BS EN 1015-19:1999 PDF Download

BS EN 1015-19:1999 is a standard that outlines the methods of testing for mortar used in masonry. Specifically, it focuses on determining the water vapor permeability of hardened rendering and plastering mortars. The standard provides guidance on how to measure the rate of moisture transfer through specimens of these mortars that are exposed to saturated salt solutions.

The testing procedure described in this standard helps assess the ability of rendering and plastering mortars to allow water vapor to pass through. This is an important characteristic as it determines the ability of the mortars to control moisture levels within masonry structures and prevent the occurrence of dampness and related problems. By subjecting the specimens to saturated salt solutions, the standard mimics real-world conditions and enables the measurement of water vapor permeability.