Marc
Addicted to ArboristSite
Ok, conversion is 5.671.
Yay math.
So 0.80 to 1.20 metric is ... 0.141 to 0.213. Wow. Any thing under 0.20 here is considered high performance, and is probably triple glazed.
Common U-factors will all be around 0.20-0.30... especially now that we have a tax rebate for U-factors under 0.30, so every window maker and their brother has got their window down to at least 0.30.... that range would be 1.13 to 1.70 metric.
Yay math.
So 0.80 to 1.20 metric is ... 0.141 to 0.213. Wow. Any thing under 0.20 here is considered high performance, and is probably triple glazed.
Common U-factors will all be around 0.20-0.30... especially now that we have a tax rebate for U-factors under 0.30, so every window maker and their brother has got their window down to at least 0.30.... that range would be 1.13 to 1.70 metric.