Building Simulation Conference proceedings · 2013 · 10 citations · 0 references
ArchitectureArchitectural EngineeringBuilding ScienceClimate-responsive DesignHeat TransferThermal ComfortBuilding Energy ModelingBuilding Thermal PerformanceHeat Transfer In BuildingsRoof DesignRoofing SystemsThermal Insulation DesignBuilding Physics SimulationPeak Cooling Load ReductionPhase-change MaterialsReflectanceRoof AlbedoRoof CoolingRoof Thermal InsulationRoofing Materials
A cool roof aims to reduce total seasonal cooling loads and peak summer loads. It is often rated just in terms of its solar reflectance Rsₒl (or albedo), with some impact of infrared emittance considered. However the sensitivity of cooling loads to Rsₒl varies as the R-value of sub-roof insulation changes. Knowing joint impacts led to better integrated energy savings design with R-value chosen on the basis of Rsₒl and local climate. This study extends previous work (Gentle et al., 2011) (Smith et al., 2012) (Aguilar et al., 2012) by considering the impact of phase change materials (PCM) within a roofing module on energy savings. The aim is to show how building simulation helps pinpoint the optimum combination.