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, , ��o.�j;�Y.. <br /> City of Orono <br /> ��b � o�,� 2750 Keliey Parkway <br /> '� ' �; ��������a%� P.O. Box 66 <br /> ��� '" �xpe`;: <br /> 7ob Site Address: `i%, ��f�_(__.�,���U�� �- Crystal Bay, NIN 55323 <br /> Provided for your use-courtesy of the <br /> "CATE GORY 1" ALTERNATE FOR City of Inver Grove Heights <br /> , <br /> 3'(�IL <br /> ONE & TWO FAMILY DWELLINGS � 6�`�'0��0 � <br /> INSTRUCTIONS: This alternative may be used for one- and rivo-family dwellings built to meet the Category 1 requirements of <br /> Minnesota Rules, Chapter 7670. Complete Parts A, B, and C. Clearly mark plans with: insulation R-values; window and skyli�ht U- <br /> values; size and type of equipment; equipment controls; and location of vapor retarder and windwash barriers. More detailed <br /> information can be found in the Minnesota Energ��Code summary sheets available from the Minnesota Department of Commerce. <br /> Part A. BUILDING ENVELOPE <br /> Check ro osed envelo oint sealin o tion -� � Prescri tive caulkin , asl.ecs,etc. ❑ Performa � <br /> P P Pe1 g P P � 6 S ' ) nce(test per 7670.0470 subp. 7.C.) <br /> Cheek thennal energy ealeulation option used-� � "Cookbook" (complete worksheet below) ❑ MnCheck rnethod(attach report) <br /> ❑ Performance (attach U-value calculations) ❑ Systems Anatysis method(attach ana(ysis� <br /> ��Cookbook�� W�rksheet NIIN[MUNI RGQUIREMENTS <br /> for"Cookbook"o tion onl� <br /> Ceiling Insulation: Minimum R-38 with 7'/z"energy heel; or <br /> INSTRUCTIONS Minimum R-44 with low truss heel; or <br /> Step I. Check item(s)that design meets on A�/inimcrm Require�nenrs list Minimum R-38 �vith R-5 sheathin when no attic. <br /> to the right.Must meet all items to use"Cookbook"option. Gntr poors: Max.U-value of 0.30 or 1'h"solid wood with storm <br /> Stcp 2. Indicate proposed watl t��pe on table below. :� Rim Joisc Insulation: Minimum R-19 <br /> Step 3. lndicate 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 Iess than allowable percentage. Foundation windows: '/�"insulated lass,wood or vin 1 frame <br /> TABLE FOR DETERMINING MA,t1MUM WINDOW AND DOOR AREA <br /> Ma�imum Allowable Total Window and Door Area as <br /> a Percenta e of E� sed Wa(l 12% 14%0 16% ' 18%' 20% 22% Z4% 26% 28% ' <br /> Wall T (Sttindard Franiut : Maximum Avera e Window U-value exce t foundation windows): <br /> ❑ 2x4,R-13 insulation,��R-7 sheathin 0.55 0:47 0,41 0.36 0.33 030 0.27 0.25 0.23 <br /> ❑ 2x4,R-15 insulation,❑R-5 sheathin 0.52 0.45 0.39 0.35 0.3] OZ8 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 0.37 : 0.34 031 0.28 0.26 0.24 <br /> ❑ 2x6,R-21 insutation,<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-5 sheathin 0.58 0.50 0.44 0.39 0:35 0.32 0.29 0.27 0.25 <br /> Wall T Advanced Framin ): Maximum Avera e Window U-value(exce t foundation windows): <br /> ❑ 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 <br /> ❑ 2x6,R-19 insulation,❑R-5 sheathin 0.58 0.50 0.44 0.39 0.35 0.32 0.29 0.27 0.25 <br /> ❑ 2x6,R-2l insulation,<R-5 sheatliin 0.55 0.47 0.41 -036 0.33 0.30 0.27 0.25 0.23 <br /> ❑ 2x6,R-21 insulation,O R-5 sheathin 0.60 0.52 0.46 0.41 0.36 033 0.30 0.28 0.26 <br /> Window U-value: .,�7 Source: NFRC ❑ ASHRAE 1993 Handbook <br /> 100 X `� `�C� � - ����`1�.� � _ ! . �� °f� < �-� o� <br /> window&door area gross exposed wall acea DESIGN ALLOWABLE (from table above) <br /> MINNESOTA EIVERGY CODE - WHICH RULES MAY l USE ? <br /> TYPE OF RESIDENTIAL BUILDING APPLICABLE RULES <br /> Detached R-3 occupancy 1-and 2-family dwellings Chapter 7672; or <br /> Exam les: sin le famil ,twin homes,du lexes Cha ter 7670"Cate o 1" with statuto de ressurization and ventilation re uirements <br /> Attached R-3 occupancy dwellings Chapter 7674; or <br /> Exam les: tri le�.townhouses and row houses Cha ter 7670 with either"Cate o 1" or "Cate o 2" rovisions <br /> R-1 occupancy buildings of 3 stories or less Chapter 7674; or <br /> 'Exam les: condominiums or a artments Cha ter 7670 'with either"Cate o 1" or "Cate o 2" rovisions <br /> R-1 occupancy buildings over 3 stories high . Chapter 7676 <br /> Exam Ies: hi h rise condos or a artments �,.�, . � <br /> 11 <br />