Series 90 Heavy Duty Vertical Sliding

Heavy duty vertical sliding (VS) secondary glazing, suitable for use with treated monumental style sash windows, found in Edwardian and Victorian buildings and for security applications.

Sashes slide within the frame so do not interfere with blinds or curtains. All fixings are concealed within the frame, which may be linked to other frames with a colour-matched mullion/ transom section. Twin brush seals included for high sealing efficiency.

Will reduce heat loss by up to 50% using standard glass and up to 65% with a thermally efficient glass (low emissivity).

Performance:

• Acoustic: Tested in accordance with BS EN ISO 140-3: 1995 for acoustic performance: between 40 and 49 dB can be achieved.

• Thermal: U-values as low as 1.80 W/m²K (timber primary window and low-E glass in secondary glazing).

Approvals:

• Secured by Design (SBD) Accredited.

• ISO 16933 EXV 33.