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Rationel and VELFAC
At Prime Windows, we provide an array of top quality Alu-Clad windows.
Supplied and manufactured by Rationel and VELFAC, we have been long standing admirers of Rationel and VELFAC and truly believe there is nothing better on the market.
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Velfac V200
The VELFAC 200
The signature VELFAC frame combines durable external aluminium with natural, welcoming internal timber. By placing the moving aluminium sash directly in front of the fixed timber frame the window delivers a ‘floating sash’ effect, further emphasised by the recessed weather seal. The slim frame maximises natural light while uniform sightlines deliver an identical external appearance for every window unit, irrespective of opening function, manual or motorised operation, or whether double or triple glazed.
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Proven to withstand the most extreme weather conditions, the external aluminium frame also never needs repainting for the lifetime of the installation.
VELFAC windows offer U-values as low as 0.8W/m2K for triple glazed units. The slim frame contributes to excellent thermal (and acoustic) insulation as glass is a better insulator than the frame.
Sustainability is fundamental to the VELFAC design philosophy. All materials used are responsibly sourced, wood treatments are water-based, and every window unit is 93% re-usable.
VELFAC 200 windows are Secured by Design approved and offer a range of security features including internal glazing beads (to prevent the external removal of glass panes), and multi-point locking systems. The external aluminium frame is also highly resistant to forced entry.
VELFAC offers a range of glazing options to customise window performance, including a selection of opaque designs for added privacy and security. VELFAC-designed handles, hinges, restrictors and other accessories are also available.
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The standard VELFAC frame features polyester-powder coated external aluminium and painted or lacquered internal timber. The frame can be finished in different colours inside and out in any of the full range of RAL colours, or in a granite or anodised coating (aluminium only).
VELFAC offers a 12 year comprehensive product warranty on all windows, and five years on all casement, sliding, and external doors.
Rationel FORMA
FORMA and FORMAPLUS
Designed to complement traditional British architecture, FORMA and FORMAPLUS windows feature timeless details, such as bevelled edges and angled glazing beads, which make these windows the ideal fit for classically styled homes or older properties. Optional glazing bars add the perfect finishing touch.
FORMA – key features and benefits
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Solid wood frame
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Life expectancy of 60 years
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Double or triple glazed
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Available in more than 200 colours
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Meets Secured by Design standards
FORMAPLUS – key features and benefits
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Solid timber frame externally clad in aluminium
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Life expectancy of 83 years
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Double or triple glazed
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Available in more than 200 colours
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Dual colour frames at no extra charge
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Meets Secured by Design standards
Rationel Aura
AURA and AURAPLUS
The ideal window for modern and contemporary homes. The sleek, flat frame offers clean lines and a flush finish, adding a touch of Scandi-style to every room. Add glazing bars for extra detail or keep things simple with beautiful, uninterrupted glass.
AURA– key features and benefits
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Solid wood frame
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Life expectancy of 60 years
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Double or triple glazed
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Available in more than 200 colours
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Meets Secured by Design standards
AURAPLUS – key features and benefits
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Solid timber frame externally clad in aluminium
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Life expectancy of 83 years
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Double or triple glazed
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Available in more than 200 colours
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Dual colour frames at no extra charge
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Meets Secured by Design standards