Be aware: These values are for the center of glass only. They need to only be applied to match the influence of various glazing forms, not to compare total window products. Body alternative can drastically influence effectiveness. These values characterize double glazing using a one/2″ air hole. For particulars on https://cosmeticipllasergel69235.theisblog.com/37080681/the-5-second-trick-for-double-glazing