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Thermo-Nordic Pine Square-Edged Open Cladding: Vertical 20 x 70mm Boards on a New-Build Home

2 min read

Thermo Pine weathered

Duffield Timber supplied 20 x 70mm Thermo-Nordic Pine boards in our square-edged open cladding profile (DTC49) for this new-build family home. Fitted vertically and left uncoated, the cladding is shown here after 12 months of natural weathering.

This new-build home is clad in Thermo-Nordic Pine from Duffield Timber, machined to our square-edged open cladding profile at 20 x 70mm. The boards run vertically in long lengths up the front gables, with an open gap between each one. 

Modern wooden building under construction with tall glass windows and vertical cladding; a dirt and gravel site with equipment and a cloudy sky.
Thermo-Nordic Pine open cladding being fitted to a new-build home

Open cladding leaves a narrow gap between planed, square-edged boards, so each board is defined by its own shadow line. Here those lines run the full height of the gables, and the shadows shift as the sun moves across the façade through the day.

Low-angle view of a modern house with vertical wooden cladding, large glass windows, and a sloped roof against a blue sky.
Low-angle view of vertical 20 x 70mm Thermo-Nordic Pine boards with open shadow gaps

Thermo-Nordic Pine (Pinus sylvestris) is slow-grown Scandinavian pine, heat-treated at around 212°C in an oxygen-free atmosphere with no chemicals. The process raises it to Durability Class 2 and significantly reduces swelling and shrinkage. That matters for open cladding, where the edges of each board are exposed as well as the face, and stable boards help keep the gaps between them consistent.

Modern wooden house with large glass walls and a glass balcony, featuring A-frame roof sections and a green lawn under a clear blue sky.
New-build home clad in uncoated Thermo-Nordic Pine after 12 months of natural weathering

The owners chose to leave the cladding uncoated so it would silver naturally and settle into its surroundings. Uncoated Thermo-Nordic Pine weathers from its original caramel-brown towards silver-grey, and the final photograph shows the house after 12 months.

For the same profile in a different species, see our Thermo-Ayous open cladding in Selby. Planning a project of your own? Explore our cladding range, or get in touch with our team.

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