RN-2012-00005_0003.tif I,
236 PART 4 0 Energy Conservation
7
CHANGE TYPE: Clarification ,
• •£,
Sealing O the Build CHANGE SUMMARY: MARY: Attic access openings and rim joist junctions ,
have been added to the list of specific locations requiring sealing to
Thermal Envelope prevent air infiltration.
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2009 CODE: NI 102.4.1 Building Thermal Envelope. The buildi' '
ing thermal envelope shall be durably sealed to limit infiltration The-
sealing methods between dissimilar materials shall allow for differen=xy
tial expansion and contraction. The following shall be caulked, gas
keted, weatherstripped or otherwise sealed with an air barrier mate'
Hal, suitable film or solid material. = `
1. All joints, seams and penetrations.
2: Site -built windows, doors, and skylights.
3. Openings between window and door assemblies and their re -
spective jambs and framing.
4. Utility penetrations..
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Ce Y `(� 5. Dropped ceilings or chases adjacent to the thermal envelope
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6. Knee walls.
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V w � $ Se- ,t L 7. Walls and ceilings separating the garage from conditioned spaces
8. Behind tubs and showers on exterior walls.
p 2 Coe 9. Common walls between dwelling units. '
71 R C) 10. Attic access openings.
11. Rim joist junction.
4812. Other sources of infiltration.
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2 nn Chimneys,
Nye '��`� Co �a✓�� r Recessed
Attic hatch lights
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eel
e. Ceiling
Rim joist_
Windows corners junctions
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e-e S s = require
Electrical ® Doors sealing::
outlets J
Mm
mn
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v is
Basement t�,
Window
Duct Sill ?� ;
�J I-- A J K M 6 8 0 0 seal a y
Sill plates '
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Typical sources of air leakage
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