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System information

VELFAC Ribo wood/aluminium is a window and door system characterized by traditional elegance.

It consists of windows, casement doors, patio doors, and sliding doors in wood/aluminium, produced as a traditional timber frame/sash model with an external aluminium cladding.

The windows are suitable for traditional English style homes and the patio doors are designed for patios, balconies in multi-storey buildings, and French balconies.

Technical specifications

Outward opening windows and casement doors in wood / aluminium
Inward and outward opening patio doors in wood / aluminium
SBD accredited
Uw value: down to 0.8 W/m²K
Glazing options: 32mm double or 52mm triple glazing
A comprehensive 10 year warranty on windows and 5 year on all door types

Window design

The design consists of the combination of sash profile and glazing bars.

Frame/sash profile
In VELFAC Ribo wood/aluminum, the fixed and opening functions look different. The fixed consist of a slim frame profile only, while the opening functions consist of a wider frame/sash profile.
If you want the same looks throughout the project, a fixed casement can be supplied in stead of the fixed light.
You can also choose between 3-layer and 2-layer glazing.

Mullions and transoms
The frame can be divided with mullions and transoms. This gives the option of different opening functions in the same element.

Glazing bars
Each sash can be divided with glazing bars to achieve a specific design expression. VELFAC Ribo wood/aluminium is available with horizontal, vertical and cross glazing bars.

Frame/sash profiles

Mullions and transoms

Glazing bar options in general

VELFAC Ribo wood/aluminium sliding door with 68mm glazing bar

Glazing bar options for sliding door

Colours, materials and surface finish

VELFAC wood/aluminium windows and casement doors are made of hard-wearing materials that require a minimum of maintenance.

We are careful when selecting suppliers and when specifying materials. We put great effort into processing and surface treatment. These are all cornerstones of a quality product.

The exterior aluminium frames are polyester powder coated. The surface reminiscent of paint on a car.

For frames, mullions and transoms we use FSC®-certified pine.

The surface treatment of wood and aluminium are described below.

External colours and surface finishes

Internal colours and surface finishes

Aluminium profiles polyester powder-coated in various colours

Material description and surface treatments for aluminium

Pine wood for window and door production

Material description and surface treatments for wood

Shaped and curved elements

VELFAC also manufactures windows and doors with oblique angles and curved heads, and completely round windows.

Some shapes can be produced with opening sashes - others only as fixed lights.

For shaped elements there are a few structural rules that must be observed - contact VELFAC for more information.

31mm glazing bars are not available in shaped element sloping more than 45°.

Examples of shaped and curved windows

Min./max. sizes and calculation of free opening rules, all opening functions

Here you find the min./max. sizes for all opening functions in VELFAC Ribo windows and patio doors.

To calculate the free opening, please use the formulas below.