Browse Forums Windows & Doors 1 Aug 12, 2009 4:04 pm Hi everyone, I am in the middle of renovating my house and will be replacing it's ageing windows with new ones. I am curious to know if it is worth putting double glazed windows into an older brick veneer home that does not have much insulation in the walls. We have added insulation wherever we have replaced plasterboard and have put new insulation in the roof, but most walls have no insulation. Thanks! Re: Replacing windows in old home 2Aug 12, 2009 4:20 pm grahzny Hi everyone, I am in the middle of renovating my house and will be replacing it's ageing windows with new ones. I am curious to know if it is worth putting double glazed windows into an older brick veneer home that does not have much insulation in the walls. We have added insulation wherever we have replaced plasterboard and have put new insulation in the roof, but most walls have no insulation. Thanks! If you're replacing windows anyway then the additional cost on top of replacement would make it worthwhile to have double glazing. The single glazed windows lose the same energy no matter what other insulation you may have - or not have. If you're in Melbourne then I would expect our double glazed windows would work out the same cost. Ed "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 Re: Replacing windows in old home 3Aug 12, 2009 4:44 pm grahzny Hi everyone, I am in the middle of renovating my house and will be replacing it's ageing windows with new ones. I am curious to know if it is worth putting double glazed windows into an older brick veneer home that does not have much insulation in the walls. We have added insulation wherever we have replaced plasterboard and have put new insulation in the roof, but most walls have no insulation. Thanks! Good on you for trying something energy efficient in your major renovation. This is the best opportunity to do something significant (apart from when building new) It depends on what you mean by 'worth' it. If you are on a limited budget you may wish to get a quote for blow in wall insulation instead. Generally, DG is the most expensive component per m2 of insulation. As a general rule get the DG with the least U value that you can afford. The payback for your investment will in the order of ceiling insulation, wall insulation then DG. Read this: viewtopic.php?f=35&t=21484 I am speaking about averages but you lose just as much heat (probably more) due to uninsulated walls. At least with single glazed windows you can cover them up at night with heavy curtains to give you more insulation than DG. Read this: viewtopic.php?p=278870#p278870 If you can afford to do everything even better! Don't forget to weather-seal your doors, vents and grilles (and old windows if you decide to keep them). These can be significant sources of heat loss equivalent to having no wall insulation. Re: Replacing windows in old home 5Aug 12, 2009 5:49 pm ed @ EcoClassic If you're replacing windows anyway then the additional cost on top of replacement would make it worthwhile to have double glazing. The single glazed windows lose the same energy no matter what other insulation you may have - or not have. If you're in Melbourne then I would expect our double glazed windows would work out the same cost. Ed Just wondering Ed do you mean your double glazed windows would work out the same/similar cost as most other manufacturers single glazed windows or is this my wishful thinking? Or do you mean windows vs insulation. Re: Replacing windows in old home 7Aug 12, 2009 7:36 pm nomad Just wondering Ed do you mean your double glazed windows would work out the same/similar cost as most other manufacturers single glazed windows or is this my wishful thinking? Or do you mean windows vs insulation. There is a wide range in prices for SG or DG. The ranges can overlap. Taking the base case of single glaze, aluminium, fixed lite or sliding window at $125/m2 then: Double hung and awning is double the price Casement add 40% on top of that. Add 65% for timber frame Add 80% for thermally improved frame Double it for a commercial version Add 30% for double glazing. Therefore a single glazed timber casement window might be more expensive than a double glazed, aluminium awning window. Re: Replacing windows in old home 8Aug 12, 2009 10:06 pm nomad ed @ EcoClassic If you're replacing windows anyway then the additional cost on top of replacement would make it worthwhile to have double glazing. The single glazed windows lose the same energy no matter what other insulation you may have - or not have. If you're in Melbourne then I would expect our double glazed windows would work out the same cost. Ed Just wondering Ed do you mean your double glazed windows would work out the same/similar cost as most other manufacturers single glazed windows or is this my wishful thinking? Or do you mean windows vs insulation. Bam ^ Pretty sure he meant the first one Yes, that's right. Not all but most, and especially some manufacturers... and better quality & performance than nearly all. PVC slightly dearer than aluminium... In aluminium awning & casement almost same price. In PVC sliding, casement, awning and tilt & turn all same price. Ed "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 Re: Replacing windows in old home 9Aug 12, 2009 10:57 pm ed @ EcoClassic Yes, that's right. Not all but most, and especially some manufacturers... and better quality & performance than nearly all. PVC slightly dearer than aluminium... In aluminium awning & casement almost same price. In PVC sliding, casement, awning and tilt & turn all same price. Ed I'm impressed, and i'm sure your windows would offer better quality etc than a lot of those brand names to. Goes to show what a rip off some of those other crowds must be. Re: Replacing windows in old home 10Aug 13, 2009 12:00 am ed @ EcoClassic Yes, that's right. Not all but most, and especially some manufacturers... and better quality & performance than nearly all. PVC slightly dearer than aluminium... In aluminium awning & casement almost same price. In PVC sliding, casement, awning and tilt & turn all same price. Ed ed @ EcoClassic Our standard price nominally 2100 x 850 .
Double glazed 12mm air gap KD reveals EcoTech Aluminium = $415 Double glazed 12mm air gap u Value 3.5, N4 Based on these quotes then they represent about 25-30% less than the industry average according to Reed Construction. Hi, we live in an area where the black soil is prone to a lot of movement. We have an old 50's house with masonite everywhere and nails popping out, warping, rusted etc.… 0 4514 2 8364 Yes, get a builder, make sure he is experienced and a registered building practitioner 5 8978 |