glazing or any other energy-efficient materials. The theory then is that (say) the laundry can heat up (cool down) more than you would require and so having insulation in the internal wall (say between the laundry and the hall) stops the heat transfer from the laundry into the house. There were a couple of other reasons that I cannot recall right now, but I did come away thinking that it was a good idea. If you are worried about future access, maybe you could just drop a conduit through the studs during the framing stage for later use ? Cheers, P_D Yeah good point, We have 2 bedrooms that are adjacent to laundry and bathroom. The issues I had with cables was in our last house with not enough power points, so spent alot of time in the roof. Probably better to spend the extra on points now, and avoid future problems. Was also looking at the sound proofing aspect as some rooms are adjacent to rumpus/living areas. So was going to fit our own sound proofing in those walls. But havn't found any products that claim to be better than standard insulation batts. So the $1000 the builder quoted to fit them to all internal walls is looking really atractive now. Our Build Here: viewtopic.php?f=31&t=74037&p=1255246#p1255246 Re: Sarking, Wall wrap sisalation & insullation - what is it 26Oct 31, 2012 11:28 am There is also "Soundchek" plasterboard from CSR which will substantially cut down the noise from one side of a wall to the other. http://www.infolink.com.au/c/CSR-Gyproc ... dy-n756007 Stewie Re: Sarking, Wall wrap sisalation & insullation - what is it 27Oct 31, 2012 10:01 pm Stewie D There is also "Soundchek" plasterboard from CSR which will substantially cut down the noise from one side of a wall to the other. http://www.infolink.com.au/c/CSR-Gyproc ... dy-n756007 Stewie Nice one cheers Stewie. From article: "Level 2 features Gyprock® Resilient Mounts, which helps cut noise transmission by up to 75%." It looks like the good's, getting our large volume builder to use it on choosen wall's will most likley be a challage. Won't hurt to ask though. Cheers mate. Our Build Here: viewtopic.php?f=31&t=74037&p=1255246#p1255246 Re: Sarking, Wall wrap sisalation & insullation - what is it 28Nov 01, 2012 5:31 am Those resilient mounts are good but with the furring channel as well you will lose about 60mm from your room. OK on a flat wall but if there is a doorway in it you will have to go for an extra wide jamb to cope with the additional wall thickness. Stewie Re: Sarking, Wall wrap sisalation & insullation - what is it 29Nov 01, 2012 6:12 am claypot Stewie D There is also "Soundchek" plasterboard from CSR which will substantially cut down the noise from one side of a wall to the other. http://www.infolink.com.au/c/CSR-Gyproc ... dy-n756007 Stewie Nice one cheers Stewie. From article: "Level 2 features Gyprock® Resilient Mounts, which helps cut noise transmission by up to 75%." It looks like the good's, getting our large volume builder to use it on choosen wall's will most likley be a challage. Won't hurt to ask though. Cheers mate. There's probably a lot more chance if you ask your builder to use acoustic insulation in your interior walls................ http://www.soundscreen.com.au/Pages/Products.aspx http://www.bradfordinsulation.com.au/Pr ... Batts.aspx These are something they're going to be a lot more familiar with, especially as it's installed just like any other interior insulation that they are used to using ! P_D . Block settled 07 June 2011 Our little piece of the Interwebs on HomeOne....... viewtopic.php?f=31&t=48577&start=0 Re: Sarking, Wall wrap sisalation & insullation - what is it 30Nov 01, 2012 11:13 am Has anyone thought outside the square? I have seen a lot of US UK shows where they line their external walls and roof with sheets of ply board or chipboard. Timber is one of the best insulators available and would probably be a good addition to any other form of sisalation / insulation. I am thinking of building into my roof space and want to keep as much heat out as possible with the fact that the plasterboard will be only 150mm beneath the tin roof, timber might be a solution? Anyone have any experience / advice with using this as insulation? Thanks Andrew Re: Sarking, Wall wrap sisalation & insullation - what is it 31Dec 01, 2013 6:47 am I've heard that you need to have a gap of 20mm between the wall sarking and the brick that goes on the outside. This is to stop the heat transferring through the sarking if in contact with the brick. The same idea for roof sarking. Has anyone heard of this? And if it's the case, do we need to specify this so the builder installs it with a space between the sarking and the external brick/cement tiles. Not sure if it is standard practice to install it this way. I'm looking to use R5.0 ceiling batts, R2.0 to walls as well as sarking to wall and roof. Not sure if this is an overkill for Melbourne... Re: Sarking, Wall wrap sisalation & insullation - what is it 32Dec 02, 2013 6:52 pm No bramsy the 20mm gap minimum in that particular part of the wall is to stop water transferring from the brick to the inner part of the cavity wall. A 20mm gap between the sarking ( usually installed onto a 20mm timber batten ) and the insulation installed between the stud frame makes a still air gap which adds to the effectiveness of the overall insulation of the wall. In your case I'd look to balance your insulation more by going for R 4.0 in the roof but R 2.5 to the walls ( R 2.5 wall batts fit inside 90mm wall studs ). And no it's not overkill, Melbourne can have damned cold winters and reasonably hot summers. Stewie Re: Sarking, Wall wrap sisalation & insullation - what is it 33Dec 02, 2013 7:43 pm bramsy I've heard that you need to have a gap of 20mm between the wall sarking and the brick that goes on the outside. This is to stop the heat transferring through the sarking if in contact with the brick. The same idea for roof sarking. Has anyone heard of this? And if it's the case, do we need to specify this so the builder installs it with a space between the sarking and the external brick/cement tiles. Not sure if it is standard practice to install it this way. I'm looking to use R5.0 ceiling batts, R2.0 to walls as well as sarking to wall and roof. Not sure if this is an overkill for Melbourne... I'm looking at similar for my Melbourne home. Hoping I can afford to get R2.5 in walls and likely R4.0 in ceiling - I can always top up the ceiling insulation later but walls will be stuck as is. I don't think it's overkill to be comfortable in a climate with such drastic variances in temperature. Re: Sarking, Wall wrap sisalation & insullation - what is it 34Dec 03, 2013 11:09 am Quote: I have seen a lot of US UK shows where they line their external walls and roof with sheets of ply board or chipboard. @carmania - I think you'll find that has to do as much about bracing more than insulation although I think you'll find it is not low rated common old construction ply but some kind of sheeting with a much higher R-value. I know that in the US they sometimes cover that ply with sarking or a thermal wrap then put battens over the top and then install the cladding. In your situation for your roof I'd look at an glasswool blanket type of insulation under your metal roofing. I'm sure it would be much more effective although they do add considerably to the thickness of your roofing - typically a 50mm foil backed blanket is rated at 1.1 and a 2.2 blanket is in the vicinity of 150mm thick ( all from memory so don't quote me on those figures ). But they sure as hell keep the hot summer sun out and the heat inside on a cold winters night which is worth its weight in gold in my book. Stewie Vapour permeable wraps are recommended for any climate and main think it is allow walls to breath (i.e. remove water vapour) while at the same time, providing protection… 4 9868 Hey guys building a new place through a volume builder and just wondering if i should complain to the site supervisor as we just had plasterboard installed. Looks like… 0 11472 I am in the same situation, would you be able to give some insights in to this? I am in SA 8 17461 |