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Waterproof Membrane at a Government Facility


Recently, a large state government building had leaking water into office areas. As a result, the Department of Administration contracted TMI Coatings, Inc. (TMI) to install a waterproof membrane to contain any liquids coming off of the air handler units. The leaking water was ruining numerous ceiling tiles and causing damage to contents in the rooms below. TMI built cementitious curbing around the air handlers to contain any spilled liquid and then applied a resinous waterproof membrane and protective floor coating.


  • TMI prepared all the concrete surfaces by mechanically abrading and restoring the eroded concrete.
  • Constructed berms around air handlers using cementitious material.
  • A seamless elastomeric membrane was applied to provide a waterproof seal.
  • TMI applied CHEM-RESIST low odor epoxy flooring over the waterproof membrane.
  • Aggregate was incorporated for slip resistance for safety.


TMI worked with the state office to complete the project while most of their employees were working remotely during the Coronavirus pandemic.  The project manager provided an all excellent service questionnaire and commented “Great job, it looks great!”

TMI Coatings before floor coating TMI Coatings Great Job Service Evaluation

With 35 years of experience, TMI Coatings will have your project completed on time and within budget. Contact us today at 651-452-6100 for your free, no obligation quote.


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