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The roof is the area of highest
heat loss in buildings. In order to conserve energy and to
make buildings more comfortable, building codes stipulate
higher thermal resistance (R-Values) for the roof area compared
to other building components.
On traditional cathedral ceilings
where tongue and groove timber exposed on the inside is used
as an architectural feature, PlastiSpan insulation board is
ideal for both single and double layered applications. Newer
construction methods for cathedral ceilings using sheathing
and rafters finished on the interior with gypsum board may
not always allow space for sufficient insulation. This type
of roof construction can be insulated above the roof sheathing
using PlastiSpan insulation to provide virtually any required
thermal resistance while still allowing for the normal choices
of exterior roof finishes.
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To view the design manual document on Cathedral Ceilings, Click Here
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