Larch is one of the most robust coniferous species available for external cladding applications, prized by architects for its resinous natural durability, tight grain structure, and the warm honey tones of its untreated surface.
The fire tempering process — a controlled, precise heat treatment that transforms the structural and surface character of the timber — enhances these natural qualities significantly, improving the cladding’s resistance to fire spread, biological attack and fungal decay, moisture ingress and long-term weathering. The result is a cladding product of exceptional longevity that requires minimal maintenance over a service life measured in decades. Fire Tempered Larch has a long tradition in Scandinavian and Northern European architecture precisely because of these inherent properties, and its increasing adoption in contemporary UK architecture reflects growing appreciation for natural materials that perform as well as they look.
Available in 95mm, 120mm and 145mm widths, in 3m lengths and 16-18mm depth. Both flush and interlocking profile styles are available, with a full choice of installation patterns — horizontal, vertical, diagonal and combined arrangements — to achieve the specific visual effect and planning requirement of each project and elevation.
A fire retardant application can be specified as an additional option for projects with more demanding fire performance requirements. Outer corners and beams are available to provide a complete and finished installation. Fire Tempered Larch co-ordinates with the full Zakuna architectural product range — windows, external doors and entrance doors — for a completely co-ordinated exterior material palette. Visit our Cladding Showcases to see Fire Tempered Larch installed on completed projects.
