Company: Tarspray cc
Tel: (011) 826-2411
Address: Labor Construction Co (Pty) Ltd
The Riftec Kit House consists of:
- external and internal wall panels which are composite units comprising a timber frame with infill boards. The panels are plastered both sides with a resin and fibre-modified plaster 3 mm thick;
- treated timber posts which are cast in concrete footings. Treated timber ground beams span between posts. The wall panels are screwed or bolted to the posts, ground beam and to each other. All joints are sealed;
- the floor can be rammed earth, gravel, soil-cement or conventional concrete, preferably laid over a plastic damp-proof membrane;
- the roof may be profiled galvanised steel sheet, or fibre-cement sheets or Dektile self-supporting steel roof tiles.
After erection all wall surfaces are painted.
Dwellings can be extended by adding additional rooms and upgraded by installing ceilings and insulation.
This Mantag certificate covers the use of the Riftec Kit House building system for the construction of simple, single storey, detached dwellings and ancillary free-standing buildings such as toilets in selected areas in all climatic zones of Southern Africa. However, calculations show that small houses (with a floor area of less than 30 m2) will not meet Agrément South Africa`s minimum thermal criteria in any of the climatic zones unless they have insulated ceilings. They can therefore only be regarded as temporary shelters until insulated ceilings have been installed.
Mantag certificates are a distinct type of Agrément certificate, based on acceptable safety and health criteria for houses and related outbuildings, non-residential schools and primary health-care centres in areas where the local authority is of the opinion that the type of construction is appropriate, given that in these areas it is of paramount importance that buildings be erected at the lowest possible cost.
If the conditions of this Mantag certificate are complied with, Agrément South Africa is of the opinion that the Riftec building system will be fit-for-purpose, and can therefore be regarded as complying with the functional requirements related to safety and health contained in the National Building Regulations. In general, however, Mantag criteria permit a lesser level of performance than would be expected from buildings erected in accordance with the deemed-to-satisfy rules contained in SABS 0400-1990, The application of the National Building Regulations.