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1 * <br /> Job Site Address: city of Orono <br /> O4 �O� <br /> "CATEGORY 1" ALTERNATE FOR ';�. �;�j,�� F�'' <br /> �pr,�('4'1��^y�� <br /> ONE & TWO FAMILY DWELLINGS 95z=z4y�6� <br /> Ilvs'rltuc'r[oxs: This alteroative may be used for one-and two-family dwellings bailt 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 avaitable from the Minnesota Department of Commerce. <br /> Part A. BUILDING ENVELOPE <br /> Check proposed envelope joint sealing option � � Prescriptive(caulking,gaskets,etc.) ❑ performance(test per 7670.0470 subp.7.C.� <br /> Check thermal energy calculation option used� � "Cookbook" (complete worksheet below) ❑ MnCheck method(attach report) <br /> � Performance (attach U-value � Systems Analysis method(attach analysis) <br /> calculations) <br /> MINIMUM REQUIREMENTS <br /> "Cookbook" Worksheet tor KCookbook»o bon�, > <br /> ❑ Ceiling Insulation: Minimum R-38 with P/2"energy heel; or <br /> IrrsntucTiorrs Minimum R-44 with low hvss heel; ot <br /> Step 1. Check item(s)that design meets on Minirmrnr Requirements list Minimum R-38 with R-5 sheathin when no attic. <br /> to the right.Must meet all items to use"Cookbook"option. ❑ En Doors: M�.U-value of 0.30 or i'/<"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 sou�e. ❑ Floors over unconditioned s ces: Minimum R-24 <br /> Step 4. Verify total window(including area of all foundation windows) ❑ Foundation Insulation: Minimum R-10 <br /> And door area is equal or less than allowabie percentage. ❑ Foundation windows: '/2"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 Percen e of Ex sed Wall 12% 14% 16% 18% 20% 22% 24% 26°/a 28% <br /> Wall Type (Standard Framing): Ma�cimum Average Window U-value(except foundation windows): <br /> ❑ 2x4,R-13 insulation,?R-7 sheathing 0.55 0.47 0.41 0.36 033 ; 0.30 � 0.27 025 023 <br /> ❑ 2�c4,R-15 insulation,?R-5 sheathin 0.52 0.45 0.39 0.35 0.31 0.28 0.26 0.24 0.22 <br /> ❑ �6,R-19 insulation,<R-5 sheathin 0.48 0.41 0.36 0.32 029 026 0.24 0.22 021 <br /> ❑ 2x6,R-19 insularion,?R-5 sheathing 0.56 0.48 0.42 0.37 034 0.31 0.28 026 0.24 <br /> ❑ 2x6,R-21 insulation,<R-5 sheathin 0.51 0.43 0.38 0.34 0.30 028 0.25 0.23 022 <br /> ❑ 2x6,R-21 insulation,>-R-5 sheathin 0.58 0.50 0.44 0.39 0.35 0.32 0.29 0.27 025 <br /> Wall Type (Advanced Framing): Maximum Average Window U-va(ue(except foundation windows): <br /> ❑ �6,R-19 insulation,<R-5 sheathin 0.52 0.45 0.39 0.35 0.31 0.28 026 024 022 <br /> ❑ 2at6,R-19 insulation,?R-5 sheathing 0.58 0.50 0.44 0.39 0.35 0.32 0.29 0.27 025 <br /> O 2�c6,R-21 insulaUon,<R-5 sheathin 0.55 0.47 OA1 0.36 0.33 0.30 027 0.25 0.23 <br /> ❑ 2x6,R-21 insulation,>-R-5 sheathing 0.60 0.52 0.46 0.41 0.36 0.33 0.30 0.28 026 <br /> Window U-value: ,� �� I Source: `_ 0 NFRC ❑ ASHRAE 1993 Handbook <br /> 100 x 5 0 6 _ � ; -;� � �_��� < ___o_ <br /> winc ow&door area gross�d wall area DESIGN ALLOWABLE (from table above) <br /> MINNESOTA ENERGY C4DE - WH1CH RULES MAY l USE ? <br /> TYPE OF RESIDENTIAL BUILDING APPLICABLE RULES <br /> Detached R-3 cecupancy 1-and 2-family dwe�llittg,s Chapter 7672; or <br /> Exam les: sin le famil ,twin homes,du lexes Cha er 7670"C o 1" with statuto d ssurization and ventalation re uirements <br /> Attached R-3 occupancy dwellings Chapter 7674; or <br /> Exam les: fi lex townhouses and row houses Cha er 7670 with either"Cate o 1" or "Cate o 2" visions <br /> R-1 cecupancy buildings of 3 stories or less Chapter 7674; or <br /> Exam les: condominiums or a arhnents Cha r 7670 with either"Cate o 1" or "Cate o 2" ovisions <br /> R-1 occupancy buildings over 3 stories high Chapter 76'76 <br /> �-15- <br /> Exam (es: 6i h rise condos or a ents � <br /> 11 <br />