Centennial Water & Sanitation

Key Points:

• Two 500,000-gallon water tank restorations

• Challenges: Specific insulation requirements, winter work, tank movement

• Solution: Spray foam insulation, polyurea coating, flexible expansion system

• Success factors: Custom engineering, innovative approach, winter adaptations

The Centennial Water and Sanitation District project involved the restoration of two 500,000-gallon water tanks, presenting unique challenges that required innovative solutions. The project specifications called for meeting a specific insulation requirement of R-21 value, which demanded precise material selection and application techniques.

One of the primary challenges we faced was the timing of the project, with work on one of the tanks scheduled during the winter months. This required us to develop a creative approach to maintain proper working conditions in cold weather. Our solution was to construct a heated tent structure around the tank, creating a controlled environment that allowed us to continue work regardless of external temperatures.

The technical aspects of the project were equally demanding. We applied 3.5 inches of spray foam insulation on the tank lids to meet the required R-value. This was followed by a coating of polyurea with granules broadcast into it, providing a durable and weather-resistant finish. Perhaps the most innovative aspect of our approach was the system we developed to accommodate the natural expansion and contraction of the tanks. This involved creating a flexible interface between the rigid structures and the coating system, ensuring long-term performance and integrity.

The success of this project highlighted our ability to engineer custom solutions for unique challenges. By combining technical expertise with practical innovation, we were able to deliver a result that not only met but exceeded the client's expectations, even under challenging working conditions.