State Maps and Prescriptive Packages

Transcription

1 State Maps and Prescriptive Packages April 2000 The State Maps and Prescriptive Packages contain suppting materials that are needed when using the Envelope and Mechanical Compliance Guides. and other building envelope requirements and some mechanical system requirements vary by climate. The State Maps divide the United States into 33 different climate zones at a county level. Zones are numbered from 1 through 19 (consistent with the IECC and MECcheck climate zones) and have a, b, and c designations to reflect climate differences that affect cooling; e.g., cooling degree days and solar radiation. The climate maps are unchanged from Version 1. To determine the climate zone to use with your building, locate the map f your state and identify the zone number from the legend county list. To determine insulation and other building envelope requirements, find the prescriptive package number cresponding to your climate zone. The Envelope Compliance Guide employs a package approach that requires all components in your design to meet exceed the prescribed efficiency levels contained in the prescriptive package. If you find the prescriptive packages too constraining, consider using the COMcheck-EZ software, which allows tradeoffs among building envelope components. COMcheck-EZ TM Version 2.1, April 2000

2 WEST VIRGINIA Zone 10B Zone 11B Zone 12A Zone 13A Zone County 13A Barbour 11B Berkeley 10B Boone 11B Braxton 12A Brooke 10B Cabell 11B Calhoun 11B Clay 12A Doddridge 12A Fayette 11B Gilmer 13A Grant 12A Greenbrier 11B Hampshire 12A Hancock 12A Hardy 12A Harrison 11B Jackson 11B Jefferson Zone County 10B Kanawha 12A Lewis 10B Lincoln 10B Logan 12A Marion 12A Marshall 11B Mason 11B Mcdowell 11B Mercer 12A Mineral 10B Mingo 12A Monongalia 11B Monroe 11B Mgan 12A Nicholas 12A Ohio 13A Pendleton 11B Pleasants Zone County 13A Pocahontas 13A Preston 10B Putnam 12A Raleigh 13A Randolph 11B Ritchie 11B Roane 12A Summers 12A Tayl 13A Tucker 11B Tyler 12A Upshur 10B Wayne 12A Webster 12A Wetzel 11B Wirt 11B 11B Wyoming COMcheck-EZ Climate Map U.S. Department of Energy - Building Standards and Guidelines Program Version 2.1, April 2000

3 Climate Zone 10b Walls (a) Framed Minimum R-Value NA NA NA NA Any Spacing CMU, 8 in. greater Minimum R-Value with Integral (b) All Other Minimum R-Value Masonry Walls(c) Maximum U-Fact Any Any Any Any Any Any Maximum U-Fact All- Joist/Truss nwood Joist/Truss Concrete Slab Deck Purlin with Thermal Break Purlin without Thermal Break Flo All- Joist/Truss nwood Joist/Truss Concrete Slab Deck Minimum R-Value Minimum R-Value Minimum R-Value 17 NA 19 NA 19 NA 19 NA Minimum R-Value Minimum R-Value 18 X 20 X 20 X Minimum R-Value Minimum R-Value Minimum R-Value 13 NA 13 NA 13 NA 13 NA Slab Edge Basement Walls Minimum R-Value tes: (a) F walls next to unconditioned spaces, use the Low Fenestration Area wall requirements. - "NA" indicates the categy is not applicable. (b) Integral insulation in concrete masonry units may be perlite, vermiculite, other insulating material. - A minimum R-value of zero indicates no insulation is required. Minimum R-values are in addition to insulation in CMU voids. - "Any" indicates any available product will comply. (c) Use of the Other Masonry Walls categy is restricted to walls weighing 35 lb/ft2 me; - "X" indicates no complying option exists in the prescriptive packages. lightweight masonry veneers and unfilled CMUs <8 in. in thickness do not qualify.

