Notice: These values are for the middle of glass only. They need to only be utilised to check the influence of various glazing kinds, not to compare total window products. Body selection can significantly have an effect on efficiency. These values signify double glazing with a one/two″ air gap. A https://secondaryglazing39526.loginblogin.com/44501231/an-unbiased-view-of-secondary-glazing