RN-2012-00077_0003.tif 236 PART 4 0 Energy Conservation'
On CHANGE TYPE: Clarification Y '+ r
NVIVA
CHANGE SUMMARY: Attic access openings and rim joist junctions;
S eal i ng Buildi o f the
have been added to the list of specific locations requiring sealing to.:_,
Thermal Envelop prevent air infiltration.�� _
2009 CODE: N1102.4.1 Building Thermal Envelope. The builcly�;
ing thermal envelope shall be durably sealed to limit infiltration. The
sealing methods between dissimilar materials shall allow for differen Y
tial expansion and contraction. The following shall be caulked, ga
keted, weatherstripped or otherwise sealed with an air barrier mate
. rte '
nal, suitable film or solid material.
1. All joints, seams and penetrations.
Al, j
2.. Site -built windows, doors, and skylights.,
3. Openings between window and door assemblies aiid their re-
spective jambs and framing. ¢
4. Utility penetrations..
P
i f (� 5. Dropped ceilings or chases adjacent to the thermal envelo e; R.
c e i r Y 6. Knee walls.
w S Se , t L e,60 7. Walls and ceilings separating the garage from conditioned spaces
U
8. Behind tubs and showers on exterior walls.
S e 12 Code. " 9. Common walls between dwelling units.
G 6 g 71 R C ) 10. Attic access openings. A,
• 11. Rim oist iron. • -�
4012. Other sources of infiltration. F
Chimneys = =F.
cQ,
Recessed
lights
Attic hatch ; 09;1 1 �
i, Ceiling a
Rim joist
Windows corners junctions:
µ, require PRR i 3
S dd Q., S ' sealing
Gt e S Electrical ® Doors
outlets
Basement
window
Sill'
> • Duct j
.seal a•,: ;::3
�-A1R NE 6 Y
Sill plates
Ci'�}.1!�LS:Y= °.':E'ni::a��'cx_ `4�Ci -1
Typical sources of air leakage
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