HomeMy WebLinkAbout6820 AUTUMN RIDGE DR - DISCLOSURES - 8/29/2003Sara's Energy Scoring
813 Oxford LN
DATE FT. COLLINS, CO 80525
08/29/03 (970)377-1056
CUSTOMER: Kaufman and Broad
6820 Autumn Ridge
Fort Collins ,CO
bU1LVIVU CONDITIONS:
Interior Temp = 68 F Exterior Temp = 65 F
Volume = 16200 Cu. Ft. Above Grade Surface Area = 0 Sq. Ft.
Number of Stories = 2 Number of Occupants = 2
Wind Shield Factor = .9
HOUSE TEST : Depressurized
Fan Model = 3
Performed By SARA
Data Points:
House Pressure
Fan Pressure CFM
%Error
Fan Configuration
58
57
1332
-0.8
Ring A
47
47
1211
1.0
Ring A
40
39
1104
0.5
Ring A
32
30
970
-0.4
Ring A
23
21
813
-0.1
Ring A
16
14
665
-0.5
Ring A
Correlation Coefficient
Flow Coefficient
Exponent
r = .9994
C =
148.65
n = 0.542
Results:
Air Flow @ 50 Pascals :
1239 CFM50 +/- 0.4%
4.59 ACH50 (Air Changes Per Hour)
Effective Leakage Area (LBL) = 89.36 Square Inches +/-
Equivalent Leakage Area (CANADA) = 152.12 Square Inches +/-
Estimated Natural Infiltration (50 Pascal Flow Divided By 12.2)
= 101 CFM
= 50.7 CFM/OCCUPANT
= 0.38 AIR CHANGES PER HOUR
0
2.2%
1.3%