Section SPS 363.5303 - Materials, systems, and equipment These are department rules in addition to the requirements in IECC section R303:
(1) GENERAL. Except as specified in sub. (2), when available, information on thermal properties, performance of building envelope sections, and components and heat transfer shall be obtained from ASHRAE Handbook of Fundamentals. Note: Use of the ASHRAE Handbook of Fundamentals standard in effect at the time of publication of the 2015 IECC constitutes compliance with this section.
(2) EXCEPTIONS. (a) When the information is not available from ASHRAE Handbook of Fundamentals, the data shall be obtained from laboratory or field-test measurements. If laboratory or field test measurements are used for envelope heat transmission, the measurements shall be obtained using one of the following test methods:1. ASTM C177-13, Test method by guarded hot plate apparatus.2. ASTM C335/335M-10, Test method of horizontal pipe insulation.3. ASTM C518-15, Test method by means of the heat flow meter apparatus.4. ASTM C1363-11, Test method by means of a hot box apparatus.(b) For foam plastic insulation that incorporates a substance other than air as the insulating medium, laboratory or field tests shall be conducted on representative samples that have been aged for the equivalent of 5 years or until the R-Value has stabilized to determine thermal properties or performance. The tests shall be conducted by an independent third party.(c) Integrally insulated concrete masonry systems within the scope of the National Concrete Masonry Association (NCMA) shall be evaluated for the thermal performance of the masonry or concrete units in accordance with one of the following: 1. NCMA Evaluation Procedures for the Integrally-Insulated Concrete Masonry Walls.2. Default values as approved by the department.(d) All other concrete or masonry units not within the scope of the NCMA Evaluation Procedures shall comply with one of the following methods for determining the thermal performance of the assembly or system: 1. Default values as approved by the department.2. Laboratory or field-test measurements specified in par. (a). 3. Department material approval process as specified in ch. SPS 361 to determine the U-factor.Wis. Admin. Code Department of Safety and Professional Services § SPS 363.5303
Adopted by, CR 16-094: cr., Register April 2018 No. 748, eff. 5/1/2018