A systematic method for selecting roller shade properties for glare protection

摘要: Abstract Currently, there is no methodical procedure for selecting solar-optical properties of roller shades, which affect the energy and indoor environmental performance perimeter building zones. This paper presents a new systematic methodology identifying range shading (openness factor visible transmittance) that can significantly reduce risk glare. A model calculates angular beam–beam beam–diffuse optical using minimum inputs used within hybrid ray-tracing radiosity daylighting model, validated with full-scale experiments. The temporal variation beam total vertical illuminance to define annual visual discomfort frequency establish process acceptable each set external parameters (location, orientation, glazing transmittance, buffer zone). combined impact transmittance openness on daylight metrics non-linear complex. Recommendations factors values are made different scenarios. Selecting upper limits suggested ranges provide more into space probability high contrast. These guidelines may be selection products, followed by considerations about savings provision outside view.