Concerning daylighting design, a basic formula is that the minimum daylight factor (DF) in a given room is equal to 10% of the window area (based on a percentage of floor area). This means that one would multiply the requisite DF by a factor of ten to get the percentage of floor area required for the window area. We have a classroom that measures out at 700 square feet of floor area and we have a design illuminance required of 30 footcandles. We will assume a typical outdoor illuminance of 1000 footcandles during heavy overcast days and winter storm days. Given this above-noted information and basic calculations, the total square footage of window area required to yield the requisite daylight amount is

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Concerning daylighting design, a basic formula is that the minimum daylight factor (DF) in a
given room is equal to 10% of the window area (based on a percentage of floor area). This
means that one would multiply the requisite DF by a factor of ten to get the percentage of
floor area required for the window area. We have a classroom that measures out at 700
square feet of floor area and we have a design illuminance required of 30 footcandles. We will
assume a typical outdoor illuminance of 1000 footcandles during heavy overcast days and
winter storm days.
Given this above-noted information and basic calculations, the total square footage of
window area required to yield the requisite daylight amount is
Transcribed Image Text:Concerning daylighting design, a basic formula is that the minimum daylight factor (DF) in a given room is equal to 10% of the window area (based on a percentage of floor area). This means that one would multiply the requisite DF by a factor of ten to get the percentage of floor area required for the window area. We have a classroom that measures out at 700 square feet of floor area and we have a design illuminance required of 30 footcandles. We will assume a typical outdoor illuminance of 1000 footcandles during heavy overcast days and winter storm days. Given this above-noted information and basic calculations, the total square footage of window area required to yield the requisite daylight amount is
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