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� <br /> . r <br /> j ��:��� ���� <br /> � <br /> lo <br /> Job Site Address: Ciry of orono <br /> ��'� "o\, <br /> ,, <br /> cc �� i''� i;�%�r_ �;' <br /> CATEGORY 1 ALTERNATE FOR ��x���;o�i <br /> ONE & TWO FAMILY DWELLINGS 952-249-4600 <br /> INS'rRUC'r�oNs: This alternative may be used for one-and two-family dwellings built to meet the Category 1 requirements of Minnesota <br /> Rules,Chapter 7670. Complete Parts A,B,and C. Clearly mark plans with: insulation R-values; window and skylight U-values;size and type <br /> of equipment; equipment controls; and location of vapor retarder and windwash barriers. More detailed information can be found in the <br /> Minnesota Energy Code summary sheets available from the Minnesota Department of Commerce. <br /> Part A. BUILDING ENVELOPE <br /> P P P J g P ..❑ ....,.. p ,_A.,�, ,_g>� ) ❑ Performance.� ,.�p ��.a.. .... � .,...... .. <br /> Check ro osed envelo e'oint sealin o tion � Prescri t�ve caulkin askets,etc. test er 7670.0470 subp.7.C.� � <br /> � <br /> � <br /> Check therrnal energy calculation option used� � "Cookbook" (complete worksheet below) /�MnCheck method(attach report) � <br /> F <br /> � Performance (attach U-value � Systems Analysis method(attach analysis) <br /> calculations) <br /> ��Cookbook�� Worksheet MINIMUM REQUIRENIENTS <br /> for"Cookbook"o tion onl <br /> ❑ Ceiling Insulation: IViinimum R-38 with 7%z"energy heel; or <br /> INSTRUCTIONs Minimum R-44 with low truss heel; or <br /> Step 1. Check item(s)that design meets on Minimum Reyuirements list Minimum R-38 with R-5 sheathin when no attic. <br /> to the right.Must meet all items to use"Cookbook"option. ❑ Entrv Doors: Max.U-value of 030 or 1'/4"solid wood with storm <br /> Step 2. Indicate proposed wall type on table below. ❑ Rim Joist Insulation: Minimum R-19 � <br /> Step 3. Indicate Window U-value and source. ❑ Floors over unconditioned s aces: Minimum R-24 <br /> Step 4. Verify total window(including area of all foundation windows) ❑ Foundation Insulation: Minimum R-]0 <br /> and door area is equal or less than allowable percentage. ❑ Foundation windows: '/z"insulated lass,wood or vin 1 frame <br /> TABLE FOR DETERMINING MAXIMUM WINDOW AND DOOR AREA <br /> Maximum Allowable Total Window and Door Area as <br /> a Percenta e of Ex osed Wall 12% 14% l6% 18% 20% 22% 24% 26% 28% <br /> Wall T e (Standard Framin : Maximum Avera e Window U-value(exce t foundation windows : <br /> ❑ 2x4,R-13 insulation. >-R-7 sheathing 0.55 0.47 0.41 036 0.33 0.30 . 0.27 0.25 0.23 <br /> ❑ 2x4,R-I S insulation, >-R-5 sheathing 0.52 0.45 0.39 0.35 031 0.28 0.26 0.24 0.22 <br /> ❑ 2x6,R-19 insulation,<R-5 sheathin 0.48 0.41 0.36 0.32 0.29 0.26 0.24 0.22 0.21 <br /> ❑ 2x6,R-19 insulation,>-R-5 sheathing 0.56 0.48 0.42 037 034 0.31 0.28 0.26 0.24 <br /> ❑ Zx6,R-21 insulation,<R-5 sheathin 0.51 0.43 0.38 0.34 0.30 0.28 0.25 0.23 0.22 <br /> ❑ 2x6,R-21 insulation, >- R-� sheathing 0.58 0.50 0.44 0.39 0.35 0.32 0.29 0.27 0.25 <br /> Wall T e (Adva�ced Frarnin ): Maximum Avera e Window U-value(exce t foundaCion windows): <br /> ❑ Zx6.R-19 insulation,<R-5 sheathin 0.52 0.45 039 0.35 0.31 0.28 0.26 0.24 0.22 <br /> ❑ 2x6,R-19 insulation,>-R-5 sheathing 0.58 0.50 0.44 0.39 0.35 0.32 0.29 0.27 0.25 <br /> ❑ 3x6,R-21 insulation,<R-5 sheathin 0.55 0.47 0.41 0.36 0.33 0.30 0.27 0.25 0.23 <br /> ❑ ?x6.R-21 insulation,>-R-5 sheathing 0.60 0.52 0.46 0.41 0.36 0.33 030 0.28 0.26 <br /> Window U-value: i� � - Source: �� ❑NFRC� ❑ ASHRAE 1993 Handbook <br /> _._ �____._ �.�. ________ ___.�__. ___�__.__________.�._... �.,_..m.._ _, <br /> • _ O � 0 � <br /> 100 X �___ __ � : - _ _ - _ ��. < �����. lo ! <br /> window&door area gross exposed wall area DESIGN ALLOWABLE (from table above) <br /> MINNESOTA ENERGY CODE- WHICH RULES MAY 1 USE ? <br /> TYPE OF RESIDENTIAL BUILDING APPLICABLE RULES <br />