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RN-2012-00036_0004.tif u 236 PART 4 0 Energy Conservation# CHANGE TYPE: Clarification: o ® #. • CHANGE SUMMARY: Attic access openings and rim joist junctions Seal O f the Bu il d ing have been added to the list of specific locations requiring sealing to Th erm al Envelope prevent air infiltration. 2009 CODE: N1702.4.1 Building Thermal Envelope. Thebuild ; i . t � ing thermal envelope shall be durably sealed to limit infiltration The sealing methods between dissimilar materials shall allow for different tial expansion and contraction. The following shall be caulked, gases. keted, weatherstripped or otherwise sealed with an air barrier mate; '. e p� rial, suitable film or solid material . a 1. All joints, seams and penetrations. t 2: Site -built windows, doors, and skylights. 3. Openings between window and door assemblies and their re j; spective jambs and framing. ; z 4. Utility penetrations.' C 5. Dropped ceilings or chases adjacent to the thermal envelope 6. Knee walls. V Set 8 7. Walls and ceilings separating the garage from conditioned spaces: g k . Behind tubs and showers on exterior walls. p r ep- c ° d e ' 9. Common walls between dwelling units. C q P, C 10. Attic access openings., s� 11. Rim joist junction. 1012. Other sources of infiltration.. Chimneys &4A 0- AVJ Co nn�a�y � Recessed t lights r Attic hatch s, /i „ �j r _ u : 1 t Rim r, ; e Joist ,si t' Ceiling Rim joist windows corners r junctions _ST % require Electrical ® Doors sealing outlets t� } � Basement window r� Duct Sill 13 � A K N 8 00 seal Sill plates r= _:, rtaFA��:"-+Ei " "- h 9�c . m1 - - .".... i. : •"` --. y r� Typical sources of air leakage' J . �( 1 y