Washington
Space Needle
Preserving and renovating the observation deck of the 57-year-old world icon - with minimal interruption to visitors
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Category
Waterproofing Solutions -
Completed
2018 -
Type
Hospitality & Entertainment -
Size
29 squares
Challenge
Help update the beloved world landmark and elevate the visitor experience. Expand and resurface the popular observation deck while keeping it open for use and hazard-free. Account – in strategy and materials – for a tall structure that contracts, twists, and expands in reaction to temperature and wind.
Solution
- The fast-curing PMMA liquid-applied Terapro Waterproofing and Surfacing System made scheduling around Seattle’s rainy climate possible, and allowed a swift return to full visitor service
- Pro Natural Quartz aggregate was chosen to provide a hard-wearing surfacing layer for the high-traffic observation deck
- Waterproofing layers composed of specially formulated catalyzed PMMA resin and polyester fleece fabric reinforcement were used to build up a high mil thickness application resistant to UV, foot traffic, and common environmental contaminants*
- Phased application plus fast-cure allowed visitors to visit daily without interruption
Siplast Systems
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Terapro Waterproofing & Surfacing Systems
In the 1930s when polymethyl methacrylate resins, commonly known as PMMA, were first synthesized. Practical applications for the new resin, which included everything from aircraft windshields to dentures, soon followed. The material proved to be exceptionally durable, and the use of PMMA grew rapidly. But in spite of its outstanding performance, the material was too rigid for use in waterproofing applications - until the 1970s. Learn more about our brand of Terapro Waterproofing & Surfacing Systems, our history, and our dedication to innovation.