Larch cladding is naturally durable, tough and relatively cheap. The resins within larch protect the wood against decay and if fitted correctly larch cladding will last for more than thirty years without any chemical treatment or coatings.
Because larch is hard it is ideal for locations that may suffer from physical damage caused by weather or people. This resistance to wear and tear also makes larch suitable for exterior decking.
The one fact that you must take into account is that larch is an unstable timber. By this, we mean that the larch boards will shrink and expand through the year and may also distort or cup.
Providing you follow our installation advice and specifically fix the boards with room to expand, larch cladding will perform very well and last many years with no maintenance.
Like all wood species the colour of larch will fade when exposed to the elements and over time weathered larch cladding will turn grey. Compared to other species, larch tends to weather down quite slowly, commonly taking more than two years to turn fully grey.
For simplicity we use the same grades to describe both the Siberian larch and the dry British larch cladding boards.
GRADE A. Very few knots and many boards will have no knots at all.
GRADE B. Frequent sound knots up to 50mm along all boards. Wet British larch used for rustic products such as waney-edge and feather-edge are always produced from Grade B logs and as such will be knotty.
Prices for larch cladding vary from approximately: £15 / M2 + VAT for waney-edge and feather-edge boards to £35 / M2 +VAT for Grade A larch shiplap.
Because larch is an unstable wood we recommend simple overlapping profiles such as halflap (VHL), shiplap (VSL) and splayed (VSP). We specifically advise against tongue and groove (VTG) profiles for larch cladding and especially profiles that allow for secret fixing. Larch is too unstable and strong for such delicate fixing details.
For wet British larch cladding we offer sawn cladding profiles such as waney-edge (VWE), feather-edge (VFE) and square-edge (VSE).
Larch boards can be installed vertically or horizontally, but be sure to select the appropriate profile. Vertical larch cladding will require a double battening system, while horizontal larch cladding only requires a single battening system.
As with all cladding it is important that you follow some basic rules. Take some time to browse through the Resource Centre. If in doubt give us a ring and we will do our best to answer your questions.
Always fix larch cladding directly through the face of the cladding boards with ring shank nails or screws. Because larch is unstable we strongly recommend that you avoid installing the boards using hidden fixings.
Only use stainless steel nails or screws to fix your larch cladding boards to avoid staining and corrosion.
We recommend that you do not install wet sawn larch during the summer months because it is likely to distort and split. Dry larch can be installed year round but ideally it is better to do so during the cooler months.
We can supply the correct fixings with your cladding.