HomeMy WebLinkAbout1514 Tang Ct - Disclosures - 07/11/2003Sara's Energy Scoring
813 Oxford LN
DATE FT. COLLINS, CO 80525
07/11/03 (970)377-1056
CUSTOMER: US Homes
1514 Tang
Fort Collins ,CO
BUILDING CONDITIONS:
Interior Temp = 68 F Exterior Temp = 70 F
Volume = 31500 Cu. Ft. Above Grade Surface Area = 0 Sq. Ft.
Number of Stories = 2 Number of Occupants = 2
Wind Shield Factor = 1
HOUSE TEST :
Depressurized
Fan Model = 3
Performed By SARA
Data Points:
House Pressure Fan Pressure
CFM
%Error
Fan Configuration
57
144
2117
1.1
Ring
A
52
127
1989
—0.9
Ring
A
45
113
1878
—0.1
Ring
A
38
96
1732
—0.4
Ring
A
30
77
1553
—0.5
Ring
A
21
57
1338
0.9
Ring
A
Correlation Coefficient Flow Coefficient Exponent
r = .9986 C = 328.70 n = 0.458
Results:
Air Flow @ 50 Pascals :
1972 CFM50 +/— 0.4%
3.76 ACH50 (Air Changes Per Hour)
Effective Leakage Area (LBL) = 175.84 Square Inches +/—
Equivalent Leakage Area (CANADA) = 277.16 Square Inches +/—
Estimated Natural Infiltration (50 Pascal Flow Divided By 13.6)
= 145 CFM
= 72.7 CFM/OCCUPANT
= 0.28 AIR CHANGES PER HOUR
2.9%
1.8%