RN-2011-00460_0005.tif 236 PART 4 M Energy Conservation tNF
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CHANGE TYKE: Clarification
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CHANG Sl1MMARY: Attic access openings and rim joist junctions f
Sealing Building of the have been added to the list of specific locations requiring sealing to�,'��
The v prevent air infiltration.
2009 C E: N11 02.4.1 Buildinq Thermal Envelope. Thebuild i`
ing thermal envelope shall be durably sealed to limit infiltration The
sealing methods between dissimilar materials shall allow for differen a
tial expansion and contraction. The following shall be caulked, gas 3,
keted, weatherstripped or otherwise sealed with an air barrier mate
rial, 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
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spective jambs and framing.
4. Utility penetrations.
Cie ec 5. Dropped ceilings or chases adjacent to the thermal envelope
6. Knee walls. 4
K S .
u� �� w $ Se z L e� 7. Walls and ceilings separating the garage from conditioned space's
8. Behind tubs and showers on exterior walls.
o d � • ,
re � 9. Common walls between dwelling units.*
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C 10. Attic access openings.
11. Rim joist junction.
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4812. Other sources of infiltration.
Chimneys
' e R d, Co nAr lUl y
> U 1 Recessed
Attic hatch ",^ lights
3
Ceiling Rim joist
Windows corners junctions x$ a
S S require
Doors sealing
Electrical
outlets
Basement r
window r
Duct
Sill�d� I TS
6 F 0 0 g seal a 3
Sill plates
'typical sources of air leakage � ,