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1014Y-18-2001 08:50am From-CITY OF ORONO +9522494616 T-068 P 002 F-003
<br /> UCity of Orono
<br /> P.O.Box 66
<br /> "CATEGORY 1" ALTERNATE FOR ° ° Crystal q ,._ T
<br /> ? (952)24k J fo 1,
<br /> ONE & TWO FAMILY DWELLINGS oar
<br /> I\STRUCTION'S: This alternative may be used for one- and two-family dwellings built to meet the Category 1 requirements of
<br /> ,Iinnesota Rules,Chapter 7670. Complete Parts A,13,and C. Clearly mark plans with: insulation R-values; window and skylight 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 Nlinnesottt Energy Code summary sheets available from the Minnesota Department of Commerce.
<br /> ]Part A. BUILDING- ENVELOPE
<br /> Check proposed envelope joint sealu;opuot '-3•? Prescriptive(caulking,gaskets,etc) - 0 Performance(test per 7670.0470 subp 7 C)
<br /> Check the energy calculation option tistd "Cookbook" (complete worksheet below) ❑ MnCheck method(anach report) a.�
<br /> ,' ❑ Performance (anach U-value calculations) Q Systems Analysis method(attach analysis)
<br /> "Cookbook" Worksheet �� ML\1�1tfMREQUIREh1ENTs
<br /> for"Cookbook"option only)
<br /> Ceiling Insulation; Minimum R-38 with 7'1"energy heel; or
<br /> INSTRUCTIONS Minimum R-44 with low truss heel; or
<br /> Step I. Check item(s)that design meets on Minimum Requiremcrits list Minimum R-38 with R-5 sheathing when no attic.
<br /> to the right.Must meet all items to use"Cookbook"option. JIK Entry Doors: Max. U-value of 0.30 or 1'/."solid wood with storm
<br /> Step 2. Indicate proposed wall We on table below. 'X Rim Joist Insulation: Minimum R-19
<br /> Step 3. Indicate Window U-value and source. Floors over unconditioned spaces: Minimum R-24 N.A -
<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 allowable percentage. A Foundation windoo s: '/,"insulated glass,wood or vinyl frame
<br /> TABLE FOR DETERMINING iv1.a.;'DWN1 VVTXDOW AND DOOR AREA
<br /> N13ximum Allowable Total Window and Door Area as d' "
<br /> a Percent c ofExposed Wall - - 1_/. 14/0 1" n ` °
<br /> g , �o ° }4]6% l8% °0% 2�% 24% 26% ,, 28b/o ti
<br /> Wall Type (Standard Framing):, Maximum Average Window Ly value(exec t foundation windows):
<br /> 7 2x4,R-13 insulation,b R-7 sheathing 0-55 0.47 r„VOA1 0.36 033 0.:0 0.27 0.25 ; ':.r,,0.23,
<br /> D 2x4,R-15 insularion,0 R-5 sheathing 0.52 0.45 ;':0:39 0.35 03l 0-18 0.26 0.24. 0.21`1
<br /> 20,R-19 insulation.<R-5 sheathing 0.45 0.41.-. ,.�0 6 0.32 0.29 0.26 0.24 0.22 0.21,'i
<br /> 2x6,R-19 insulation, 4 R-5 sheathing 0.56_ 0.43 ;10.42 0.37 0.3: 031 0.28 0.26 • 0.24
<br /> 2x6,R-21 insulation,<R-5 shcathing C 0.51 0.43 t; '0.38 0.34 0. 0.33 0.25 0.23 0.22
<br /> 2x6,R-21 insulation,b R-5 sheathing .,0.5i 1 0.50 *O.44.. 0.39 0.35 0.32 0.29 0.27
<br /> Wall Type (Advanced Framing): Maximum Average Window U-value(except foundation'windows): �
<br /> O 2x6,R-19 insulation,<R-5 sheathing 0.52 0.45 {.; ;:,0.39 0.35 1 0.31 0.29 0.26 0.24 042::r
<br /> Q 2x6,R-19 insulation, 0 R-5 sheathing -0.58 UVI. 0.44;., 0.39 035 0.32 .0.29 0.27 ; 0.25"1
<br /> 0 2x6,R-21 insulation,<R-5 sheathing f 0.55 0.47 ig:'0.41 0.36 0.33 0.30 037 0.25 ' 0.23
<br /> O 2x6,R-21 insulation,b R-5 sheathing 0.60 0.52 " 0.46 r 0.41 1 0.36 0.33 0.30 0.23 ;:,'0.26
<br /> Window U value;`' `, rSouri ei 0 NFRC ASHIL4E 1993 Handbook
<br /> x
<br /> 100 x I #So x.69 /b•1 °°' <
<br /> window&door area gross exposed wall area 1, „ DESIGN ALLOWABLE (from table above) n Y11
<br /> ,,.
<br /> MAfLVIW- WAV0 FRENe-HCA CA5E^'-^'rS Kfjt� DM)Z-S. '116 /w/Age.0- v)Z 3.a3
<br /> MINNESOTA ENERGY CODE -- WHICH RULES MAY I USE ?
<br /> TYPE OF RESIDENTIAL BUMI)ING :.', ; APPLICABLE RULES
<br /> etached R-3 occupancy 1-and 2-family dwellings Chapter 7672, or
<br /> Examples: single fntnily,twin homes,du lexes'�; Chapter 7670"Category 1" with statutory depressurization and ventilarion requirements
<br /> Attached R-3 occupancy dwellings Chaptcr 7674, or,',
<br /> Examples: triplex townhouses and row houses ; ; •-.Chapter 7670 wit 'either"Category 1" or "Category-2" provisions
<br /> R-1 occupancy buildings of stories or less Chapter 7674,,or. .
<br /> Examples: condominiums or apartmentsChapter 7670 witli either"Category I" or "Category 2 provisions
<br /> R-1 occupancy buildings over 3 stories high Cbapter 7676
<br /> Examples. high rise condos or apartments " " 7w,m. {•,� ' tI�'"s`°
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