HomeMy WebLinkAbout726 Roma Valley Dr - Correspondence - 07/25/2001Jul 25 01 09:58a Anderson Associates S70 484-6195 p.2
DATE
07/25/01
ANDERSON ASSOCIATES
422 East Oak Street
Fort Collins, Colorado 80524
(970)484-0306
CUSTOMER: Sanford Homes
726 Roma valley '
Fort Collins, CO 80525
720/480-6402
BUILDING CONDITIONS:
Interior Temp = 72 F Exterior Temp = 82 F
volume = 44626 Cu. Ft. Above Grade Surface Area = 4187 Sq. Ft.
Number of Stories = 2 Number of Occupants 5
Wind Shield Factor - 1
HOUSE TEST : Depressurized
Fan Model = 3
Performed By Dick Anderson AIA
Data Points:
House Pressure
Fan Pressure
CFM *Error
Fan Configuration
58
39
3028 14.8
Open
44
170
2315 -16.9
Ring A
32
105
1824 -56.9
Ring A
16
385
3470 7.0
Ring A
Correlation Coefficient
Flow Coefficient
Exponent
r = .4542
C = 5221.15
n - -.174
Results:
Air Flow 0 50 Pascals
= 2648 CFM50 +/- 17.9'k
= 3.56 ACH50 (Air Changes Per Hour)
Effective Leakage Area (LBL) w
(CANADA) =
1163.74 Square
1028.33 Square
Inches
Inches
+/- 50.9%
+/- 30.3%
Equivalent Leakage Area
Minneapolis Leakage Ratio =
0.63 CFM50 Per
Square
Foot
Estimated Natural Infiltration (50
184 CFM
m 36.9 CFM/OCCUPANT
= 0.25 AIR CHANGES PER HOUR
Asti %
0T--
Pascal Flow Divided By 14.4)
L r;
�'L'Ze; 0 1