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Nancy Tia Brown MAYOR Donny Anderson Karen Ballinger Jerry Fritz Landon Greer Steve Miller Stan Wolz COUNCIL MEMBERS C. Edward Webster II MUNICIPAL JUDGE Barry A. Cook CITY ADMINISTRATOR 1338 Rumsey Avenue P.O. Box 2200 Cody, Wyoming 82414 (307) 527-7511 FAX (307) 527-6532 January 19, 2017 Chapter 11 (Energy Efficiency) in the 2015 IRC. Delete the entire Energy Chapter which is chapter 11. Secondly, I have prepared the following to put in its place which applies to the City of Cody and Climate Zone 6. Insulation and Fenestration Requirements for the City of Cody 1) Ceilings with attic spaces Attic insulation shall be a minimum of R-49. Baffles shall be installed in truss or joists bays at intervals consistent with the attic ventilation requirements of Section R806.1 through 806.4. 2) Ceilings without attic spaces and unvented enclosed rafter assembles Insulation and construction methods shall comply with Section 806.5. In addition, for roof/ceiling assemblies which do not allow sufficient space for the required insulation, the minimum required insulation for such roof/ceiling assemblies shall be R- 30. This reduction in R value shall be limited to 500 square feet of ceiling area. 3) Crawl Space Walls As an alternative to insulating floors over crawl spaces, the crawl space rim shall be required to be insulated with a minimum of R-19 insulation when the crawl space is not vented to the outside. Exposed earth in unvented crawl space foundations shall be covered by a continuous Class I vapor retarder. All joints shall overlap at least 6” and be sealed. The edges shall be extended up the foundation wall at least 6” and be attached to the stem wall. 4) Basement Walls Walls shall be insulated so that the combination of concrete walls and insulation equals R-19 or greater. This includes rim joists cavities and behind tubs and showers. ---PAGE BREAK--- 5) Floors Subfloors shall be insulated with a minimum R-19 insulation if the foundation walls are vented per Section 408.2. If unvented conditioned crawl space methods are used per Section 408.3 or automatic temperature controlled self -closing foundation vents are installed, the subfloor is not required to be insulated. 6) Glazing All glazed fenestration shall meet a minimum U-Factor of .32 as documented on the factory sticker on each window frame. 7) Exterior Wall Openings All exterior door jambs and window frames shall be sealed by the use of caulk or foaming material to prevent the passage of air through spaces between jambs, frames and framing members. All exterior wall base plates shall be sealed against the foundation wall or slab.