This Siberian larch cladding has a clean finish, with a hidden fix tongue and groove shiplap profile to conceal its fixings. External naturally durable Hardwood Cladding Properties no chemicals added.Tongue and groove secret fix profile gives a shadow gap.Quick and easy to install - no specialist tools required; very little work required to finish onsiteClean finish, specially designed to hide nails and screwsCan clad both horizontally and verticallyClosed board construction protects structures from the elements.Starter boards to be installed with 2 face fixings and all screws must be a minimum size of 4.5mm Diameter and 45mm long in stainless steel.Meets UK and European standard cladding regulations CE, marked to EN14915, BS1186, BS8605Timber quality: A/B GradeSiberian Larch is natural durable wood that can be used externally for decking, cladding, fencing applications without the need to apply any preservative treatments. It is one of the world's most popular natural durable softwoods and has an aesthetically pleasing golden brown colour. Siberian Larch can be stained or oiled. It is also one of the densest commercial softwoods for use on both private and commercial projects. SertiWOOD Range supplies a unique Siberian Larch sourced from the slow growing cold regions of Siberia and selected for the durable heartwood part of the tree. It performs almost as well as well as species like European Oak. It is a dense and resinous and hardwearing wood. The SertiWOOD Range is supplied from sustainable sources and is FSC Certified. Siberian Larch also known as Russian Larch or Larix Sibirica.Siberian Larch weathers to a silvery grey colour if not stained, painted or treated, it has a tendency to exude resin and have surface checking and splitting especially in the hot summer months.This item is delivered direct to you from one of our suppliers, please see our Terms & Conditions for more details.