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' Job Site Address: 3 3 SZ $a�CSrD E T�aa� � ��O��D �, "�ATEGORY 1" ALTERNATE FOR ��°Jj � � Z;'° ONE & TWO FAMILY DWELLINGS ClTY 0�o�oNo INSTRUCTIONS: This alternative may be used for one-and two-family dweliings 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 ---_ __ ._-. -__ --=. :._ _ -, : _ _z. _ ____ =-_- Check proposed envelopejoint sealing option � ❑ Prescriptive(caulking,gaskets,etc.) ❑ Performance(test per 7670.0470 subp.7.C.) _ _ Check thermal energy calculation option used-� , ❑ "Cookbook" (complete worksheet below) � MnCheck method(attach report) ❑ Performance (attach U-value calculations) ❑ Systems Analysis method(attach analysis) "Cookbook" Worksheet M�M�M�Q��NTS (for"Cookbook"o rion only) ❑ Ceiling Insulation: Minimum R-38 with 7%"energy heel; or IrrsTxucT�otvs 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 sheathin when no attic. to the right.Must meet all items to use"Cookbook"option. ❑ En Doors: Max.U-value of 030 or 1'/4"solid wood with storm Step 2. Indicate proposed wa11 type on table below. ❑ Rim Joist Insulation: Minimum R-19 Step 3. Indicate Window U-value and source. ❑ Floors over unconditioned s aces: 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: %z"insulated lass,wood or vin 1 frame Ti ABLE FOR DETERMINING MAXIMiJM WINDOW AND DOOR AREA Maacimum Allowable Total Window and Door Area as : a Percentage of Exposed Wall 12% 14% 16% 18% 20% 22% 24% 26% 28% Wall T e Standard Framin )' Ma�mum Average Window U-value(exce t foundation windows): ❑ 2x4,R-13 insulation, R-7 sheathing 0.55 0.47 0.41 0:36 033 0.30 0.27 0.25 0.23 ' ❑ 2x4,R-15 insulation, R-5 sheathing 0.52 0.45 0.39 035' 0.31 0.28 0.26 0.24 0.22 ' ❑ 2x6,R-19 insulation,<R-5 sheathin 0.48 0.41 0.36 032 0.29 0.26 0.24 0.22 0:21 ` ❑ 2x6,R-19 insulation, R-5 sheathing 0.56 0.48 0.42 037 0.34 031 0.28 0.26 0.24 ❑ 2x6,R-21 insulation,<R-5 sheathin 0.51 0.43 0.38 034 030 0.28 0:25 0.23 0.22 ❑ 2x6,R-21 insulation, R-5 sheatlling 0.58 0.50 0.44 039 0.35 0.32 0.29 0.27 0.25 Wall T e (Advanced Framin ): Maacimum Avera e Window U-value(exce t foundation windows`. ❑ 2x6,R-19 insulation,<R-5 sheathing 0.52 0.45 0.39 035 031 0.28 0.26 0.24 0.22 ' ❑ 2x6,R-19 insulation, R-5 sheathing 0.58 0.50 0.44 039 035 032 029 0.27 0.25 ❑ 2x6,R-21 insulation,<R-5 sheathin 0.55 0:47 0.41 036 033 030 0.27 0.25 0.23 ❑ 2x6,R-21 insulation, R-5 sheathing 0.60 0.52 0.46 0.41 0.36 033 0.30 0.28 0.26 Window U-value: � Source: ❑NFRC ❑ ASHRAE 1993 Handbook� 100 X � - - ° < �-_�o._ window&door area gross exposed wall area DESIGN ALLOWABLE (from table above) MINNESOTA ENERGY CODE - WHICH RULES MAY I USE ? TYPE OF RESIDENTIAL BUILDING APPLICABLE RULES ' Detached R-3 occupancy 1-and 2-family dwellings Chapter 7672; or �xamples: single family,twin homes,duplexes Chapter 7670"Category 1",with statutory depressurizarion a�d ventilation requirements Attached R-3 occupancy dwellings Chapter 7674; or Exam les: tri lex townhouses and row houses Cha ter 7670 with either"Category 1" or "Category 2": rovisions R-1 occupancybuildings of 3 stories or less Chapter 7674; or Exam les: condominiums or apartinents _Chapter 7670 with either"Category 1" or "Category 2". provisions R-1 occupancy buildings over 3 stories high Chaptet 7676 Exam les: high rise condos or a artments �s��