Launceston Extension Posted byStephen Boyd8 March 201715 December 2020Posted inCladding, Latest News, Lifestyle, Products, SIPS/Timber Frames, Site Photos A typical Cornish granite cottage, extended with a substantial timber frame walls / SIPS roof, to allow vaulted ceiling. Unusual ‘Scandy’ style pop of red, on aluminium Clad Rationel windows with Kiln dried Siberian Larch Cladding.