Does the building subfloor require special construction?
The subfloor walls of the building must be capable of supporting the weight of the water. The building subfloor construction does not require unique construction methods but it is important that the subfloor be constructed in a particular manner achieving a predetermined specified standard. The subfloor must incorporate the cell compartments and a service corridor for inspection and to provide access to the cells and the plumbing and reticulation. The subfloor construction must incorporate the fundamentals of good building practice, such as vermin proofing, ventilation, DPC to prevent rising damp and termite barriers to prevent termite infestation.
