RN-2012-00148_0005.tif SG 1�•i
236 PART 4 IN Energy Conservation
r
CHANGE TYPE: Clarification
NI ® ®
Sea ling CHANGE SUMMARY: Attic access openings and rim joist junctions -
t Build have been added to the list of specific locations requiring sealing toy ,
Thermal En velope prevent air infiltration. r
2009 CODE: NI 102.4.1 Building Thermal Envelope. The build`
ing thermal envelope shall be durably sealed to limit infiltration. Then
sealing methods between dissimilar materials shall allow for differeri
tial expansion and contraction. The following shall be caulked, gases
keted, weatherstripped or otherwise sealed with an air barrier matey N
rial, suitable film or solid material.
1. All joints, seams and penetrations. ;
2: Site -built windows, doors, and skylights.,
S.
Openings between window and door assemblies and their re -rY�
spective jambs and framing. $
4�
' 4. Utility penetrations.,
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(` � 5. Dropped ceilings or chases adjacent to the thermal envelo e
6. Knee walls.
e � L e _ 7. Walls and ceiling
U, s separating the garage from conditioned spac s-i
���,w c s s fi
S. Behind tubs and showers on exterior walls. it
2 Coe ' 9. Common walls between dwelling units.^
'4 r 10. Attic access openings. •�_:
11. Rim Joist )unction.
4812. Other sources of infiltration.
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Chimneys��'
�o Mn ccvt r Recessed y
6 t lights {�
Attic hatch
• r y � � � ry Rlm
t
�OISs
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•ate 1 a ? ?.
Ceiling 5,
t Rim joist
Windows y corners unctions 3J
S . require Nom{
P'e S - Electrical Doors sealing u
®:''�• •,� :�
outlets
Basement 4 � ��
window �_.. r �
sill 'cw
Ducta
„ seal
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sill plates
Typical sources of air leakage
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