Construction

Windows are constructed using mitred and mechanically crimped or joined corners, with support chevrons and cleats to provide for accurate alignment. Integral transoms and mullions are installed by scribing the ends and then either screw fixing or bracket fixing into the outer frames. A proprietary sealant to protect against water entry is used on all metal-to-metal joints and cleat joints at assembly.

Opening window frames are designed to be inserted directly into the outer frames using butt hinges or friction stays.

Finishes

The system is available as mill finish, anodised or polyester powder coated (with single or dual colour).

Performance

Products have been tested in accordance with BS 6375 Part 1:1989 (performance of windows and doors - classification for weathertightness and guidance on selection and specification). Test reports are available from all Service Centres.

Glazing

Double glazing is standard and should be carried out to the recommendations of BS 6262. A variety of glazing options are available to maximise thermal and acoustic performance. Each pane of glass is individually inserted into a fully rebated and prepared opening, with the glass retained by beads. Wedge gaskets are to the inside to give internal beading as standard, improving safety and security. External beading is also is also an option on casement and overswing configurations.