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System 15

Secondary Glazing

Metal Technology, an acknowledged leader in window and door systems has designed a comprehensive secondary glazing system for use in both commercial and domestic applications. Secondary glazing options include side hung and vertical sliding configurations.

Materials

Aluminium profiles are extruded from aluminium alloy 6060T6, T5 or T4 complying with the recommendations of BS EN 12020-2 / BS EN 755 Parts 1-9.

Metal Technology can provide tailored U-value calculations using their dedicated estimating software to calculate overall project average window U-values for their full range of systems.

Construction

Vertical/Horizontal Sliding Windows

Outer frames are constructed with mitred corners which are jointed using an extruded corner cleat fixed with stainless steel self tapping screws.
Inner frames are constructed with mitred corners which are jointed using an extruded corner cleat fixed with stainless steel self tapping  screws, except at the meeting sections where the bars are square cut and secured by means of a stainless steel self tapping screw.

Side Hung Windows

Outer/inner frames are constructed with mitred corners which are jointed using an extruded corner cleat, fixed with stainless steel self
tapping screws.

Lift Off Windows

Outer frames are constructed with square cut ended bars which are screwed together with stainless steel self tapping screws. Inner frames have mitred corners which are jointed using an extruded corner cleat, fixed with stainless steel self tapping screws.

Finishes

The range of sections can be provided in either of the following ranges of finishes:

  1. Anodised to BS 1615 or BS 3987
  2. Powder organic coated to BS 6496

Metal Technology's powder coating is produced to Qualicoat standards.

Glazing

Glazing is by means of an extruded channel gasket, which is wrapped around the glass, prior to the assembly of the frame members around the unit. Window can accommodate glazing from 4mm to 6.4mm single glazing.

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