This Standard sets out the requirements for solid plaster in buildings to achieve structurally sound, hard, durable and water resistant surfaces. It deals with the preparation, mixing and application of cement based plasters to walls, ceilings and soffits of solid substrates, and stucco on rigid backing and non-rigid backings. The Standard applies to exterior and interior walls where impact loads are limited to soft body impacts associated with domestic use. For use in interior spaces the relative humidity must be less than 90 %.
C1.1.1
Special applications such as squash courts and swimming pools are outside the scope of this Standard.
1.1.2
Gypsum based plaster and modified or proprietary modified plaster coatings are not included in this Part of the Standard.
NZS 4251.1:1998 history
2007NZS 4251.1:2007 Solid Plastering Part 1 - Cement Plasters for Walls, Ceilings and Soffits
1998NZS 4251.1:1998 SOLID PLASTERING Part 1 - Cement plasters for walls, ceilings and soffits