Gemini SF

Window and door system with an slanted rebate

Gemini SF – This system, also known as “Schrägfalzsystem” is popularized by the manufactures of newest cutters. It’s characterized by diagonal rebate of the window frame, with an inclination of 7 to 15 degrees and the lack of main (central) gasket. Window construction water drainage is done by slant part of the wooden framework, rather than as a traditional solution – welded main gasket.