Zyle Fenster – Bespoke Aluminium and Aluclad Window Specialists

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Timber Flush Casement Windows

Timber Flush casement windows offer clean lines and classic finishes to suit a wide variety of homes, from ultra-contemporary residences to characterful older buildings. With smooth lines, they sit beautifully within the frame, but they offer more than just sleek aesthetics – they are Secured By Design (SBD) certified too.

They can open outwards or top or side hung and can be supplied fully reversible to enable external glass to be cleaned safely from the inside – perfect for high-rise developments.

We offer four glass options mounted in hardwood of softwood frames. Double and triple glazing is available, and the Uw rates for thermal containment will impress. With double gasketing, weather containment is assured; and beading is mounted internally to enhance security.

Performance information on Timber Flush Casement Windows is detailed in the table below.

Glazing beads
External Traditional putty glazed
Frame
56 x 90 mm – Standard. Manufactured using mortise and tenon joints, glued and mechanically fixed.
Sash
46 x 68 mm – Standard.

Sill Projection

50 mm, 60 mm, 70 mm, 80 mm, 90 mm, 100 mm, 110 mm
Wood moisture content
12-19%.
Glazing beads
Internally Beaded.
Material
Engineered redwood – Standard. Engineered hardwood, Accoya, European oak.
Finish
Three coat spray applied factory finish using water based micro-porous paint/ stain.

Colour

White – RAL 9016 – Standard. Any RAL – from RAL classic range. Stain – from TRC stain range.
Glazing
Double glazed, 4/16/4 Low-E – Standard.
U-value
1.2 W/m²K double glazed – 0.8 triple glazed W/m²K.
Perimeter spacer bars
White warm edge perimeter spacer with white warm edge integral spacers – Standard. Silver and Black spacer optional.
Frame profile moulding
Ovolo 22mm, Ovolo 18mm, Lambs Tongue 22mm, Lambs Tongue 18mm.
Trickle ventilation
Through sash head trickle ventilator. EA 1700, 4400, 5000 mm²
Security
Can conform to PAS 24

Timber Flush Casement Windows Gallery