Seven Tips to Picking a Quality Waterproofing System

When choosing a waterproofing system, there are several factors that should be taken into consideration. The right waterproofing system should:

1. Provide Factory Controlled Membrane Thickness — Sheet waterproofing membranes are manufactured in a controlled environment, eliminating thickness variations found in field-applied systems. Thin spots can lead to a premature failure in the waterproofing system.

2. Accommodate Building Movement— Waterproofing systems need to be flexible enough to withstand structural and thermal movement, and versatile enough to provide design options for each application.

3. Perform in Ponded Water Conditions – Decks will hold water. The waterproofing membrane must withstand ponded water and constant damp conditions.

4. Resistant to Roots and Decay – Roots are very aggressive and can penetrate some types of waterproofing materials. The waterproofing system must be resistant to roots and should not deteriorate in damp environments.

5. Puncture Resistance – Waterproofing membranes must be tough and highly puncture resistant to withstand potential damage during and after installation. Protection layers will provide protection, but there will be times during the construction process when the waterproofing membrane will not be covered.

6. Secure Seams – Sheet membranes are seamed together in the field to form a continuous waterproofing barrier. The seams must be the strongest part of the system, not the weakest.

7. Proven Performance History — Make sure the company behind the waterproofing system has a history of proven performance on projects similar to yours.

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