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<br /> •Job Site Address: ��� �� � PLACE YOUR::,ITI'LOGO HERE �
<br /> '�- � �-'� . Provided for your use-courtesy of the
<br /> 6GCATEGORY 1" ALTERNATE FOR City of Inve�r�e Heights
<br /> ONE & TWO FAMILY DWELLINGS � 6��-��50 �
<br /> INSTRUCTIO\S: This alternative may be used for one- and two-famil}� d�vellings built to meet the Categorr• 1 requirements of
<br /> �Tinnesota Rules, Chapter 7670. Complete Parts A,B, and C. Clearly mark plans�vith: insulation R-��alues; window and skylight U-
<br /> ��alues; size and type of equipment; equipment controls; and location of vapor retarder and «�indwash bamers. More detailed
<br /> information can be found in the��Iinnesota Energy Code summary sheets available from the vlinnesota Depamnent of Commerce.
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<br /> Part A. BUILDING ENVELOPE .
<br /> . _._ ._..n.. �.�..�_�.__� _. . .� __ ._� .. ._.�_�_.___.._..____._.___��.__.�_.�_:
<br /> Check proposed envelope joint sealing option � Prescriptive(caulking,gaskets,etc.) ❑ Performance(test per 7670.0470 subp.7.C.) ;
<br /> .. ., _ ,,_, _, _ _ ,:
<br /> Check thermal energy calculation option used-� � "Cookbook" (complete worksheet below) ❑ MnCheck method(attach report) ��
<br /> ❑ Performance (attach U-value calculations) ❑ Systems Analysis method(attach analysis) �
<br /> GG » �IlNI�IUII REQUIREI�IENTS
<br /> Cookbook Worksheet �for«�oo�:boo�:,,ophon on,��
<br /> (�. Ceiling Insulation: Nfinimum R-38 with 7'/Z"energy heel; or
<br /> IvsTauCTio�s Minimum R-44 with low truss heel; or
<br /> Step 1. Check itern(s)that design meets on Minimtrm Requirements list IVlinimum R-3S «�ith R-5 sheathing�vhen no attic.
<br /> to the rieht.�1ust meet all items to use"Cookbook"option. Entry Doors: v1at.U-value of 0.30 or 1'/<"solid wood with storm
<br /> Step 2. Indicate proposed wall type on table below. Rim Joist Insulation: Minimum R-19
<br /> Step 3. Indicate Nindow U-value and source. Floors over unconditioned spaces: Minimum R-24
<br /> Step 4. Verify total window(including area of all foundation windo�vs) Foundation Insulation: Minimum R-10
<br /> and door area is equal or less than allowable percentage. � Foundation windo���s: 'h"insulated glass,wood or vinyl frame
<br /> TABLE FOR➢ETERIII\'ING�L4YI�SU INDO�V A!D DOOR ARE_�,
<br /> Maximum Ailowable Total�Vindo�v and Door Area as
<br /> a Percentaae of Exposed Watl 13% 14% ' l6% � 18°/o 20% 22% 2�3% 26°�0 28°/a
<br /> �VaII Ty�pe (Scandard Framing): Maximum Average�Vindo�v i-value(except foundarion«-indows):
<br /> ❑ 2x�,R-13 insulation, b R-7 sheathing 0.5� 0.47 , 0.41 0.36 0.33 0.30 0.27 0.2� 4.23
<br /> ❑ 2x4,R-l� insulation, b R-5 sheathing 0.�2 0.4� 0.39 U.35 0.31 0.28 0.26 0.24 0.22
<br /> 2Y6,R-19 insulation,<R-5 sheathing 0.45 0.41 + :0.36 0.3? 0.29 0.26 0.24 0.22 0.21
<br /> 2x6,R-19 insulation, b R-5 sheathing 0.56 0.48 � 0.42 037 0.3�3. 031 0.2S 0.26 0.24
<br /> 2x6,R-21 insulation,<R-5 sheathing 0.51 0.43 ^ 0:38 0.34 0.30 0.28 0.2� 0.23 - 0.22
<br /> ❑ 2x6,R-21 insulation, b R-5 sheathing 0.�8 Q50 � O:�14 039 0.3� 032 0.29 0_27 D?� `
<br /> Wall Type (Advanced Framing}: Maximum Avera�e�'indow -value(except foundarion�vindou-s):
<br /> ❑ 2�c5, R-19 insulation,<R-5 sheathing 0.�2 0.4� ; -0.39 0.3� 0.31 0.25 0.26 0.24 0.22
<br /> ❑ 2x6,R-19 insulation, 1 R-5 sheathing ' 0.�8 0.50 � 0.� 0.39 ' 0.35 0.32 0.29 0:27 Q.25
<br /> ❑ 2x6,R-2 i insulation,<R-�sheathin� 0.5� 0.47 0.41 036 0.33 ' 0.30 0?7 0.2� 0.23
<br /> �3 2x6,R-�l insu'. :-ioa, �: R-5 sheathi: :: 0.60 0.52 .46 • O.�l , ��.36 0.�3 030 0.23 Q.26
<br /> Windo�v U-value: . ��{ i ��,((_` �?A�(,� ' Source: ❑NFRC ❑ ASHRAE 1993 Handbook
<br /> 100 x � ;� �`i s< �V �I ��fl,�- a �t� _ _ % < I ,��-� %
<br /> window&door area gross exposed wall area DESIGN ALLO«'�BLE (from table above)
<br /> MINNESOTA ENERGY CODE - WH/CH RULES MAY I USE ?
<br /> TYPE OF RESIDENTIr1L BUILDING APPLICABLE RUL.ES
<br /> Detached R-3 occupancy i-and 2-famih•d�r�ellin;s Chapter 7672; or
<br /> Examples� single family,hvin homes,duplexes : -' Chapter 7670"Category 1" �vit::statutory depressurization a�-�d venriladon requirements
<br /> ,�ttached R-3 occupancy dweilings Chapter 7674; or
<br /> Esamples: triplex townhouses and row houses , - Chapter 7670 a,�ith either"Category 1" or "CateQorv 2" pro4isions
<br /> R-1 occupancv buildin;s of3 stories or less Chap[er 7674; or
<br /> Examples: condominiums or apartments Chapter 7670 with either"Category 1" or "Ca[eeory�2" pro4isions
<br /> R-1 occupan cy buildings over 3 stories high ' Chapter 7676
<br /> Examp(es: hi�h rise condos or apamnents �.�
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