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
dwelling
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
• Currently Certified through RESNET or BUILDING PERFORMANCE INSTITUTE
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
issued.
