HomeMy WebLinkAbout6826 Autumn Ridge Dr - Disclosures - 08/29/2003Sara's Energy Scoring
813 Oxford LN
DATE FT. COLLINS, CO 80525
08/29/03 (970)377-1056
CUSTOMER: Kaufman and Broad
6826 Autumn Ridge
Fort Collins ,CO
BUILDING CONDITIONS:
Interior Temp = 68 F Exterior Temp = 65 F
Volume = 15111 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
57
50
1248
—0.4
Ring A
52
43
1159
—0.3
Ring A
45
35
1046
1.3
Ring A
39
27
920
0.2
Ring A
30
17
732
—1.3
Ring A
25
13
641
0.3
Ring A
Correlation
Coefficient
Flow Coefficient
Exponent
r =
.9993
C =
46.11
n = 0.817
Results:
Air Flow @ 50 Pascals :
1126 CFM50 +/— 0.4%
4.47 ACH50 (Air Changes Per Hour)
Effective Leakage Area (LBL) = 40.56 Square Inches +/— 3.7%
Equivalent Leakage Area (CANADA) = 88.80 Square Inches +/— 2.3%
Estimated Natural Infiltration (50 Pascal Flow Divided By 12.2)
92 CFM
= 46.1 CFM/OCCUPANT
= 0.37 AIR CHANGES PER HOUR