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Old 10-28-2014, 01:39 PM
mikeinatlanta mikeinatlanta is offline
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Join Date: Feb 2003
Location: Jonesboro GA,
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Here you go. So what would you like to debate next?

Test data,

Air temperature testing was conducted as follows:

Testing was done with a test fixture that mounted test coupons at the desired height and insulated aluminum test coupons from outside heat sources. Testing was accomplished on both concrete and asphalt surfaces, and during cloudy, partly cloudy, and sunny conditions. Each test was accompanied by a control coupon mounted in the shade and with its radiant barrier towards the sun.

Test coupons were set as follows:
1. Reference coupon. Mounted coupon under a shade tree with reflective foil towards the sun.
2. Bare coupon directly on tarmac
3. 1.25” above tarmac
4. 7.4” above tarmac
5. 14.75” above tarmac
6. 22” above tarmac
7. 29.75” above tarmac

Results for all tests were consistent regardless of surface being tested or level of direct sunlight, with the only difference being the temp gradient spread from coupon 2 vs. the others. Wind speed made no significant difference with the exception of normalizing temperatures of coupons 2 and 3.

The following test was taken in early afternoon on a calm day. The readings are an average of 20 samples taken over a period of twenty minutes after a 15 minute soak. High and low readings were eliminated for each.

1. 73
2. 104
3. 74
4. 73
5. 73
6. 73
7. 72
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