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What is WVTR in Waterproofing Membranes about?

This document discusses water vapor transmission rate (WVTR) and water absorption, which are important performance metrics for waterproofing membranes. There are three main modes of water transfer: vapor permeability, hygroscopicity, and capillarity. WVTR is measured using ASTM standards like E96, which employ dry cup, wet cup, or inverted wet cup methods to determine the rate of vapor diffusion through a material. Higher water absorption can cause materials to swell and lose strength over time, compromisin

Author

ZenZen F Czora

Language

EN