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« w ' � , ;� � ZY�,�,��° ��i�� Job S�te Address: :.�t��,G�ty'o��na;'. ,:r�� .. �¢ _ 1 CATEGORY 1 ALTERNATE FOR ��` �� cc » �� h p\�� ONE & TWO FAMILY DWELLINGS 952-249-4600 INS'r1tUCrtoNs: This alternative may be used for onc-and two-family dwellings buiit to meet the Category 1 requirements of Minnesota Ru{es,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 bamers. More detailed inforntation can be found in the Minnesota Ener�Code summary sheets available from the Minnesota Departmeni of Commerce. Part A. BUILDING ENVELOPE ��...a.....� _ ___..6,�..�.��.�«._��.��.�._.��.yv..�.�.� r.�.t� Check proposed envelope joint sealing option � � Prescnptive(cauiking,gaskets,etc.) ❑ p�o�ance(test per 7670 0470 subp_7.C.� _ _._.__ � Check therma!energy calculation option used-3 � "Cookbook" (complete worksheet betow) [� MnCheck method(attach report) � Performance (attach U-value ❑ Systems Analysis method(attach ar�alysis) calculations) t ��Cookbook�� Worksheet MINIMUMREQUIREMENTS for"Cookbaok"o tion on 0 Ceiling Insulation: Minimum R-38 with 7YZ"energy heel; or INSTRUCi70NS Minimum R-44 with low truss heel; or Step l. Check item(s)that design meets on Minimum Requirements list Minimum R-38 with R-5 sheathin when no attic. to the righL Must meet all items to use"Cookbook"optioa ❑ En Doors: Max.U-value of 0.30 or 1'/,"solid wood with storm Step 2. Indicate proposed wail type on table below. D Rim Joist Insulation: Minimum R-19 Step 3. Indicate Window U-value and source. 0 Floors over unconditioned s ces: Minimum R-24 Step 4. Verify total window(including azea of all foundation windows) ❑ Foundation Insulation: Minimum R-10 And door area is equal or less than allowable percentage. 0 Foundation windows: '/:"insulated lass,wood or vin 1 frame TABLE FOR DETERMIWING MAXIMUM WINDOW AND DOOR AREA Maximum Allowable Total Window and Doar Area as a Percen e of Ex sed Wall 12% 14% 16% 18°/a 20% 22% 24% 26% 28"/0 Wall T Standazd Framin : Maximum Av e Window U-value exce t foundation windows : ❑ 2x4,R-13 insulation,>_R-7 s}�eathin 0.55 6.4? 0.42 0.36 0.33 6.3d 0.27 0.25 Q.23 0 2x4,R-15 insulation,?R-5 sheathin 0.52 0.45 0.39 0.35 031 0.28 0.26 0.24 0.22 � 2x6,R-19 insulation,<R-S sheathic► 0.48 0.41 036 a p.32 • 0.29 0.26 0.24 0.22 0.21 ❑ 2x6,R-19 insulation,Z R-5 sheathin 0.56 0.48 0.42 d37 0.34 0.31 0.28 d.26 0.24 ❑ 2x6,R-21 insulation,<R-5 sheathin 0.51 0.43 �.38 0.34 0.30 0.28 0.25 0.23 0.22 ❑ 2x6,R-21 insulation,>_R-5 sheathing 0.58 0.50 0.44 0.39 0.35 032 0.29 0.27 0.25 Wall T (Advanced Framin : Maximum Aver e Window U-value exce t foundation windows: U 2x6,R-19 insulation,<R-5 sheathin 0.52 0.45 0.39 035 0.31 0.28 0.26 0.24 0.22 ❑ 2x6,R-19 insulaUon,>_R-5 sheathin 0.58 U.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 Q.41 0.36 0.33 0.30 0.27 0.25 0.23 ❑ 2x6,R-2l insulatian;>-R-5 sheathin� 0.6� 0.52 0.46 0.41 0.36 033 Q.30 0.2R 0.26 Window U-value: �� Source: ❑NFRC ❑ ASHRAE 1443 Handbook 100 X _L1 -' `,.' - [-.; ��. ,�;_-�_ � ;?� ° < ` �, o� , ' , ��, window&door area gross exposed watl area DESIGN ALLOWABLE (from table above) MINNESOTA ENERGY CODE - WHiCH RutEs Mar I UsE ? TYPE OF RESIDENTIAL BUILDING APPLICABLE RULES Detached R-3 occupancy 1-and 2-famity dwellings Chapter 7672; or F.,xam les: sin le famil ,twin homes,du lexes Cha ter 7670"Cate o 1" with statuto de ressurization and ventilation re uirements Attached R-3 occupancy dweilings Chapter 7674; or Exam les: tri lex townhouses and row houses Ch ter 7670 with either"Cate o P' or "Cate o 2" rovisions R-1 occupancy buildings of 3 stories or less Chapter 7674; or Exam les: condominiums or a astrnents Cha ter 7670 with either"Cate o 1" or "Cate o 2" ravisions R-1 occupancy buildings over 3 stories high Chapter 7676 4�} Exam les: hi rise condos or a artments � 11