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<br /> Job Site Address: 3 S�� � ���� ���G+�� � PLACE YOUR CITY LOGO HERE �
<br /> Provided for your use-courtesy of the
<br /> "CATEGORY 1" ALTERNATE FOR �`'Y°�'n,"er�r°�e H�;�'„s
<br /> ONE & TWO FAMILY DWELLINGS � 65�-4��so �
<br /> I\STRUCTIONS: This alternative may be used for oue- and t��o-family dwellings built to meet the Category l requirements of
<br /> ,19innesota Rules,Chapter 7670. Complete Parts A, B, and C. Clearly mark plans�e�ith: insulation R-values; window and skylight U-
<br /> ��alues; size and type of equipment; equipment cont,�ols; and l�,cation ef vapor retarder znd �vindwash barriers. ;�1orz deia;leu
<br /> infoi�nation can be found in the A9irmesota Ene��7�Cor1e summary sheets available from the Minnesota Department of Commerce.
<br /> Part A. BUILDING EN�ELQPE
<br /> Check proposed envelope joint sealing option -� p Prescriptive(caulkine,gaskets,etc.) ❑ Perfonnance(tesi per 7670.0470 subp.7.C.)
<br /> Check thern�al energy calculation option used � ❑ "Cookbook" (complete worksheet belowl �TvTnC'hPrk,,,�f1,��1(:,r,��t;rP.,,.,,�
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<br /> 0 Perfom�ance (attach U-value calculations) ❑ Systems Analysis metl�od(attac6 analysis)
<br /> ��C'ookbook�� W�]-ksheet n�IN11�fUM REQUIREMENTS
<br /> (for"Cookbook"o tion only)
<br /> ❑ Ceiling Insulation: Minimum R-38 witl�7'/�"energy heel; or
<br /> In�srRUCTioNs Minimum R-44 with low truss heel; or
<br /> Step 1. Check item(s)that design meets on Minimwn Requiremei�ls list Minimum R-38 with R-5 sheathin when no attic.
<br /> to the right.Must meet all items to use"Cookbook"option. ❑ Ent Doors: Max.U-value of 0.30 or 1'/<"solid wood with stom�
<br /> Step 2. Indicate proposed wall type on table below. 0 Rim Joisi Insulation: Minimum R-19
<br /> Step 3. Indicate Window U-value and source. ❑ Fioors 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. O Foundation windows: 'h"insulated lass,wood or vin 1 frame
<br /> TABLE FOR DETERA']1NING n1AXIA'fUR1 WINDOW AND DOOR AREA
<br /> Maximum Allowable Total Window and Door Area as
<br /> aPercenta eofEx osedWall ]2"/0 14% 16% l8% 20% 22% 24% 26% 28%
<br /> Wall T e (Standard Framin ): Maximum Avera e Window U-value(exce t foundation windows):
<br /> D 2x4,R-13 insulation, R-7 sheathing 0.55 0.47 0.41 036 033 0.30 0.27 0.25 0.23
<br /> ❑ 2x4,R-15 insulation, R-5 sheathing 0.52 0.45 039 0.35 0.31 0.28 0.26 0.24 0.22
<br /> ❑ 2x6,R-19 insulation,<R-5 sheathinQ 0.48 0.41 0.36 032 0.29 0.26 0.24 0.22 0.21
<br /> ❑ 2x6,R-19 insulation, R-5 sheathing 0.56 0.48 0.42 0.37 034 0.31 0.28 0.26 0.24
<br /> ❑ 2x6,R-21 insulation,<R-5 sheathin 0.51 0.43 038 0.34 0.30 0.28 0.25 0.23 0.22
<br /> ❑ 2x6,R-21 insulation, R-5 sheathing 0.58 0.50 0.44 0.39 0.35 0.32 0.29 0.27 0.25
<br /> Wall T e (Advanced Framin ): Maximum Avera e Window U-value(exce t foundation windows):
<br /> ❑ 2x6,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 /> ❑ 2x6,R-21 insulation,<R-5 sheathin 0.55 0.47 0.41 036 0.33 0.30 0.27 0.25 0.23
<br /> O 2x6,R-21 insulation, R-5 sheathing 0.60 0.52 0.46 0.41 036 0.33 0.30 0.28 0.26
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<br /> Window U-value I � � Source: � O_NFRC ❑ ASHRAE ]993 Handbook (
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<br /> � ^ window&door area gross exposed wall area DESIGN ALLOWABLE (from table above)
<br /> MINNESOTA ENERGY CODE - WHICH RULES IVIAY l USE ?
<br /> TYPE OF RESIDENTIAL BUILDING APPLICABLE RULES
<br /> Detached R-3 occupancy 1-and 2-family dwellings Chapter 7672; or
<br /> Examples: sin le famil ,twin homes,duplexes Chapter 7670"Cate o 1" with statutory depressurization and��entilation requirements
<br /> Attached R-3 occupancy dwellings Chapter 7674; or
<br /> Exam ]es: tri lex townhouses and row houses Cha ter 7670 with either"Cate o ]" or "Cate o �2" rovisions
<br /> R-1 occupanc,y buildin�s of 3 stories or less Chapter 7674; or
<br /> Exam ]es: condominiums or a artments Cha ter 7670 with either"Cate o 1" or "Cate o 2" rovisions
<br /> R-1 occupancy buildings o��er 3 stories high Chapter 7676
<br /> Examples: high rise condos or apartments ,,.,,,,, a-
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