HomeMy WebLinkAboutBlower Door Test ReportC31al1 J BUILDING LEAKAGE TEST
Frostbusters & Coolth Co.
PO Box 94
Basalt, CO 81621
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COOL' Note: Duct Testing Results on Page 4 of 4
Date of Test: 12/11/2024 Test File: 897 County Road 231 Blower Door Test 12-11-2024
Customer: Joaquin Bianco Technician: Fritz Diether
897 County Road 231 Project Number: Final Blower Door Test
Silt, CO 81652
Phone: 970-369-4593 Building Address: Bianco Residence
Email: btechconstruction@hotmail.com 897 County Road 231
Garfield County
Silt, CO 81652
Test Results
1. Airflow at 50 Pascals:
(50 Pa = 0.2 w.c.)
2. Leakage Area:
3. Building Leakage Curve
4. Test Settings:
5. Accuracy Level
Infiltration Estimates
708 CFM50 (+/- 0.7 %)
2.53 ACH50 mr--
38.9 in2 LBL ELA @
Flow Coefficient (C) = 54.7 (+ - %)
Exponent (n) = 0.655 ( +/- 0.011 )
Correlation Coefficient = 0.99980
Test Standard: RESNET Multi -Point Test
Test Mode: Depressurization
Standard Level of Accuracy Test
1. Estimated Average Annual Infiltration Rate
2. Estimated Design Infiltration Rate
Cost Estimates
1. Estimated Cost of Air Leakage for Heating:
2. Estimated Cost of Air Leakage for Cooling:
39.1 CFM
0.14 ACH
9.8 CFM per person
From the 2018 IECC: R402.4.1.2 Testing.
The building or dwelling unit shall be tested
and verified as having an air leakage rate
not exceeding (3.00 ACH50) three air
changes per hour in Climate Zones 3
through 8. Testing shall be conducted in
accordance with RESNET/ICC 380, ASTM
E779 or ASTM E1827 and reported at a
pressure of 0.2 inch w.g. (50 Pascals).
Where required by the code official, testing
shall be conducted by an approved third
party. A written report of the results of the
test shall be signed by the party conducting
the test and provided to the code official.
Testing shall be performed at any time after
creation of all penetrations of the building
thermal envelope.
Building Passes at 2.53 ACH50.
Winter: 74.5 CFM Summer: 57.7 CFM
0.27 ACH 0.21 ACH
Mechanical Ventilation Guideline (based on ASHRAE 62.2-2010)
Recommended Whole Bldg Rate:
Base Rate:
48.6 CFM
48.6 CFM
BUILDING LEAKAGE TEST Page 2 of 4
COOLSH
Date of Test: 12/11/2024 Test File: 897 County Road 231 Blower Door Test 12-11-2024
Building Information
Volume
16768
Surface Area
Floor Area
1863
Height
22
# of Bedrooms
3
# of Occupants
4
Year of Construction
2024
Wind Shield
L
Heating and Cooling Cost and Efficiency Information
Heating Fuel Gas
Heating Fuel Cost
Heating Efficiency %
Cooling Fuel Cost
Cooling SEER
Location Climate Information
Ventilation Weather Factor
0.80
Energy Climate Factor
19.00
Heating Degree Days
7850
Cooling Degree Days
28
Design Winter Wind Speed
1.6 mph
Design Summer Wind Speed
10.9 mph
Design Winter Temp Diff
77 deg F
Design Summer Temp Diff
11 deg F
Equipment Information
Type
Manufacturer
Model
Serial Number
Custom Calibration Date
Fan
Energy Conservatory
Model 3 (110V)
-
Micromanometer
Energy Conservatory
DG700
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o. BUILDING LEAKAGE TEST Page 3 of 4
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Date of Test: 12/11/2024 Test File: 897 County Road 231 Blower Door Test 12-11-2024
Depressurization Test:
Environmental Data
Indoor Temperature (OF)
Outdoor Temperature (OF)
32.0
Altitude (ft)
5600.0
69.0
Data Points - Data Entered Manually
Nominal Baseline Adjusted Fan
Building Pressure Building Pressure Pressure
(Pa) (Pa) (Pa)
-1.7
n/a
n/a
-60.0
-58.3
186.0
-55.0
-53.3
167.0
-50.0
-48.3
147.0
-45.0
-43.3
127.0
-40.0
-38.3
107.0
-35.0
-33.3
87.0
-30.0
-28.3
71.0
-25.0
-23.3
55.0
-20.0
-18.3
40.0
-15.0
-13.3
27.0
-1.7
n/a
n/a
Time Averaging Period: 10
None
Nominal Adjusted
Flow Flow Fan
(cfm) (cfm) % Error Configuration
808
782
-0.1
Ring B
766
741
0.4
Ring B
719
696
0.6
Ring B
669
647
0.5
Ring B
615
595
0.0
Ring B
555
537
-1.1
Ring B
502
485
-0.5
Ring B
442
428
-0.4
Ring B
377
365
-0.4
Ring B
311
301
1.0
Ring B
Deviations from Standard RESNET Multi -Point Test - Test Parameters
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o. BUILDING LEAKAGE TEST Page 4 of 4
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Date of Test: 12/11/2024 Test File: 897 County Road 231 Blower Door Test 12-11-2024
Comments
Additional Required Testing: From the 2018 IECC:
R403.3.3 Duct testing (Mandatory). Ducts shall be pressure tested to determine air leakage by one of the following methods:
1. Rough -in test: Total leakage shall be measured with a pressure differential of 0.1 inch w.g. (25 Pa) across the system,
including the manufacturer's air handler enclosure if installed at the time of the test. Registers shall be taped or
otherwise sealed during the test.
2. Postconstruction test: Total leakage shall be measured with a pressure differential of 0.1 inch w.g. (25 Pa) across the
entire system, including the manufacturer's air handler enclosure. Registers shall be taped or otherwise sealed during
the test.
Exceptions:
1. A duct air -leakage test shall not be required where the ducts and air handlers are located entirely within the building
thermal envelope.
2. A duct air -leakage test shall not be required for ducts serving heat or energy recovery ventilators that are not
integrated with ducts serving heating or cooling systems.
A written report of the results of the test shall be signed by the party conducting the test and provided to the code official.
R403.3.4 Duct leakage (Prescriptive). The total leakage of the ducts, where measured in accordance with Section R403.3.3,
shall be as follows:
1. Rough -in test: The total leakage shall be less than or equal to 4 cubic feet per minute per 100 square feet of
conditioned floor area where the air handler is installed at the time of the test. Where the air handler is not
installed at the time of the test, the total leakage shall be less than or equal to 3 cubic feet per minute per
100 square feet of conditioned floor area.
2. Postconstruction test: Total leakage shall be less than or equal to 4 cubic feet per minute per 100 square feet of
conditioned floor area.
September 23, 2025: Duct Testing at Rough -In (Air Handler Not Installed):
Test conducted by Fritz Diether, Frostbusters & Coolth Co. (970) 274-1141
Maximum Leakage Allowance: 1,863 sq ft of conditioned floor area X .03 = 55.89 CFM @ 25 PA
Test Results:
Supply Ducts: 29 CFM @ 25 PA
Return Ducts: 12 CFM @ 25 PA
Total: 41 CFM @ 25 PA. 41 CFM / 1,863 sq ft = .02. Duct System Passes