Ordinance Text
9-9-28: IECC ENERGY CODE AMENDMENT, ADD TABLE R402.6, LOG HOME PRESCRIPTIVE THERMAL ENVELOPE REQUIREMENTS BY COMPONENT:
9-9-28: IECC ENERGY CODE AMENDMENT, ADD TABLE R402.6, LOG HOME PRESCRIPTIVE THERMAL ENVELOPE REQUIREMENTS BY COMPONENT:
TABLE R402.6
LOG HOME PRESCRIPTIVE THERMAL ENVELOPE REQUIREMENTS BY COMPONENT
Climate Zone | Fenestration U-Factora | Skylight U-Factor | Glazed Fenestration SHGC | Ceiling R-Value | Min. Average LOG Size In Inches | Floor R-Value | Basement Wall R-Valued | Slab R-Value & Depthb | Crawl Space Wall R-Valued |
5, 6-High efficiency equipment pathc | 0.32 | 0.60 | NR | 49 | 5 | 30 | 15/19 | 10, 4 ft. | 10/13 |
5 | 0.32 | 0.60 | NR | 49 | 8 | 30 | 10/13 | 10, 2 ft. | 10/13 |
For SI: 1 foot = 304.8 mm
a. The fenestration U-factor column excludes skylights. The SHGC column applies to all glazed fenestration.
b. R-5 shall be added to the required slab edge R-values for heated slabs.
c. 90% AFUE natural gas or propane, 84% AFUE oil, or 15 SEER heat pump heating equipment (zonal electric resistance heating equipment such as electric base board electric resistance heating equipment as the sole source for heating is considered compliant with the high efficiency equipment path).
d. "15/19" means R-15 continuous insulated sheathing on the interior or exterior of the home or R-19 cavity insulation at the interior of the basement wall. "15/19" shall be permitted to be met with R-13 cavity insulation on the interior of the basement wall plus R-5 continuous insulated sheathing on the interior or exterior of the home. "10/13" means R-10 continuous insulated sheathing on the interior or exterior of the home or R-13 cavity insulation at the interior of the basement wall.
(Ord. 43-17, 12-19-2017, eff. 1-1-2018; amd. Ord. 42-20, 12-1-2020, eff. 1-1-2021)
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