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PlastiSpan insulation at
a 2” thickness applied over a 2” x 4” stud wall
with R-12 batt insulation provides an R-20 wall assembly. Insulating
sheathing eliminates thermal shorts, reduces air infiltration
and isolates the structure from outdoor temperature changes.
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Be
sure to check the National Building Code of Canada or the applicable
building code in your region regarding minimum insulation, framing
and vapour barrier requirements. |
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PlastiSpan
insulation is used as an insulating sheathing board on the exterior
of wood stud construction. The long edge of the board should
be horizontal and the joints tightly butted together (no wider
than 1 mm). Vertical joints should be made over the studs. Trim
any openings such as windows, doors and electrical outlets. |
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PlastiSpan
insulation must be fastened to framing using fasteners with
heads or washers at least 1/2’’ diameter where the
new cladding will be applied directly against the insulation.
Fasteners with heads or washers at least 1’’ diameter
must be used where an air space will exist between the PlastiSpan
insulation and the cladding (e.g. brick cladding). |
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Install
at least one layer of sheathing membrane over the PlastiSpan
insulation. Use tape to seal lap joints. |
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Where
nails or screws are used to attach cladding materials, such
as vinyl siding, they must penetrate through the PlastiSpan
insulation into the building framing or furring members.. |
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In standard stick frame construction
the wood studs act as thermal bridges through the wall assembly leaving approximately 20% of exterior
walls uninsulated. That’s like throwing away 20% of your
energy money. |
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