Laserfiche WebLink
� � <br /> �oU Site Address: , � PLACE YOUR CITY LOGO HERE � <br /> Provided fbr your use-courtesy of the <br /> � City of Inver Grove Heights <br /> "CATEGORY 1" ALTER.NATE FOR � <br /> ONE & TWO FAMILY DWELLINGS � 65�_�So_�sso � <br /> INSTRUCTIONS: This alternative may be used for one- and t�vo-family d�ti�ellings built to meet the Catego�y 1 requirements of <br /> Minnesota Rules,Chapter 7670. Complete Parts A,B,and C. Clearly mark plans with: insulation R-values; window and skylight U- <br /> values; size and type of e�uipment; equipment contro]s; and location of vapor retarder and wind��ash baniers. More detailed <br /> infom�ation can be found in the A4innesotn Ene�bo}�Co�le summary sheets available from the Minnesota Deparm�ent of Commerce. <br /> Part A. BUILDING ENVELOPE <br /> _ <br /> Check proposed envelope joint sealing option -� ❑ Prescriptive(caulking,gaskets,etc.) ❑ Perfomiance(tesi per 7670.0470 subp.7.C.) <br /> Check thermal energy calculation option used� ❑ "Cookbook" (complete worksheet belowj � MnCheck method(attach report) <br /> ❑ Perfom�ance (attach U-value calculations) ❑ Systems Analysis method(attach analysis) <br /> "Cookbook" Worksheet MINTA9UM REQUIRENIENTS <br /> (for"Cookbook"o tion onlv) <br /> ❑ Ceiling Insulation: Minimum R-38 with 7%"energy heel; or <br /> INSTRUCTIONS Minimum R-44 with low truss heel; or <br /> Step 1. Check item(s)that design meets on h4iniminn Reyuiremen�s 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 030 or 13/4"solid wood with storm <br /> Step 2. Indicate proposed wall t��pe on table below. 0 Rim 7oist Insulation: Minimum R-19 <br /> Step 3. Indicate 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 Tnsulation: Minimum R-]0 <br /> and door area is equal or less than allowable percentage. ❑ Foundation�a�indows: '/"insulated lass,wood or vinyl frame <br /> TABLE FOR DETERMINING MAJ�IMUM WINDOW AND DOOR AREA <br /> Maximum AllowaUle Total Window and Door Area as <br /> a Percentage of Exposed Wall ]2% l4% 16% 18% 20% 22% 24% 26% 28% <br /> Wall T e (Standard Framin ): Maximum Avera e Window U-va]ue(exce t foundation windows): <br /> ❑ 2x4,R-13 insulation, R-7 sheathing 0.55 0.47 0.41 0.36 033 030 0.27 0.25 0.23 <br /> ❑ 2x4,R-15 insulation, R-5 sheathing 0.52 0.45 0.39 035 0.31 0.28 Q.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 0.42 037 034 031 0.28 0.26 0.24 <br /> ❑ 2x6,R-21 insulation,<R-5 sheathin 0.51 0.43 038 034 030 0.28 0.25 0.23 0.22 <br /> ❑ 2x6,R-21 insulation, R-5 sheathing 0.58 0.50 0.44 039 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 sheatl�ing 0.58 0.50 0.44 0.39 035 0.32 0.29 0.27 0.25 <br /> ❑ 2x6,R-21 insulation,<R-5 sheatliin 0.55 0.47 0.41 0.36 033 030 0.27 0.25 0.23 <br /> ❑ 2x6,R-21 insulation, R-5 sheatl�ing 0.60 0.52 0.46 0.41 0.36 0.33 0.30 0.28 0.26 <br /> ----._..__.__., - - - - -- - -- ___ ... ..... <br /> Window U-value: ; ; Source: ❑NFRC 0 ASHRAE 1993 Handbook <br /> --------....-- -----..�----------....---____.._._.__..._.__,....----------------� <br /> ._..._..---..�_ --- _._ _. _ _-- .._ , .�_. ..__�_ ,._ <br /> �oo x �--- _ ____._ �l = ! � - ► _ _ . % l < f %o.i <br /> _ . �..... ._p .._.._ .... - _..._ _. � ) <br /> window&door area oss ex osed wall area DESIGN ALLOWABL� fran taUle aUove <br /> MINNESOTA ENERGY CODE - WHICH RULES MAY I USE ? <br /> TYPE OF RESIDENTIAL BUILDING APPLICABLE RULES <br /> Detached R-3 occupancy l-and 2-Tamily dwellings Chapter 7672; or <br /> Examples: sin le famil ,twin homes,duplexes Chapter 7G70"Catego 1" with statutory depressurization and ve�itilation requirements <br /> Attached R-3 occupancy dwellings Chapter 7674; or <br /> Exam les: tri lex townhouses and row houses Cha ter 7670 with either"Cate o 1" or "Cate o 2" rovisions <br /> R-i 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 bnildings o��er 3 stories high Chapter 7676 <br /> Lxamples: hi h rise condos or apartments �;.,�»., <br />