Browse Forums Windows & Doors Re: Dowell Thermaline - any good? 17Sep 26, 2020 5:42 pm Callifo I got a rough idea from my builder when I was trying to get the house over 7 star rating. To upgrade for all doors and windows from single to double was $8.5k, this one I went with. Then to go from double to double thermally broken was another $15k (they didn't mention thermaline specifically, but I am using Dowel for doors/windows). The difference in the performance figures from double to double thermally broken was small considering the mammoth cost, so I declined. What is the total glazing area? Re: Dowell Thermaline - any good? 19Sep 26, 2020 6:25 pm Callifo I didnt post as I wasn't sure, never worked it out. Now that I have, and assuming I've done it right, it is ~32m2. Okay, so this is roughly $730 per sqm of glazing to upgrade from single glazed to thermally broken double glazed. To compare, my house total glazing area is 51 sqm: windows + 2 sliders (including one 5.6 m 2.4 lift and slide door) + 1 french door and 1 fully glazed laundry door. Those are going to cost me around $70K inc. GST total (supplied). Argon filled triple glazing in 93 mm European profile with Low E glass for West and North facing windows, U values ranging between 0.5 and 0.7 (U value of 0.5 corresponds to R value of 2.0). This is roughly $1370 per sqm of glazing. Re: Dowell Thermaline - any good? 20Oct 22, 2020 12:58 pm Callifo I got a rough idea from my builder when I was trying to get the house over 7 star rating. To upgrade for all doors and windows from single to double was $8.5k, this one I went with. Then to go from double to double thermally broken was another $15k (they didn't mention thermaline specifically, but I am using Dowel for doors/windows). The difference in the performance figures from double to double thermally broken was small considering the mammoth cost, so I declined. Wow. I didn't realise it would cost so much to upgrade! Thank you for sharing @Callifo it is really useful to have a rough guide when making these choices. Countrybuilds Victoria 9 24883 Thank you. Do I use timber floorboards for stairs or do people use timber treads? Or is both the same? 6 7388 Hi, I have had them in the past and the pros are: Versatile, i.e many different colours and styles to choose… 1 6998 |