TYPE STANDARD heat transfer coefficient Uw of 1.35 W / m2K, depending on the species of wood, openings, type and size insulating glass Thickness: Covers 68 mm / sash 68 mm / Glass windows 24 mm permeability of water, air and wind are determined in tests conducted in laboratories INCERC, Cluj - Napoca, in accordance with the following standards EN ***** and SR EN 12207 AC***** wind resistance (pressure test) - class 4 / resistance to wind (frame deformation) - class C / air permeability - class 4 / tightness - clasaE900 ------------ COMFORT tYPE Uw heat transfer coefficient of 0.95 w / m2K, depending on the species of wood, openings, type and insulating glass sizes. Thickness: 78 mm frame / sash 78 mm / 38 mm glass windows ------------- TYPE ULTRA This type of joinery is typical of passive houses, with a heat transfer coefficient Uw 0.85 w / m2K, depending on the species of wood, openings, type and size of the glass insulator. Thickness: 68 mm frame / sash 92 mm / 48 mm glass windows Wood - aluminum is an unbeatable combination, joining in an elegant wood-resistant properties of aluminum, resulting in a window that does not require maintenance. ------------- TYPE LUX Uw heat transfer coefficient of 0.95 W / m2K, depending on the species of wood, openings, type and size of the insulating glass. Thickness: 84 mm frame / sash 88 mm / 48 mm glass windows. - Translated with google