RN-2011-00134_0005 (2).tif 236 PART 4 0 Energy Conservation
FILE COPY
CHANGE TYPE: Clarification
Sea�lu Of t he Building CHANGE SUMMARY: Attic access openings and rim joist junctions
g have been added to the list of specific locations requiring sealing to
T hermal Envelo prevent air infiltration. '
5¢� a
2009 CODE: N1102.4.1 Building Thermal Envelope. The build
ing thermal envelope shall be durably sealed to limit infiltration.The
sealing methods between dissimilar materials shall allow for differen'
tial expansion and contraction. The following shall be caulked, gas
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. j
3. Openings between window and door assemblies and their re
spective jambs and framing.
4. Utility penetrations.
tt C f 5. Dropped ceilings or chases adjacent to the thermal envelope
6. Knee walls.
VI �� wq j $ se L e-60- 7. Walls and ceilings separating the garage from conditioned spaces
J
8. Behind tubs and showers on exterior walls..
e C o 9. Common walls between dwelling units.
a G 6 - 1 R C 10. Attic access openings. Y
11. Rim joist junction.
3812 Other sources of infiltration. `' y
Chimneys
Nfi A wR Co An a.VI = Recessed
lights
- r Attic hatch
Run
r foist'+
I
c "M• Yi.
.� f Ceiling Rim joist Ai:
,
o ` indows` i corners
junctions
, ,
j
S I Q,e S s : require
Electrical ® Doors sealing
outlets 3
Basement
window_ -
r� =
L�
L J K N� 6 2
Duct
Sill
seal
I
Sill plates
,.a
�_ Typical sources of air leakage