RS ISO 12572: 2016
Hygrothermal performance of building materials and products — Determination of water vapour transmission properties — Cup method


This document specifies a method based on cup tests for determining the water vapour permeance of
building products and the water vapour permeability of building materials under isothermal conditions.
Different sets of test conditions are specified.
The general principles are applicable to all hygroscopic and non-hygroscopic building materials and
products, including insulation materials and including those with facings and integral skins. Annexes
give details of test methods suitable for different material types.
The results obtained by this method are suitable for design purposes, production control and for
inclusion in product specifications

General Information

RS ISO 12572: 2016ADOPTED ISO STANDARDSCivil engineering37Second Edition
Feb 2023
Price: RWF 42,000

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