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2. PRE-ENGINEERED STEEL APPLICATIONS
NOTE: When installing any type of
insulation in a building, never alter the
ventilation design.
2.1 Roof Application Method A
This application is suitable for Z or C pur-
lins.
1. Measure working area where
Reective Air will be applied.
2. Drape the Reective Air across the top
of the purlins allowing enough material
to sag so that a 3/4” to 1 1/2” airspace is achieved.
3. If the Reective Air is run across the purlins, ensure that all seams are securely taped using
reective tape.
4. Apply the steel roof deck using approved methods of installation.
2.2 Roof Application Method B
This application is suitable for Z or
C purlins.
1. Measure working area where
Reective Air will be applied.
2. Drape the Reective Air across the top
of the purlins allowing enough material
to sag so that a 3/4” to 1 1/2” airspace
is achieved.
3. Apply the Reective Air to the bottom
facing of the purlins, ensuring it is pulled tight.
4. If the Reective Air is run across the purlins, ensure that all seams are securely taped using
reective tape.
5. Apply the steel roof deck using approved methods of installation.
TAPE SEAMS IF REFLECTIVE AIR
RUNS ACROSS PURLINS
ROOF DECK
C PURLIN
Z PURLIN
3/4” TO 1-1/2” AIR SPACE
CREATED BY SAG
TAPE SEAMS IF Reflective Air
RUNS ACROSS PURLINS
ROOF DECK
C PURLIN
Z PURLIN
3/4” TO 1-1/2” AIR SPACE
CREATED BY SAG
Reective Air
Reective Air
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