Commercial building and pedestrian areas constructed with Siplast materials

Wisconsin

Monona Terrace

Making this Frank Lloyd Wright design - proposed for Monona in his native Wisconsin - an iconic reality

  • Category

    Waterproofing & Deck Coating Solutions

  • Completed

    1997

  • Type

    Hospitality & Entertainment

  • Size

    1,070 squares

Challenge

Nearly six decades after it was first proposed by famed architect and native Wisconsinite Frank Lloyd Wright, the Monona Terrace Community and Convention Center finally took shape in 1997— connecting Lake Monona’s shoreline to the State Capitol in downtown Madison. The expansive, curving deck design came with serious challenges: complex waterproofing requirements, an exposed plaza layout, and the need for materials that could be installed reliably in extremely cold Wisconsin temperatures.

Solution

Siplast provided a high-performance system engineered fordurability, design compatibility, and cold-weather reliability:
  • Waterproofing applied in harsh conditions
    Teranap, Siplast's SBS-modified bitumen waterproofing system, was torch-applied with no issue—even in temperatures as low as 10°F. Its 2-meter-wide rolls also reduced the number of laps, simplifying installation across the wide plaza deck.
  • Durability for a landmark public space
    Paired with Paradiene® 20 TG, the system delivered the strength and flexibility needed for the project's exposed conditions and curved design geometry.
  • A lasting solution for a historic design
    A lasting solution for a historic design The system provided high-performance waterproofing protection while preserving the architectural intent of Wright's vision—making this long-awaited civic space a functional and iconic reality.
With Siplast's waterproofing system, the Monona Terrace became not only an architectural milestone, but a resilient, high-performing public space designed to withstand Wisconsin's climate and heavy foot traffic.

Siplast Systems

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