Off-standard plastic structures
Feasibility of fabrication of off-standard structures
Trapezoid and triangular plastic windows refer to off-standard window structures.
Shaped windows are mostly of triangular or trapezodial shape. Such solutions are frequently used for glazing of mansards and attic-floor rooms. The production technology do not impose any restrictions on structure sizes but it is necessary to bear in mind that the inner angles of the main frame must be greater than 30 and a minimum acceptable angle for wings is 45.