Heritage ‘Stepped’ Windows

This aluminium window system is designed as a slim-line and thermally efficient replacement for steel windows. As part of our Heritage Range it uses steel look-a-like profiles which will maintain the character and integrity of your period property. Finishing touches such as optional welded corners and traditional furniture complete the classic look. Our Heritage Windows have successfully been used in grade II listed buildings and conservation areas.

Our Heritage Windows will be a great improvement on your old steel windows. They use the latest ‘Polyamide’ thermal break barrier technology and have high security Chelton locking, which locks your windows on three sides - making them as strong and resilient as steel windows but at a fraction of the cost. Due to their high specification our Heritage Windows are suitable for new build, replacement and refurbishment projects.

Technical Specifications

The sizes detailed below are for guidance only, if the sizes you require are less than the minimum or exceed our maximum recommended sizes - please ask our technical department for advice.

Recommended Sizes - Top Hung
Min. Width (mm)	350
Max. Width (mm)	1250
Min. Height (mm)	350
Max. Height (mm)	1250
Max. Weight (Kg)	50

Recommended Sizes - Side Hung
Min. Width (mm)	350
Max. Width (mm)	650
Min. Height (mm)	350
Max. Height (mm)	1250
Max. Weight (Kg)	50

Window Performance
Energy Rating 1.8 U Value W/M²K Pending Air Permeable Pending Water Tightness Pending Wind Resistance Curved / Arched
These statistics apply for: Double-glazed units, argon gas filled (low-E, en=0.05, soft coat), 16mm or more, swiss V warm edge spacerbar. Please ask for more details.

Specifying - Suitable Applications
Can be specified for light commercial and domestic applications. Meets building regulations for new build. (For Oct 2010) Meets building regulations for replacement and refurbishment projects. (For Oct 2010) Suitable for use in listed buildings, heritage / conservation areas and period properties.

Technical Manuals - Downloads
Section Identification (Profiles, Combinations, Sight-lines)	(0.8 Mb)
Bay Details (Kite mullion bay details, technical drawings and images)	(0.8 Mb)
Measuring Advice (How to take odd leg measurements - instruction sheet)	(0.3 Mb)
Glass Safety (Glass safety guidelines - where you must use safety glass)	(0.1 Mb)

Having problems downloading? - Click here »

Key Profile Dimensions
Outerframe Depth (mm)	47
Sash Depth (mm)	56.5
Glazed Sealed Units (mm)	24 (4 x 16 x 4)
Projection Cill height - Optional (mm)	25
Head Extension - Optional (mm)	32
Transom / Mullion - If Required (mm)	50

Please Note:
The details for the sight-lines are illustrated in our Section Identification. Please view this document and / or contact our technical department for more information.

Quote - Downloads
Quote Checklist (Fill in the checklist and post, email or fax it across to request your quote)	(0.3 Mb)

Order - Downloads
Order Checklist (Fill in the checklist and post, email or fax it across with company letter headed paper to make an order.)	(0.3 Mb)

Technical Drawings - Downloads
Technical drawings can be provided in DWG or DXF format, please contact us.

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