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Installation Guide: |
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Residential Applications - Wood Framing |
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| Typical Ceiling Application |
| Product |
| Foil
Double Bubble Poly |
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| Average
R-Values |
Heat Flow Up: R-42*
Heat Flow Down: R-47.5* |
* System R-value is
for one enclosed air space. Additional R-4.5
added for a still air film for heat flow
down and R-1.3 for heat flow up.
Note: This system without
the Flexfoil, utilizes 10" of mass
insulation and has an R-Value rating of
38. |
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| Instructions |
- Measure working area where
Flexfoil will be applied.
- Fasten the Flexfoil to
the bottom of the joist facing using 1/2” staples
every 4” -
6”.
- The white polyethylene side
of the Flexfoil should be facing the mass insulation.
- Ensure
that all seams are securely taped using Flexfoil
reflective tape.
- Apply 1 x 3 strapping (at 16” centre)
to the Flexfoil, running the length of the ceiling.
- Fasten
the interior finish to the strapping using approved
construction methods.
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