Section 102. Alternative Materials, Methods, and Insulating Systems

102.1 General.

The provisions of this Code are not intended to prevent the installation of any material or to prohibit any method of construction not specifically prescribed by this Code, as long as that alternative has been approved. An alternative material or method may be approved if the Code Official finds in writing that, for the purpose intended:

1. the proposed alternative is satisfactory and complies with the intent of this Code, and

2. the material, method, or work offered is, for the purpose intended at least the equivalent of that prescribed in this Code in quality, strength, effectiveness, fire resistance, durability, and safety.

102.1.1 Above code programs. {As in IECC-R}