2003-P06851- addn/remodel/repair

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1 Job Site?,ddress: T/3 r �KAV Ile-44 + F PLACE YOUR CITY LOGO HERE 1 } Provided for your use-courtesy of the "CATEGORY 1" ALTERNATE FOR City of Inver Grove Heights ONE & TWO FAMILY DWELLINGS L 651-450-2550 INSTRUCTIONS: This alternative may be used for one- and two-family dwellings built to meet the Category 1 requirements of Minnesota Rules, Chapter 7670. Complete Parts A,B, and C. Clearly mark plans with: insulation R-values; window and skylight U- values; size and type of equipment; equipment controls; and location of vapor retarder and -windwash barriers. More detailed information can be found in the Minnesota Energy Code summary sheets available from the Minnesota Department of Commerce. Part A. BUILDING ENVELOPE _.___.resc_..w__.�_..m..._..�.�...._..�__ .__ Check proposed envelope joint sealing option Prescriptive(caulking gaskets,etc.) ❑ Performance(test per 7670.0470 subp. Check thermal energy calculation option used 4 ❑ "Cookbook" (complete worksheet below) ❑ MnCheck method(attach report) - ❑ Performance (attach U-value calculations) C] Systems Analysis method(attach analysis) "Cook-book" MININIUi Worksheet (for"Cookbook"option only) Ceiling Insulation: Minimum R-38 with 7%"energy heel; or INSTRUCTIONS Minimum R-44 with low truss heel; or Step 1. Check item(s)that design meets on Minimum Requirements list Minimum R-38 with R-5 sheathing when no attic. to the right.Must meet all items to use"Cookbook"option. Entry Doors: Max.U-value of 0.30 or 1'/,"solid wood with storm Step 2. Indicate proposed wall type on table below. `9 Rim Joist Insulation: Minimum R-19 Step 3. Indicate Window U-value and source. ❑ Floors over unconditioned spaces: Minimum R-24 Step 4. Verify total window(including area of all foundation windows) ❑ Foundation Insulation: Minimum R-10 and door area is equal or less than allowable percentage. ❑ Foundation windows: '/2"insulated glass,wood or vinyl frame TABLE FOR DETERMINING MAXIMUM WINDOW AND DOOR AREA Maximum Allowable Total Window and Door Areaas aPercentaee of Exposed Wall ' 12% 14% 16% 186/. '20% 1 22% %` 24 6% 28% Walt Type (Standard Framing): Maximum Average Window U-value(except foundation Mndows): ❑ 2x4,R-13 insulation, b R-7 sheathing 0.55 0.47 0.41 0.36 0.33 0.30 0.27 0.25 0.23 ❑ 2x4,R-15 insulation, & R-5 sheathing 0.52 0.45 0.39 0.35 0.31 0.28 0.26 0.24 0.22 ❑ 2x6,R-19 insulatioq,,-<R-5 s eat I 0.48 0.41 0.36 0.32 0.29 0.26 0.24 0.22 0.21. 2x6,R-19 insulatio , ll R-5 sheat 0.56 0.48 0.42 0.37 0.34 0.31 0.28 .2( 0.24 ❑ 2x6,R-21 insulation,<R-5 sheathing 0.51 0.43 0.35 0.34 0.30 0.28 0.25 ❑ 2x6,R-21 insulation, G R-5 sheathing 0.58 0.50 -0.44 1 0.39 1 0.35 0.32 1 0.29 1 0.27 1 025 Wall Type (Advanced Framing): Maximum Average Window U-value(except foundation windows): 2x6,R-19 insulation,<R-5 sheathing 0.52 0.45 0.39 0.35 0.31 0.28 0.26 0.24 0.22 ❑ 2x6,R-19 insulation, b R-5 sheathing 0.58 0.50 0.44 0.39 0.35 0.32 0.29 0.27 0.25 ❑ 2x6,R-21 insulation,<R-5 sheathing 0.55 0.47 0.41 0.36 0.33 0.30 0.27 .0.25 0.23 ❑ 2x6,R-21 insulation, b R-5 sheathing 0.60 0.52 0.46 0.41 0.36 0.33 0.30 0.28 0.26 Window U-value: -� Source: l ❑NFRC ❑ ASHRAE 1993 Handbook .Pt, /o window&door area gross exposed wall area DE GN ALLOWABLE (from table above) MINNESOTA ENERGY CODE - WHICH RULES MAY I USE ? TYPE OF RESIDENTIAL BUILDING APPLICABLE RL'I,ES Detached R-3 occupancy 1-and 2-family dwellings Chapter 7672; or ; Examples: single family,twin homes,duplexes . Chapter 7670"Category 1" with statutory depressurization and ventilation requirements' Attached R-3 occupancy dwellings Chapter 7674;=;:or. Examples: triplex townhouses and row houses r _Chapter 7670 with either"Category 1" or "Category 2" provisions R-1 occupancy buildings of 3 stories or less Chapter 7674;or .. Examples: condominiums or apartments Chapter 7670 with either"Category I" or "Category 2" provisions- R-1 occupancy buildings over 3 stories high Chapter 7676 'Examples: high rise condos or apartments ;,,, 11