Browse Forums Windows & Doors Re: Best way to block freeway & train noises via windows 4Aug 01, 2010 4:13 am Change is what we need! Can we? YES WE CAN!!!!! Re: Best way to block freeway & train noises via windows 10Aug 02, 2010 6:43 pm Visionarii Brad The lowest uValue available in Viridian single glazing is 3.6 using comfort plus. Given the relative price competitiveness of double glazing vs Comfort Plus nowadays, I would probably ask for quotes with a price option for both types of glazing and their relative WERS performance data. Then you can sit back and decide after considering all the cost and performance options of your window quotes. ----- Now there are U values, and there are U values. Since the U value represents the transmission of heat in watts per square metre per degree celsius, and Low-E operates only on radiant heat, whereas double glazing with its air insulator works on conducted heat, they really can't be compared anywhere except some piece of software. Where will a home generate sufficient radiant energy to lose heat through windows at any rate comparable to conducted heat loss? It won't. Low-E in laminated form used to be worthwhile to stop radiant heat entering the North and West facing windows via sunlight, that was until Viridian decided that unless you got a thermal assessment done for your home by Viridian, they would not guarantee it. Why? Because the temperature differential between outside and inside has been causing spontaneous fracture of the laminated Low-E due to thermal shock. So they offer the non-laminated variety, and that in single glazed form is too damn difficult to clean. But as I say, Low-E is ONLY useful for RADIANT heat and doesn't stop any conducted heat, for that you need double glazing... 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 Our standard double-glazed window is tested to achieve, Rw 34, and can be glazed to suit Rw 39. The price is good too... 3 9475 Hi, I have a steel frame house which was built 2 years ago. When you are down stairs you can hear clunking noises when someone is walking around. We were told if you… 0 4461 4 9068 |