Blower Door Testing and Mechanical Ventilation
(Required for permits submitted July 1, 2017 and after)
The Fifth Edition of the Florida Building Code (FBC) requires blower door testing for all residential
units. This would include single family houses, town houses, duplexes, and each
condominium and
apartment unit where the building is three stories or less. The Energy Code
requires that the ACH (air changes per hour) be seven (7) or less. Mechanical ventilation is
required if
the blower door test has a result of less than three (3) ACH.
Who can perform the blower door test
Individuals with the following
certifications/licensures will be approved:
1. Individuals defined under FS 553.993 (5) or (7)
Energy Auditor or Energy Rater
2. Individuals licensed under FS 89.105(3)(f),(g)or(i);
Class A Air Conditioning Contractor
Class B Air Conditioning Contractor
Mechanical Contractor
3. Individuals who have obtained blower door training certification from a recognized agency
If you wish to be approved,
please visit Bay County Builder’s Services office to register with our
department. Class A air
conditioning, Class B air conditioning and mechanical contractors that are
currently registered with
Bay County Builder’s Services are already approved to perform blower
door tests at this time.
Raters, auditors and other certified individuals will be required to visit Bay
County Builder’s Services office to register.
What needs to be submitted and when
The attached Blower Door Test Form is to be completed by the tester. The blower door test form
is required to be signed by the license holder or the certificate holder. The blower door test form is
to be
provided to the Bay County Builder’s Services before a Certificate of Occupancy will be
840 West 11
Panama City, Florida 32401
Telephone: (850) 248-8350
Fax: (850-248-8384
ing Permit #:
Job Information
Address: Unit #:
City, State, Zip:
Air Infiltration Test Results
CFM(50) =
Volume =
ACH(50) = CFM(50) X 60 / Volume =
Pass Fail
tification of Test Results
R402.4.1.2 Testing. The building or dwelling unit shall be tested and verified as having an air leakage rate of not exceeding 7 air changes per
hour in Climate Zones 1 and 2, and 3 air changes per hour in Climate Zones 3 through 8. Testing shall be conducted with a blower door at a
pressure of 0.2 inches w.g. (50 Pascals). Testing shall be conducted by either individuals as defined in Section 553.993(5) or (7), Florida
Statutes or individuals licensed as set forth in Section 489.105(3)(f), (g), or (i) or an approved third party. Class "C" Air Conditioning
Contractor must provide a blower door training certification to the Building Official for approval before performing test. 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.
I hereby certify that the above Air Infiltration Test results demonstrate compliance with Florida Energy Code
requirements in accordance with the Florida Building Code-Energy Conservation R402.4.1.2 5
Edition (2014).
Printed Name: Date:
Company: LIC #:
Sworn to (or affirmed) and subscribed before me the ______day
By ____________________________________________________(
name of person making statement)
Personally Known
Or produced identification
Type of identification produced_____________________________
tary Seal
Mechanical Contractor
Class A Air Conditioning Contractor
Class B Air Conditioning Contractor
click to sign
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