Section Design

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Introduction - staggered, depth, cavity, height

A well-designed building section is critical in achieving daylit core areas. Top lighting is a common way of getting daylight into core areas. Some of the top lighting methods include skylights, monitors, saw-tooth and clerestories. The following diagram shows these methods-


Source: Daylighting Guide for Canadian Commercial Buildings, Public Works and Government Services [1]


Some of the advantages of top lighting over side lighting are that it’s a natural direction of lighting; can achieve uniform light levels across large floor-plate; easier to control glare.

Design of skylights and windows need to be coordinated. The following figures show placement of skylights with and without windows:

Source: Daylighting Guide for Canadian Commercial Buildings, Public Works and Government Services [1]


The following diagrams show various design options:

Sloped skylight for seasonal light
Light diffusion after entering skylight
Difuse incoming light for glare reduction
Splayed opening on a skylight
Seasonal use of shades with skylights
|
Interior reflectors diffuse light

Source: Daylighting Guide for Canadian Commercial Buildings, Public Works and Government Services [1]


Clerestory spacing as a function of building height
Clerestories avoid many of the problems of horizontal skylights
Suncatcher baffles with East/West Clerestories
Suncatcher Baffles with North/South Clerestories
Reflective roof with clerestory
Diffuse light with interior walls
Minimize clerestories glare with baffles and overhangs
South-facing clerestories with light scoops

Source: Daylighting Guide for Canadian Commercial Buildings, Public Works and Government Services[1]


Skylights can be optimized by using tools such as Skycalc http://www.h-m-g.com/downloads/SkyCalc/skycalcreg.htm


Section Key Resources
  • Daylighting Guide for Canadian Commercial Buildings, Public Works and Government Services, Canada, 2002
Links

Lead Author(s): Vinay Ghatti

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  1. ^ a b c d this reproduction is a copy of an official work that is published by the Government of Canada and has not been produced in affiliation with, or with the endorsement of the Government of Canada.
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