ASHRAE-90.1-2022- - Page 068

Extracted Content

a. A report complying with Section 4.2.5.1.2 providing the results of continuous air barrier compliance

with whole- building pressurization testing in accordance with Section 5.4.3.1.4 or verification of the building envelope in accordance with Section 5.9.1.2. b. Insulation documentation in accordance with Section 5.8.1.11.

5.7.3.2 Manuals. Construction documents shall require that an operating manual and a maintenance manual be provided to the building owner, or the designated representative of the building owner, within 90 days after the date of building envelope acceptance. These manuals shall be in accordance with industryaccepted standards (see Informative Appendix E) and shall include, at a minimum, operation manuals and maintenance manuals for each component of the building envelope requiring maintenance, except components not furnished as part of the project. Required routine maintenance actions shall be clearly identified.

5.8.1.1 Labeling of Building Envelope Insulation. The rated R-value of insulation shall be clearly identified by an identification mark applied by the manufacturer to each piece of building envelope insulation.

Exceptions to 5.8.1.1: When insulation does not have such an identification mark, the rated R-value of

insulation and the additional information specified below shall be identified by the manufacturer on each package, shipping container, or bundle of insulation. Insulation documentation shall be provided in accordance with Section 5.8.1.11 and the following:

1. For batts and blankets of any type: The rated R-value of insulation, length, width, thickness.
2. For boardstock: The rated R-value of insulation, length, width, and thickness of the boards in the package.
3. For all loose-fill insulation: The minimum settled thickness, initial installed thickness, maximum net coverage area, number of bags per 1000 ft [2] and minimum weight per ft [2] at R-values of 13, 19, 30, 38, and 49. The package shall also state the minimum net weight of the insulation in the package.
4. For spray-applied polyurethane foam: The R-value for the insulation at a 1 in. thickness and additional inch increments up to the maximum thickness allowed.

5.8.1.2 Manufacturer’s Installation Instructions. Insulation materials shall be installed in accordance with the manufacturer ’s recommendations and in such a manner as to achieve the rated R-value of insulation .

Exceptions to 5.8.1.2:

1. The R-value of compressed cavity insulation is determined in accordance with Table A9.4.3.
2. Where metal building roof or wall insulation is compressed between the steel structure and the metal roof or wall panels, the overall assembly U-factor is determined in accordance with Section A2.3, Section A3.2, or Section A9.4.6.

66 ANSI/ASHRAE/IES Standard 90.1-2022 (I-P)