the effects of roofing type on indoor temperature by lucy goodwin-johansson, jozef lisowski, and...
TRANSCRIPT
The Effects of Roofing Type on
Indoor Temperature
By Lucy Goodwin-Johansson, Jozef Lisowski, and James Hollingsworth
Procedures/Materials
Data Analysis: Method OneAvg. Green/Ambient Avg. White/Ambient Avg. Black Ambient
Day .775 1.21 1.42
Evening .918 1.06 1.06
Inside Temp. Black Roof
On Top Temp. Black Roof
Inside Temp. White Roof
On Top Temp. White RoofAmbient Temp.
Figure 1: Graph of time vs. temperature for 05/10/10 3:30-5:30 p.m.
Inside Temp. Black Roof
Ambient Temp.
Under Temp. Green Roof
Inside Temp. Green Roof
Figure 2: Graph for 05/11/10 from 1:00-2:45 p.m. "Under Temp Green Roof" represents the temperature underneath the Xero Flor America roof.
Table 1: Ratio of the ambient temperature to the inside temperature.
Data Analysis: Method Two• ΔT Calculations. Numerical Analysis
ΔT for Black roof Average ΔT for Black Roof ΔT for green roof Average ΔT for green roof
8.46723039 8.983151618 0.53124947 0.605152869
8.07009822 0.57844728
9.46269425 0.60299146
10.51017021 0.53024201
10.67086823 0.69903497
9.69137956 0.62678357
8.99390499 0.60261281
8.60897073 0.65095957
8.07772005 0.52958599
7.27847955 0.69962156
Data Analysis: Method Three
Figure 1: White & Black boxes, 5/10, 10:45 a.m.
Conclusion
• Green roof is preferred for NCSSM Campus• Green roofs reduce the indoor temperature
relative to the ambient temperature during warm weather.
• Green roofs do the best job of retaining temperature within a closed roof system.
• Green roofs have a smaller temperature range than white and black roof systems.
Special Thanks
Dr. SchmalbeckThe Maintenance Department
SecurityDr. Rough