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Anthony Giannini & Paris Bunkers

Located on the University of Idaho Campus

Overlooks 3rd floor of Art and Architecture North

Shed roof of perforated steel decking

Single length north-facing clerestory windows

Advanced Painting Studio

Currently students prefer electric lighting while painting

Chose space due to its potential for a complete day lighting system

T8 32W 4100K

4’ long

14 rows with 4 columns of two bulbs each

112 lamps total

Illuminance Meter Readings (fc)

Average DF=11.17%

Average Illuminance with lights off = 108

Average Illuminance with lights on = 201; 86% increase

8.7%

11.8%

13%

88

113.5

123

168

247

189

DAYLIGHT FACTORLIGHTS OFFLIGHTS ON

AVG./ROW

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Moscow

Clim

ate

Studio use from 11:30- 1:30 will experience highest available illumination

Primarily cloudy skies which is best for skylights

SkylightsEven distribution of lightDecrease glareEliminate need for electric lights during daytimeFixtures diffuse light

ROOM AREA: 1109 SQFTAREA OF SKYLIGHTS: 140 SQFT% OF FLOOR AREA THAT IS SKYLIGHTS: 12.6%

Existing C

onditions

OVERCAST SKY, MOSCOW ID, THURSDAY FEB.12, 1:30 PM Proposed A

ddition of Skylights

OVERCAST SKY, MOSCOW ID, THURSDAY FEB. 12 1:30 PM

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Glare

Glare A

nalysis

EXISTING GLARE

REDESIGN GLARE

• Reduce glare by adding apertures on two surfaces

Existing Daylight Factors: 4.54 % 53% decrease of light on back wall

Redesign Daylight Factors: 8.46% 32.5% decrease of light on back wall

Com

puter Model G

enerated Daylight Factors

Existing design: Light dissipating towards southern wall

Com

puter Model G

enerated Illuminance R

eadings

Redesign: Even distribution of natural daylight

Section D

aylight Coverage

Existing Design•Light falls off as approach southern wall•Students still prefer to paint with electric lights on

Redesign•Distributes light deeply• Skylight fixtures diffuse light throughout•Creates ambient light•Primarily cloudy skies; works well with skylights

115 fc

76 fc43 fc

29 fc

134 fc118 fc

92 fc75 fc

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Hours of OperationAssuming full school day of 7:30- 3:30 = 8 hrs/day

Monday-Friday = 40 hrs/day 160 hrs/month

Current Spending.032 kw/hr for 1 lamp . 032kw/hr X 160 = 5.12 kw/hr/monthAverage cost in Idaho for 2008 was 6.24 cents per kwH5.12 X .0624 = .32 .32 X 112 lamps = $35.78 per month

Approximately $430 per year

Redesign PossibilitiesStudio only used during intermediate/advanced painting from 11:30- 1:30 MWWith the new lighting scheme adequate day lighting will be sufficient during duration of work day resulting in no electrical lighting needed

• Initially the loft is an adequate daylight room. There are areas that can be improved specific to painting needs

• Needed to double the amount of daylight to rid of electrical light usage• Potentially saving $430 per year

• Skylight scheme achieved this as well as:• Reducing glare• Increasing illuminance distribution• Taking advantage of abundant

cloudy weather