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� M ' f ~ Tob Site Address: 4�JC� ��C�(�I/� �O/�T �/4'� �G lE'� ►�� . � "CATEGORY 1" ALTERNATE FOR ONE & TWO FAMILY DWELLINGS INSTRUCTIONS: This alternative may be used for one- and ri��o-family d��ellings built to meet the Category 1 i•equii-ements of Minnesota Rulcs, Chapter 7670. Complete Parts A, B, and C. Cleai-ly mark plans with: insulation R-values; window a�ld skylight U- values; size and type of equipment; equipment controls; and ]ocation of vapor retarder and ��indwash barriers. More detailed infonnation can be found in tl�e Nlinraesotn Energv Code summary sheets available from the Minnesota Department of Commerce. Part A. BUILDING ENVELOPE _ . __ , _ _ _: ___� _-:. Check proposed envelope joint sealing option � ❑ Prescriptive(caulking,gaskets,etc.) ❑ Perfonnance(test per 7670.0470 subp. 7.C.) Check thermal enerc�ry calculation option used-� ❑ "Cookbook" (complete worksheet below) � MnCheck method(attach report) ❑ Perforn�ance (attach U-value calculations) � Systems Analysis method(attacli analysis) � � MINIMUM REQUIREMENTS ��Cookbook�� Worksheet �for"Cookbook"o tion onl �) ❑ Ceiling]nsulation: Minimum R-38 with 7'/z"energy heel; or INsrrtuCT�oNs Minimum R-44 witl�]ow truss heel; or Step L Check itern(s)that design meets on Mi��imt�na Reqirire�rients 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'/4"solid wood with storm Step 2. Indicate proposed wall type on table below. ❑ Rim Joist]nsulation: Minimum R-19 Step 3. Indicate Window U-value and source. ❑ Floors over unconditioned s aces: Minimum R-24 SteP 4. Verify total window(includine area of all foundation windows) ❑ Foundation]nsulation: Minimum R-10 and door area is equal or less than allowable percentage. ❑ Foundation windows: '/z"insulated glass,wood or vinyl fi-ame TABLE FOR DETERMINING MAXIAIUM WINDOVV AND DOOR ARF.A Maximum A]]owable Total Window and Door Area as a Percentage of Ea osed Wall 12"/0 14% 16% 18% 20% 22% 24% 26% 28% Wall T e (Standard Framin ): Maximum Avera e Window U-value(exce t foundation windo�e�s): ❑ 2x4,R-13 insulation, R-7 sheathing 0.55 0.47 0.41 0.36 0.33 0.30 0.27 0.25 0.23 ❑ 2x4,R-15 insulation, R-5 sheathing 0.52 0.45 0.39 03� 0.3] 0.28 0.26 0.24 0.22 ❑ 2x6,R-19 insulation,<R-5 sheathin 0.48 U.4] 0.36 0.32 0.29 0.26 0?4 0.22 0.21 ❑ 2x6,R-19 insulation, R-5 sheathing 0.56 0.48 0.42 037 034 0.31 0.28 0.26 0.24 ❑ 2x6,R-2] insulation,<R-5 sheathin 0.51 0.43 0.3� 0.34 0.30 0.28 0.25 0.23 0.22 ❑ 2x6,R-21 insulation, R-5 sheathing 0.58 0.50 0.44 0.39 035 0.32 0?9 0.27 0.25 Wall T� e (Advanced Framin ): Maximmn Avera*e Windo«�U-value(exce t foundation windows): Q 2x6,R-]9 insulation,<R-5 sheathin� 0.52 0.45 0.39 035 031 0.28 U.26 0.24 0.22 ❑ 2x6,R-19 insulation, R-5 sheathing � 0.58 0.50 0.44 0.39 035 0.32 0.29 0.27 0.25 ❑ 2x6,R-2I insulation,<R-5 sheathin 0.55 0.47 0.41 C.36 0.33 0.30 0.27 0.25 0.23 0 2x6,R-21 insulation, R-5 sheathing 0.60 0.52 0.46 0.41 0.36 0.33 030 0.28 0.26 V✓indow U-value: � _� Suurce: ❑NFRC ❑ ASHRAE 1993 Handbook � �--------- ` - - - .- � - � _------ ---------- . _ o � o �Oo x [--------�-1 - �-- -- ----� - �----___l�7 C_ �a_ window&door area gross exposed wall area DESIGN ALLOWABLE (from taUle aUove) �I'��Q ►�i� ��r��'►�! �.�'�� - �vF►'�CP-6 �'if1`L�S i�,4 i 0 �� :� Tl'PE OF RESIDENTTAL BUILDING APPLICABLE RULES Betached R-3 occupancy 1-and 2-iamily d�e�c!lings Chapter 7672; or Exa�nples: single family,twin homes,duplexes Chapter 7670"Category 1" with statutory depressurization a�d ventilation requirements Attacl�ed R-3 occupancy dwellings Chapter 7674; or Exam�les: tri lex townllouses and row houses Cha ter 7670 with either"Cate ory 1" or "Cate o 2" rovisions R-1 occupancy buildin;s of 3 stories or less Chapter 7674; or Exam les: condominiums or apartments Chapter 7670 with either"Category 1" or "Cate o 2" rovisions R-1 occupancy buildings over 3 stories high Chapter 7676 �- Exam les: hi h rise condos or a artments �5=