ICC Subscriptions

13-400.0 Scope, Methods of compliance.
The provisions of this chapter apply to all new commercial occupancy buildings, additions to existing commercial occupancy buildings, and multiple-family residential buildings over three stories in height. Building type classifications shall be those defined in Subchapter 13-2 of this code under "occupancy classification." This subchapter provides two methods by which commercial buildings may be brought into compliance with this code.

13-400.0.A Method A, the Whole Building Performance Method.
This is a computer-based energy code budget method which may be used for determining the compliance of all proposed designs, except designs with no mechanical system. Under this method, cost performance is calculated for the entire building based on the envelope and major energy-consuming systems specified in the design and simultaneously for a baseline building of the same configuration, but with baseline systems. Compliance is met if the design energy cost does not exceed the energy cost budget when calculated in accordance with this section; and the energy efficiency level of components specified in the building design meet or exceed the efficiency levels used to calculate the design energy cost. Compliance calculations are those utilized in the EnergyGauge Summit-Fla/Com computer program and are as described in Appendix 13-B. Basic prescriptive requirements described in the sections called Mandatory Requirements shall also be met.

The energy cost budget and the design energy cost calculations are applicable only for determining compliance with this standard. They are not predictions of actual energy consumption or costs of the proposed design after construction. Actual experience will differ from these calculations due to variations such as occupancy, building operation and maintenance, weather, energy use not covered by this standard, changes in energy rates between design of the building and occupancy, and precision of the calculation tool.

13-400.0.B Method B, the Building Prescriptive Method.
This is a prescriptive methodology that is allowed for shell buildings, renovations, change of occupancy, limited or special use buildings and building system changeouts. The building envelope complies with the standard if the proposed building meets or exceeds the Mandatory Requirements and all relevant criteria on Form 400B or the EnergyGauge Summit Fla/Com computer printout. Only the prescriptive envelope measures of Method B are permitted for shell buildings.

13-400.0.B.1 Renovated buildings.
Renovated buildings shall, when applicable (see Section 13-202), meet the efficiencies listed on Form 400B for components being changed or shall comply with the envelope or systems criteria in Method B of EnergyGauge Summit-Fla/Com for the components being changed. Existing buildings not meeting the definition of a renovation in which new heating, cooling, water heating, electrical or lighting systems are installed shall meet the Mandatory minimum efficiencies listed in this code for the system(s) being changed.

13-400.1 Types of requirements.
Mandatory requirements shall be met for all buildings. The section number followed by the combined number and letters ".AB" indicates these Mandatory Requirements (i.e., requirements that shall be met by buildings complying by either Method A or B) in Sections 13-401 through 13-415. Requirements specific to Method A or B (i.e. ".B" is specific to Method B) shall be met when complying with the code by that Method. Where a requirement specific to a method is more stringent than the Mandatory Requirement, the more stringent requirement shall be met.

13-400.2 Performance calculation procedures.
The calculation procedures contained in the personal computer-based program entitled EnergyGauge Summit Fla/Com and those described in Appendix 13-B, shall be used to demonstrate code compliance of the design for commercial buildings complying by Method A of this chapter. The building components' efficiency levels specified in the Method A performance compliance calculation are the minimum efficiencies allowed to be installed in the building. Shell buildings complying by Method B are limited to the envelope features only.

13-400.2.A.1 Additions
. Additions to existing buildings shall follow the same Method A calculation procedure as new construction with the following qualifications:

1. Calculations shall be conducted using only the components of the addition itself, including those preexisting components which separate the addition from other spaces.

2. Efficiencies for heating and cooling systems shall be assumed to be the minimum efficiency allowed by the code for that type and size of equipment unless new equipment is installed to replace existing equipment or to service the addition specifically or higher equipment efficiencies can be documented.

13-400.2.A.2 Shell buildings.
Shell buildings shall comply with this code by Method A or Method B. If Method B is used and once all energy-related design parameters are known, a Method A calculation must be submitted.

13-400.3 Certification of compliance.

13-400.3.AB.1 Code compliance preparation.
The EnergyGauge Summit–Fla/Com performance calculation procedures demonstrating code compliance for Method A and Form 400B shall be prepared, signed and sealed by an architect or engineer registered in the state of Florida, with the exception of buildings excluded by Section 481.229, Florida Statutes, or Section 471.003, Florida Statutes. Calculations for buildings falling within the exception of Section 471.003, Florida Statutes, may be performed by air conditioning or mechanical contractors licensed in accordance with Chapter 489, Florida Statutes, or by state of Florida certified commercial building energy raters.

The person preparing the compliance calculation shall certify that the calculation, or amendments thereto, is true and accurate and demonstrates that the building is in compliance with the requirements of Chapter 13 of this code.

13-400.3.AB.2 Code compliance certification.
The building's owner, the owner's architect, or other authorized agent legally designated by the owner shall certify to the building official that the building is in compliance with the requirements of Chapter 13 of this code prior to receiving the permit to begin construction or renovation.

If, during the building's construction or renovation, alterations are made in the building's design or in materials or equipment installed in the building which would diminish it's energy performance, an amended copy of the compliance certification shall be submitted to the building official on or before the date of final inspection by the building owner or his or her legally authorized agent.

The certified EnergyGauge Summit Fla/Com calculation printout or Form 400B shall be a part of the plans and specifications submitted for permitting.

The party responsible under Subsections 471.003 and 481.228 and Chapter 489, Florida Statutes, for the design and specification of each building system shall certify that the plans and specifications for that system comply with the requirements of Chapter 13 of this code (see also Section 13-103.2).

13-400.3.AB.3 Forms.
Forms referenced in Table 13-400.3.AB.3 shall be used to demonstrate code compliance with this chapter. Climate zones used in Subchapter 13-4 shall be as defined in Section 13-202 under ASHRAE Climate Zone.


Method A Form 400A-08 (the EnergyGauge
Whole Building
Summit Fla/Com Computer
Method B
Building Prescriptive
Form 400B-08 (or EnergyGauge
Summit Fla/Com Computer

13-400.3.A Method A Forms.
An accurately completed Form 400A-08 (generated by the EnergyGauge Summit Fla/Com computer program) demonstrating that code compliance has been achieved shall be submitted to the building official for Method A compliance. Calculations shall be performed for the building's location.

13-400.3.B Method B Forms.
An accurately completed Form 400B-08 or EnergyGauge Summit-Fla/Com computer printout demonstrating that code compliance has been achieved shall be submitted to the building official for Method B compliance.

13-400.4.AB Reporting.
A copy of the front page of the 400 series form submitted to demonstrate code compliance shall be sent by the building official to the Florida Building Commission on a quarterly basis for reporting purposes.