At Norrsken, we are passionate about conserving energy. The P31A window has been designed from the ground up to be affordable whilst delivering incredible performance and visual appeal with its streamlined, square-edged aluminium exterior.

Made from sustainably sourced, slow-grown timber, the P31A window is a truly high performing triple glazed aluminium-clad timber window. Whole window u-values sit around 0.75 W/m2K and can be as low as 0.67 W/m2K. As is the case with any of our alu-clad products, its powder-coated aluminium casing can be finished in any RAL colour. Interior wood finishes are available in either natural stains or RAL colours.

The window can be produced either as a fixed or outward opening unit with various hinge options. Side hung outward opening windows are traditionally popular in the UK, but top hung and fully-reversible systems are becoming firm favourites among our customers.
The P31A is PAS 24 tested and certified to comply with the UK part Q building regulations.

Incorporating a 48mm triple glazed argon filled glass package (average glass u-value of 0.53 W/m2K) into its 122mm deep frame, the window achieves performance suitable for Passive Houses and other high-performance homes. The frame is designed to be as minimal as possible at only 26mm externally and 44mm internally. The opening sash is also slender at only 54mm externally and 46mm internally. The P31A window has a striking appearance, exceptional performance and is bespoke to your order – crucial in a competitive market.

Build-It Magazine has shortlisted our P31A triple-glazed alu-clad timber window for ‘Best UK Window 2021’ in their annual Build It awards.

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