There is a new option for garden room cladding, LP Strongcore which is distributed in the UK by Hawthorn Timber. New to the UK it has been widely used in the USA on houses and garden buildings. You can see it on display on three buildings at the National Homebuilding & Renovation Show.
cladding
Cladding an interior garden room wall
A recent episode of The House That £100k Built reminded us that cladding an internal wall with the same material as used on the exterior of the building can be a great feature.