Comparing Polystyrenes: Looking at the differences between EPS and XPS

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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. Two of the most frequently installed types of rigid foam insulation are expanded and extruded polystyrene (EPS and XPS).

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Innovations reduce air leakage for energy efficient rolling steel door

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Until recently, air leakage was not a consideration in the rolling steel door industry. It was thought to be an impossible task—how do you stop air from coming through a door that is slatted? However, as codes became more stringent regarding reductions in air leakage, it started limiting the ability for architects to specify the best closure product for their application.

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Understanding heat, air, and moisture control

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Many designers and specifiers understand controlling air, vapor, and thermal transfer helps mitigate moisture problems within the building envelope. Moisture accumulation is a performance adversary that can lead to structural deterioration, finish damage, organic growth, and reduced building longevity.

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Integrated wall retrofits: Solutions for existing masonry construction for commercial buildings

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Sixty percent of U.S. commercial buildings were constructed before 1980. Retrofitting them for energy efficiency is essential to achieve the Department of Energy (DOE) Building Technologies Office’s (BTO) goal of halving building energy use by 2030. Most existing buildings have masonry construction with uninsulated wall assemblies, which offer good potential for wall improvement strategies.

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