HomeMy WebLinkAbout709 Crown Ridge Ln - Disclosures - 05/21/2003Sara's Energy Scoring
813 Oxford LN
DATE FT. COLLINS, CO 80525
05/21/03 (970)377-1056
CUSTOMER: Kaufman and Broad
709 Crown Ridge Lane #2
Fort Collins ,CO
BUILDING CONDITIONS:
Interior Temp = 68 F Exterior Temp = 70 F
Volume = 14300 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
45
1191
-0.0
Ring A
52
40
1123
-0.2
Ring A
'47
36
1066
-0.2
Ring A
40
31
990
0.7
Ring A
34
26
908
0.4
Ring A
27
20
797
-0.7
Ring A
Correlation Coefficient
Flow Coefficient
Exponent
r = .9996
C =
146.63
n = 0.516
Results:
Air Flow @ 50 Pascals :
1103 CFM50 +/- 0.2%
4.63 ACH50 (Air Changes Per Hour)
Effective Leakage Area (LBL) = 84.99 Square Inches +/- 1.8%
Equivalent Leakage Area (CANADA) = 141.24 Square Inches +/- 1.1%
Estimated Natural Infiltration (50 Pascal Flow Divided By 12.2)
90 CFM
= 45.2 CFM/OCCUPANT
= 0.38 AIR CHANGES PER HOUR