Secco’s inward opening casement windows features thermal break profiles of 65mm or 85mm, allowing for a wide range of glazing. The OS2 window frame is guaranteed by a double rebate seal system while the EBE65 and EBE85 are guaranteed by a three-level sealing weep system. The performance of both OS2 and EBE windows has been tested by the best European certifying labs under the reference standard EN 14351-1.