Fixed & Hinged Units
Fixed Secondary Windows are generally used in combination with other window styles to provide side lights or over lights particular in the treatment of arched windows. They are also used within partition walls as observation windows for laboratories, control rooms, clean rooms and recording studios.
Summit Double Glazing have a variety of different styles of Fixed Windows:
Very slim sections with minimal dust ledge.
Heavy duty system accepting single glass up to 12mm glass or 24mm sealed glass units for optimum thermal insulation.
Security rated fixed system suitable for observation windows and can be linked to Series 50 hinged casement.
Security rated fixed system with a permanently fitted subframe incorporating a demountable sash to allow occasional access for cleaning or maintenance. It will provide security against outside threats and the absence of a ligature point makes it appropriate for use in institutions.
- They must never be installed across a window requiring access for escape purposes.
- When used in combination with other opening windows there should be a sufficient cavity between the windows to allow access for cleaning.
- Where a window is treated with a fixed panel or series of fixed panels ventilation holes may need to be drilled to the outside to permit air flow and combat condensation.



