AS 2455.2:2019 pdf free
AS 2455.2:2019 pdf free.Textile floor coverings – Installation practice
The contractor shall request the purchaser to supply the following information, where appropriate:
(a) The position and depth of electric power cables and cold and hot water pipes.
(b) The nature of any additives, curing agents, parting compounds, surface treatments or similar used in the construction of the subfloor, as these may adversely affect any floor adhesive used.
(c) Particulars and location of damp course to ensure that the subfloor is free from rising moisture.Where the subfloor is constructed on fill, hardcore or the ground, the contractor shall be advised as to whether the subfloor has been protected by the recommended means of a continuous impervious membrane with a minimum thickness of 0.2 mm.
(d) If the subfloor is concrete, it shall be ascertained whether the concrete is sufficiently dry when tested in accordance with Clause 4.2(C).
NOTE 1 Concrete waterproofing additives and curing compounds are not considered a substitute for a continuous impervious membrane.
NOTE 2 Certain concrete waterproofing additives and curing compounds may adversely affect adhesives used in the installation.
(e) The location and type of airconditioning, or other type of space heating not mentioned above.
(f) The position and depth of any other structural elements which may affect the work or the quality of the work being undertaken by the contractor.
(g) Assurance that the subfloor on which the textile floor covering is to be installed shall be obtained clear of the tools and goods of other trades.
(h) Assurance that the site meets occupational health and safety requirements, and is asbestos-free.In addition, for concrete subfloors, the contractor shall request the purchaser to supply the following information, where appropriate:
(a) A written report by a competent person giving the moisture content (RH %) and alkalinity (pH) level of the concrete subfloor. All testing shall be carried out in accordance with the floor materials and instrument manufacturer’s instructions.
NOTE See Appendix B.
(b) The position and depth of heating elements, whether electric or heated water pipes and whether these have been insulated.
NOTE Unless the heating elements are insulated sufficiently, hot spots can occur which could result, in time, in the failure of the adhesive or the textile floor covering.
(c) Whether the surface is plane, smooth and true to grade.AS 2455.2 pdf free download.
