Class 10b are non-habitable structures being a fence, mast antenna, retaining walls, swimming pools or similar.
There are some minor energy limitations with Class 10b structures associated with other classes of buildings. However these restrictions or requirements are contained within the relevant clauses relating to the Class 1, or Class 2-9 buildings and are not specifically considered in isolation for Class 10b structures.
Please refer to other associated classes of buildings for energy efficiency requirements.