A partition wall is "an internal wall used for the purpose of subdividing a storey of a building into sections and which supports no load other than its own weight and wall fixtures.
Also, "lightweight material" means:
any sheet or board material such as timber board, plywood, fibreboard, plasterboard / gypsum board, corrugated metal sheet or polycarbonate sheet.
Partition walls are given grades. These are related to the level of activity in adjacent spaces and the degree of care the partition is likely to receive. Grades are also determined by the structural and functional performances of the partition.
Water vapour resistance
Access- door openings- access panels, hatches
Loadings from fitting
Access for services such as electrical ducts etc
Effect of solar or environmental heating.
Contamination from dirt, fumes, chemicals, humidity
Load imposed by partitions
Load imposed by adjacent structure
Structural support and functional areas
Wind loads and air pressure
Strength and robustness
Fixtures and fitting