Browse Forums Windows & Doors 1 Feb 04, 2013 2:01 pm Hi, I live in Melbourne and we are currently renovating our home, we have decided to get quotes on upgrading to double glazed windows/bifolds in the new part of the house, the existing house will not change. Is it worth spending the extra $$$ ? The bifold doors (6no. 820x2040) will be north facing and I don't believe they will receive much (if any) direct sunlight (they open to a fully covered alfresco area) in the summer but will there be a lot of heat loss in the winter? The quote is an extra $1340 +gst to upgrade There is a window in our living area (north facing) which is 3600 x 1800 which will be exposed to the sunlight, an extra $1165 + gst The other windows that we are considering are 2 bedroom windows (800x1300) which are west facing and do get some sun in the afternoon, with these windows we will look at purchasing and external blind to proctect from the summer heat, do we still need to get these double glazed? Extra cost of $235 + gst for one, the other has an existing window which would be taken out and replaced at a cost of $1000. Your advice would be greatly appreciated. Tweety Re: Is double glazing really worth the extra cost? 2Feb 04, 2013 5:10 pm tweety Hi, I live in Melbourne and we are currently renovating our home, we have decided to get quotes on upgrading to double glazed windows/bifolds in the new part of the house, the existing house will not change. Is it worth spending the extra $$$ ? The bifold doors (6no. 820x2040) will be north facing and I don't believe they will receive much (if any) direct sunlight (they open to a fully covered alfresco area) in the summer but will there be a lot of heat loss in the winter? The quote is an extra $1340 +gst to upgrade There is a window in our living area (north facing) which is 3600 x 1800 which will be exposed to the sunlight, an extra $1165 + gst The other windows that we are considering are 2 bedroom windows (800x1300) which are west facing and do get some sun in the afternoon, with these windows we will look at purchasing and external blind to proctect from the summer heat, do we still need to get these double glazed? Extra cost of $235 + gst for one, the other has an existing window which would be taken out and replaced at a cost of $1000. Your advice would be greatly appreciated. Tweety Double glazing is all about stopping conducted heat, it has next to no effect on sun light coming into your home. In a modern, insulated home up to 75% of heat loss (after all other things have been insulated) is through windows... you can halve that with double glazing. Each square metre of glass costs you on-average, around 80 watts in heating for single glazed in Melbourne and 35 watts (EcoClassic) for double glazed. If you heated your home 24/7/365, then the extra cost for single glazing over double glazing would be $78 p.a. per square metre (assuming $0.20/kWh), just adjust that for your window size, your heating frequency and your $/kWh.. 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: Is double glazing really worth the extra cost? 3Feb 05, 2013 5:54 am Do you need to get your renovation assessed for energy efficiency? Re: Is double glazing really worth the extra cost? 4Aug 23, 2013 7:19 pm The extra cost also helps to take a load off the stretched resources of the planet. One day we will look at homes without double glazing the way we look at old hand mangle washing machines! @builderforlife Building inspector and passionate about construction When you need an expert to take a look. do not pay until you are satisfied with workmanship windows require flashing over the head archithrave and up under weatherboards 3 28356 This is one of the reasons I decided to go overseas for my double glazed windows. As the builder indicated, he's worked on many upmarket builds, these were the most well… 13 19372 For your reference Performance Labels: Window assemblies in housing, except timber windows, must be labelled so the label can be seen when it is in situ. For timber… 6 8933 |