There is a large misconception in the waterproofing industry that all cold fluid-applied waterproofing membranes are susceptible to osmotic blistering. But this is not the case. Over the years, costly waterproofing repairs have led to a lack of confidence in using cold fluid-applied waterproofing membranes in damp, wet, and immersion environments. Understanding what osmotic blistering is, knowing why it occurs, and choosing the correct product for each job will help minimize the potential for osmotic blisters.