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� � � � . A� �� � . Job Site Address: 3 V a� CASGD �011�!� � PLACE YOUR C]TY LOGO HERE � ' Provided for your use-counesy of the "CATEGORY 1" ALTERNATE FOR Ciry of Inver Grove Heights � ONE & TWO FAMILY DWELLINGS � 65�_�so_�sso � INSTRUCTIONS: This alternative may be used for one- and two-family d�i�ellings built to meet the Catego�y 1 requirements of Minnesota Ru1es,Chapter 7670. Complete Parts A,B,and C. Clearly mark plans with: insulation R-values; window and skylight U- va]ues; size and type of equipment; equipment controls; and location of vapor retarder and windwash barriers. More detailed infom�ation can be found in the�14innesotn Ene��}�Corle summary sheets available from the Minnesota Department of Commerce. Part A. BUILDING ENVELOPE _ _ Check proposed envelope joivt sealing option -� ❑ Prescriptive(caulking,gaskets,etc.) ❑ Perforniance(test per 7670.0470 subp.7.C.) Check thennal energy calculation option used� ❑ "Cookbook" (complete worksheet below) � MnCheck method(attach report) ❑ Perfbm�ance (attach U-value calculations) ❑ Systems Analysis method(attach analysis) « �� M1NTMiJM REQUIREA'IENTS Cookbook Worksheet (for"Cookbook"o tion only) ❑ Ceiling Insulation: Minimum R-38 with 7%"energy heel; or INSTRUCTIONS Minimum R-44 with low truss heel; or Step 1. Check item(s)that design meets on A�ininnnn Reqi�irements list Minimum R-38 with R-5 sheathin when no attic. to the right.Must meet all items to use"Cookbook"option. ❑ Ent Doors: Max.U-value of 030 or 1'/a"solid wood with storm Step 2. Indicate proposed wall rype on tabie be]ow. ❑ Rim Joist Insulation: Minimum R-19 Step 3. Indicate Window U-value and source. ❑ Floors over unconditioned s aces: Minimum R-24 Step 4. Verify total window(including area of all foundation windows) ❑ Foundation Insulation: Minimum R-]0 and door area is equal or less than allowable percentage. ❑ Foundation�a�indows: '/"insulated lass,wood or vinyl frame TABLE FOR DETERMINING MAaTMUM WINDOW AND DOOR AREA Maximum A]lowaUle Total Window and Door Area as a Percentage of Exposed Wall ]2% l4% 16% 18% 20% 22% 24% 26% 28% Wall T e (Standard Framin ): Maximum Avera e Window U-value(exce t foundation windows): ❑ 2x4,R-13 insulation, R-7 sheatliing 0.55 0.47 0.41 036 033 0.30 0.27 0.25 0.23 ❑ 2x4,R-IS insulation, R-5 sheatliing 0.52 0.45 039 0.35 0.31 0.28 0.26 0.24 0.22 O 2x6,R-19 insulation,<R-5 slieatl�in 0.48 0.41 036 032 0.29 0.26 0.24 0.22 0.21 ❑ 2x6,R-19 insulation, R-5 sheat]�ing 0.56 0.48 0.42 037 034 031 0.28 0.26 0.24 ❑ 2x6,R-21 insulation,<R-5 sheathin 0.51 0.43 038 034 030 0.28 0.25 0.23 0.22 O 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 ): M�ximum Avera e Window U-value(exce t foundation windows): ❑ 2x6,R-]9 insulation.<R-5 sheathin 0.52 0.45 0.39 0.35 03] 0.28 0.26 0.24 0.22 ❑ 2x6,R-19 insulation, R-5 sheatl�ing 0.58 0.50 0.44 0.39 035 032 0.29 0.27 0.25 ❑ 2x6,R-21 insulation,<R-5 sheatl�in 0.55 0.47 0.41 0.36 033 030 0.27 0.25 0.23 ❑ 2x6,R-21 insulation, R-5 sheathing 0.60 0.52 0.46 0.41 036 0.33 0.30 0.28 0.26 ,__,_._...._-.__., _.._ _.._ _ _ . . . T - __ __.. _ .. Window U-value: ! ; Source: ❑NFRC ❑ ASHRAE 1993 Handbook - ----___.......-- --------..._.-----________----.._..__...._____-------_.._.�� ;--------_�_ ---_---- r��_.._.�._------- ;- --_-.------....___-, - ---l �o o X �__ __ .._ ._ __----._. ...J = i. .. __._ .._____.._ ____ _ �____.__ __._.__.__°�o__ < i__ _ _.. . °�o__.� _ window&door area gross exposed wall area DESIGN ALLOWABL� (from taUle above) MINNESOTA ENERGY CODE - WHICH RULES MAY I USE ? TYPE OF RESIDENTIAL BUILDING APPLICABLE RULES Detached R-3 occupancy l-and 2-family dwellings Chapter 7672; or Examples: sin le fami] ,twin homes,duplexes Chapter 7G70"Catego 1" witli statutory depressurization and ventilation requirements Attached R-3 occupancy dwellings Chapter 7674; or Exam ]es: tri )ex 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 Chapter 7674; or Exam les: condominiums or a artments. Cha ter 7670 with either"Cate o 1" or "CateQo 2" rovisions R-1 occupancy buildings over 3 stories high Chapter 7676 L•xamples: hi h rise condos or apartments ��.,�»�, '