Research conducted by Connor and researcher colleagues at the University of Alaska sought to expand the understanding of how both rigid foam insulations (XPS and EPS) perform over time when confronted by harsh conditions in below-grade applications. The most recent study, conducted in 2019, built on previous findings from research done in Alaska and Canada, examines the use of insulation in roadway embankments and airport runways.
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Today, the design-build sector is increasingly specifying tapered expanded polystyrene (EPS) insulation solutions to comply with codes—many existing buildings that are being retrofitted require the slope to be altered to meet regulations—as well as save time and money on the roof.
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Throughout history, mothers have admonished their children to “wear a hat or you will catch a cold.” While we now know this is not true, mom’s advice provides building professionals with an important reminder why roof insulation is crucial: buildings lose about 25 percent of their heat through the roof when it is cold outside. On hot days, the roofing membrane can hold heat for hours, which puts a burden on air-conditioning equipment.
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In 2015, The United States experienced 113,500 nonresidential structure fires (the latest year for which data on this are available), resulting in 80 civilian deaths and $3.1 billion in property damage.
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Insulation is a critical component to specify when designing a functional, cost-effective, and energy-efficient building. One method to insulate a building is by installing 50 to 152 mm (2 to 6 in.) of rigid foam insulation on the exterior side of the wall framing.
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