When choosing the best blindside waterproofing system, design professionals are rightly concerned about site conditions like the water table, hydrostatic pressure and soil compression. Since the first job of the membrane is to prevent water migration, experienced waterproofing contractors say sites with rugged, uneven substrates should also consider puncture threats. Here’s why.
Once installed, a membrane undergoes weeks of abuse as trades prepare for the concrete pour. Constant pounding from foot and equipment traffic may perforate the sheet if it can’t absorb the blows. On job sites where these conditions are prevalent, lab tests demonstrate pliable TPO membranes have superior puncture resistance over more rigid HDPE membranes.
Watch this video
to see why a puncture-resistant TPO membrane is the best choice for your next below grade waterproofing job.