HomeMy WebLinkAboutDuct Leakage ReportTest Date: 2024-11-06
Client Tester
Building Description Miguel Salvidrez Company Dexter Diagnostics
Building Address 129 Sage Meadow Address 18 Crescent Pl
Glenwood Springs, CO 81601 Glenwood Springs, CO 81601
Contact Miguel Salvidrez Technician Amanda Poindexter
Phone 970-309-5416 Phone 720-219-3683
Test Type Total Duct Leakage Gauge S/N 2070150
Fan series 200 Fan S/N LF2001000
Conditioned Floor Area 1158.0 sq ft
Air Handler Flow 1600 CFM
Percentage of Duct Leakage to Outdoors
Supply Return
Average Duct Operating Pressure 25.0 Pa 25.0 Pa
Leakage Split 50% 50%
Leakage Penalty 100% 50%
Pressurization
Duct Pressure 25.7 Pa
Fan Pressure 209.0 Pa
Range Configuration Low
Duct Leakage 25.5 CFM
Leakage Area 4.7 sq in
Leakage constant, C 3.63
Leakage Exponent 0.60 (assumed)
Total Duct Leakage
Duct Leakage as % of Air Handler Flow 1.6%
Duct Leakage to Outdoors (estimated)
Leakage/Conditioned Floor Area
22 CFM/1,000 sq ft at 25 Pa
2.2 CFM/100 sq ft at 25 Pa
Duct Leakage
Test Report
0.022 CFM/sq ft at 25 Pa
Building and Duct Details
25.5 CFM at 25 Pa
Leakage Results
Leakage Data
Per the 2018 IECC: R403.3.6 Duct leakage
(prescriptive). The total leakage of the ducts,
where measured in accordance with Section
R403.3.5, shall be as follows:
1.) Rough-in test: Total leakage shall be less
than or equal to 3 CFM per 100 SF of
conditioned floor area where air handler is not
installed.
Maximum allowable:
3 CFM x 1,158/100 sq ft = 32.74 CFM at 25 Pa
- Note that SF is for ductwork servicing the
upstairs only as this is the only ductwork that is
outside of the thermal envelope.
PASSES at 25.5 CFM at 25 Pa.