4 Climate Zone 11b Walls (a,b) Framed Minimum R-Value (c) NA NA NA NA Any Spacing Minimum R-Value (d) NA 0 0 NA 0 0 NA 0 0 NA 3 0 CMU, 8 in. greater Minimum R-Value NA NA NA NA with Integral (e) Minimum R-Value All Other Minimum R-Value NA NA NA NA Masonry Walls(f) Minimum R-Value Maximum U-Fact Any Any Any Any Any Any Maximum U-Fact All- Joist/Truss nwood Joist/Truss Concrete Slab Deck Purlin with Thermal Break Purlin without Thermal Break Flo All- Joist/Truss nwood Joist/Truss Concrete Slab Deck Minimum R-Value Minimum R-Value Minimum R-Value 18 NA 19 NA 23 NA 23 NA Minimum R-Value X Minimum R-Value 19 X 20 X 24 X Minimum R-Value Minimum R-Value Minimum R-Value 15 NA 15 NA 15 NA 15 NA Slab Edge Basement Walls Minimum R-Value tes: (a) F walls next to unconditioned spaces, use the Low Fenestration Area wall requirements. (f) Use of the Other Masonry Walls categy is restricted to walls weighing 35 lb/ft2 me; (b) Where values are shown f both cavity and continuous insulation, both requirements must be met. lightweight masonry veneers and unfilled CMUs <8 in. in thickness do not qualify. (c) insulation is insulation between framing members furring strips and does not refer to integral insulation in CMUs. - "NA" indicates the categy is not applicable. (d) insulation is insulation that is continuous across structural members, and its effectiveness - A minimum R-value of zero indicates no insulation is required. is undimished by compression bridging. - "Any" indicates any available product will comply. (e) Integral insulation in concrete masonry units may be perlite, vermiculite, other insulating material. - "X" indicates no complying option exists in the prescriptive packages. Minimum R-values are in addition to insulation in CMU voids.

5 Climate Zone 12a Walls (a) Framed Minimum R-Value NA NA NA NA Any Spacing CMU, 8 in. greater Minimum R-Value with Integral (b) All Other Minimum R-Value Masonry Walls(c) Maximum U-Fact Any Any Any Any Any Any Any Maximum U-Fact All- Joist/Truss nwood Joist/Truss Concrete Slab Deck Purlin with Thermal Break Purlin without Thermal Break Flo All- Joist/Truss nwood Joist/Truss Concrete Slab Deck Minimum R-Value Minimum R-Value Minimum R-Value 16 NA 19 NA 23 NA 23 NA Minimum R-Value X Minimum R-Value 17 X 20 X 24 X Minimum R-Value Minimum R-Value Minimum R-Value 16 NA 16 NA 16 NA 16 NA Slab Edge Basement Walls Minimum R-Value tes: (a) F walls next to unconditioned spaces, use the Low Fenestration Area wall requirements. - "NA" indicates the categy is not applicable. (b) Integral insulation in concrete masonry units may be perlite, vermiculite, other insulating material. - A minimum R-value of zero indicates no insulation is required. Minimum R-values are in addition to insulation in CMU voids. - "Any" indicates any available product will comply. (c) Use of the Other Masonry Walls categy is restricted to walls weighing 35 lb/ft2 me; - "X" indicates no complying option exists in the prescriptive packages. lightweight masonry veneers and unfilled CMUs <8 in. in thickness do not qualify.

6 Climate Zone 13a Walls (a) Framed Minimum R-Value NA NA NA NA Any Spacing CMU, 8 in. greater Minimum R-Value with Integral (b) All Other Minimum R-Value Masonry Walls(c) Maximum U-Fact Any Any Any Any Maximum U-Fact All- Joist/Truss nwood Joist/Truss Concrete Slab Deck Purlin with Thermal Break Purlin without Thermal Break Flo All- Joist/Truss nwood Joist/Truss Concrete Slab Deck Minimum R-Value Minimum R-Value Minimum R-Value 14 NA 19 NA 23 NA 23 NA Minimum R-Value X Minimum R-Value 15 X 20 X 24 X Minimum R-Value Minimum R-Value Minimum R-Value 17 NA 17 NA 17 NA 17 NA Slab Edge Basement Walls Minimum R-Value tes: (a) F walls next to unconditioned spaces, use the Low Fenestration Area wall requirements. - "NA" indicates the categy is not applicable. (b) Integral insulation in concrete masonry units may be perlite, vermiculite, other insulating material. - A minimum R-value of zero indicates no insulation is required. Minimum R-values are in addition to insulation in CMU voids. - "Any" indicates any available product will comply. (c) Use of the Other Masonry Walls categy is restricted to walls weighing 35 lb/ft2 me; - "X" indicates no complying option exists in the prescriptive packages. lightweight masonry veneers and unfilled CMUs <8 in. in thickness do not qualify.