Our Tanalised TGV exterior cladding is machined from quality redwood. The tongue & groove joints allow adjoining boards to interlock while still allowing some movement which may occur when timber responds to weather and moisture conditions. After machining the TGV boards are pressure treated with next generation Tanalith-E preservative.
This treatment helps protect the timber against decay and fungal attack and provides an increased service life to products treated only with standard dip treatment. All cross-cuts should be treated twice with Ensele end grain treatment to maintain the timbers resistance to moisture. This means we are able to provide a 15 year Manufacturers warranty on this redwood shiplap – see the bottom of this page for more details
Tanalised TGV cladding is nominally sized at 25mm x 150mm, but the finished size is a substantial 20.5mm thick and with approximately 135mm cover. Board length availability is variable; we normally keep pack lengths of 3.6 metres and 4.8 metres but at times only 3.9 metres and 5.1 metre lengths are available.
Colours can be maintained and enhanced where required by using Osmo Country Colour, Osmo Natural Oil Woodstain or Treatex exterior oils. If the timber has gone grey the timber appearance can be rejuvenated with Osmo or Liberon wood cleaners.
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