Building envelope assemblies and materials.

CFR · 2024-01-01 · US · Title 10

The building envelope and its associated assemblies and materials shall meet the provisions of this section. 402.1 402.1.1 402.1.1.1 The shading coefficient (SC) for fenestration shall be obtained from RS-4 (incorporated by reference, see § 434.701) or from manufacturer's test data. The shading coefficient of the fenestration, including both internal and external shading devices, is SC 402.1.2 The thermal transmittance of each component of the building envelope shall be determined with due consideration of all major series and parallel heat flow paths through the elements of the component and film coefficients and shall account for any compression 402.1.2.1 Envelope Assemblies Containing Metal Framing. The thermal transmittance of the envelope assembly containing metal framing shall be determined from one of three methods: (a) Laboratory or field test measurements based on RS-5, RS-6, RS-7, or RS-8 (incorporated by reference, see § 434.701). (b) The zone method described in Chapter 22 of RS-4 (incorporated by reference, see § 434.701) and the formulas on page 22.10. (c) For metal roof trusses or metal studs covered by Tables 402.1.2.1a and b, the total resistance of the series path shall be calculated in accordance with the following Equations: 402.1.2.2 402.1.2.3 402.1.2.4 (a) The following equation 402.1.2.4a shall be used. (b) Values of U (1) Results from laboratory test of center-of-glass, edge-of-glass, and frame assemblies tested as a unit at winter conditions. One of t

official document · source cfr-2024 · id 10:§ 434.402