Why the Sapa Crown system make ideal Crittall replacement windows

The aluminium Sapa Crown Casement Window System offers a choice of side or top hung windows and fixed lights as individual elements or as truly co-ordinated multi-light windows. The system’s capabilities and range of options, including those providing structural performance, are particularly comprehensive and can accommodate a vast array of aluminium double glazing window designs.

The Crown double glazed system is fully weather stripped to achieve the highest levels of weather performance. All aluminium profiles incorporate polyamide thermal barriers to meet the latest Building Regulation requirements in terms of U values and window energy ratings.

Sapa Crown aluminium double glazing is the ideal replacement for single glazed crittall windows as has slim sight lines, as was designed as the modern replacement to the old Monarch Monaframe system. The Crown windows are available in a choice of either a squareline interior, with a flat outer vent or a softline interior with an ovolo outer vent, or indeed a mix and match.

Energy Efficient Energy Rated Replacement Double Glazed Windows
Energy Efficient Energy Rated Replacement Double Glazed Windows - Now available in slim aluminium profiles

Crown aluminium windows can meet and surpass the area weighted average U values stipulated in Part L of the Building Regulations. Plus with the “A” rated sealed unit specification used by Hazlemere Window Company as standard on all replacement windows, lower U values can be achieved using double glazed units with enhanced thermal insulation, such as ‘soft coat’ low emissivity glass, argon gas filling and thermally broken spacer bars (all standard on all Hazlemere replacement aluminium or PVCu windows).

When looking to match the aesthetics of existing crittall windows, the Sapa Crown aluminium window system offers the best looking double glazing option. In addition the slim aluminium Crown double glazed system has some key product features and benefits.

Firstly, it is highly versatile and comprehensive – creates top hung, side hung or fixed light windows, secondly it has a patented security bead design, and thirdly it meets BS 6375: Part 1 Severe Exposure Category 2000. In addition it offers a wide choice of colour finishes options including dual colour, plus is compatible with other Sapa window and door products. If required the Crown system incorporates trickle ventilators to meet Building Regulations needs, has a great choice of framing shapes to suit all styles of homes, can incorporate mullions and transoms with structural capabilities and has the technical ability to create glazed screens or bay windows with corner junctions at any angle between 90° and 270°

Find out more about aluminium replacement windows


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