A slim section vertical sliding system suitable for treating traditional sash windows often found in Heritage properties. Spring balances fully support the sliding sashes which also contra-slide to assist with cleaning. A minimum frame to frame gap of 75mm is recommended.
Warmer
A Series 20 window will reduce heat loss by up to 50% using standard glass and up to 65% with a thermally efficient glass (low-e). High performance brush seals will almost eliminate drafts and ensure much greater comfort near the window.
The effectiveness of the insulation is measured by U-values, the lower the figure the better the insulation.
Quieter
A Series 20 window set 100mm apart from the existing window will reduce noise levels by more than 40dB (decibels). In most circumstances this will achieve World Health Organisation guidelines for quiet living and working environments.
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Selectaglaze is consulted before specifying.
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| Uniclass (?) | Pr_30_59_98 Window units | |