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Iob Site Address: City of orono .. r'1 A �, M.I: � �t;X� � ��7 f�,7YQ�O��", "CATEG�RY 1" ALTERNATE FO� � � ` � ' ;� ��r F� < < �rh,{`��,�; ��,'°a�.sxo4.� ONE & TWO FAMILY DWELLINGS 952-249-4600 INSTRUCTIONS: This alternative may be used for one-and two-family dwellings built to meet the Category 1 requirements of AZinnesota 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 e�quipment; equipment controls; and location of vapor retarder and windwash barriers. More detailed information can be found in the RTin�zesota E��er��Cocfe sununary sheets available fi-om t11e Minnesota Departnlent of Commerce. Part A. BUILDING ENVELOPE Check proposed envelope joint sealing option -� � Prescriptive(caulking,gashets,etc.) ❑ perforniance(test per 7670.0470 subp. 7.C.� Check thern�al energy calculation option used � � "Cookbook" (complete worksheet below) � MnCheck method(attach report) � Perfonnance (attach U-value calculations) � Systems Analysis method(attach analysis) MINI1�7Uh'I RE UiREMENTS ��Cookbook�� Worksheet for"Cookbo�"o tion only) � Ceiling Insulation: Minimum R-38 with 7'/"energy heei; or INSTRUCTIONS Minimum R-44 with low truss heel; or Step I. Check item(s)that design meets on rLfrnrmum Requirements list Minimum R-38 with R-5 sheadiin when no attic. to the right. Must meet all items to use"Cookbook"option. � Entry Doors: Mas.U-value of 0.30 or I'/"solid wood with stonn Step 2. Indicate proposed wall type on table below. 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 allowlble percentage. ❑ Foundation windows: '/2'insulated alass,wood or vinyi frame TABLE FOR DETERMININC MAXIMUM WINDOW AND DOOR AREA Maximum Allowab(e Total Window and Door Area as a Percenta e of Ex sed Wall 12% 14% 16% 18% 20% 22% 24% 26% 28% Wall T e (Standard Framin ): Maximunt Avera e Window U-value(exce t foundation windows): ❑ 2x4, R-13 insulation, >_ 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 0.45 039 0.35 0.31 0.28 0.26 0.24 0.22 ❑ 2x6, R-19 insulation,<R-5 sheathin 0.48 0.41 0.36 0.32 0.?9 0.26 0.24 0.22 0.21 2x6, R-19 insulation,>_ R-5 sheathing 0.56 0.48 0.42 0.37 0.34 031 0.28 0.26 0.24 ❑ 2x6, R-21 insulation,<R-5 sheathin 0.51 0.43 0.38 0.34 0.30 0.28 0.25 0.23 0.22 ❑ 2x6, R-2l insulation,>_ R-5 sheathing 0.58 0.50 0.44 0.39 0.35 0.32 0.29 0.27 0.25 Wall T e (Advanced Framin ): Maximum Avera e Window U-value(exce t foundation windows): ❑ 2x6, R-19 insulation,<R-5 sheathin 0.52 0.45 0.39 0.35 0.31 0.28 0.26 0.24 0.22 ❑ 2x6, R-19 insulation,z R-5 sheathing U.58 0.50 0.44 0.39 0.35 0.32 0.29 0.27 0?5 ❑ 2x6, R-21 insulation,<R-5 shcadiing 0.55 0.47 0.41 0.36 0.33 0.30 0.27 0.25 0.23 ❑ 2s6, R-21 insulation,� R-5 sheathing 0.60 0.52 0.46 0.4] 0.36 0.33 0.30 0.28 0.26 Window U-value: , T.`�. i Source: ❑ NFRC ❑ ASHRAE 1993 Handbook i _._ .,, .__ . . �__�.. __... . __ �.__.._ _.__, _.,��..__.. _. 100 X _._a��. � . . __ i = .�7 �_�. _ . _ � _ _% ' < . ;1-�_ % window&door area gross exposed wall area DESIGN ALL ABLE (from table above) M/NNESOTA ENERGY CODE WH/CH RULES MAY I USE � TYPE OF RESIDENTIAL BUILDING APPLICABLE RULES Detached R-3 occupancy i-and 2-family dwellings Chapter 7672; or Exam les: sin le famil ,twin homes,du lexes Cha ter 7670"Cate o I" with statuto de ressurization and ventilation re uirements Attached R-3 occupancy dwellings Chapter 7674; or Exam les: h-i lex townhouses and row houses Cha ter 7670 with either"Cate o 1" or "Cate o 2" rovisions R-1 occupancy buildings of 3 stories or less Chap[er 7674; or Exam les: condominiums or a artments Cha ter 7670 with either"Cate orv 1" or "Cate o 2" rovisions R-1 occupancy buildings over 3 stories high Chapter 7676 Exam les: hiQh rise condos or a arhnents `"'«'° 11