<p>This document provides a design process for daylight openings in order to ensure the principle of sustainability in the indoor visual environment. The design process for daylight openings includes the consideration of:</p>
<p>— sunshine duration in the building interiors;</p>
<p>— daylight opening ratio to the wall area of a habitable room;</p>
<p>— daylight opening ratio to the floor area of a habitable room;</p>
<p>— appropriate levels of indoor daylight based on human visual needs and the extent of sunlight;</p>
<p>— daylight control systems in the building;</p>
<p>— thermal comfort, thermal gains and energy efficiency.</p>
<p>This document is applicable to building environment design for new buildings and the retrofit of existing buildings.</p>
Registration number (WIID)
64931
Scope
<p>This document provides a design process for daylight openings in order to ensure the principle of sustainability in the indoor visual environment. The design process for daylight openings includes the consideration of:</p>
<p>— sunshine duration in the building interiors;</p>
<p>— daylight opening ratio to the wall area of a habitable room;</p>
<p>— daylight opening ratio to the floor area of a habitable room;</p>
<p>— appropriate levels of indoor daylight based on human visual needs and the extent of sunlight;</p>
<p>— daylight control systems in the building;</p>
<p>— thermal comfort, thermal gains and energy efficiency.</p>
<p>This document is applicable to building environment design for new buildings and the retrofit of existing buildings.</p>
