# Waterproofing Osmosis Failure ### Issue Image: ![[Pasted image 20241112165719.png]] ## Issue Description: - many types of membrane are subject to Osmotic Failure. - This presents as blistering underneath the surface of the membrane. - For further information on the causes please see [OSMOTIC FAILURE](https://www.rdh.com/wp-content/uploads/2017/11/CCBST-2017-Solutions-Address-Osmosis-and-Blistering.pdf) ## Actions to Prevent this Issue: - [ ] Check that membranes are generally not covered and able to dry out (pedestal pavers and rocks are ok) - [ ] Do not Install Insulation on top of Waterproof membranes