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about any of our products? You can post them in our forums CLICK
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Pella Roofing & Insulation is eastern Iowa's leading
Polyurethane Foam Specialists. With over 1.5 million board feet
of sprayed foam under our belts. You can feel safe knowing we
have the nessasary tools and experience to do the job right.
Professionally applied application of spray in place polyrethane
foam insulation requires special training, knowlege and equipment.
Using our trained and skilled applicators will assure a thorough
installation so that foam fills and seals all the nooks and crannies
that lead to energy loss.
The solid seal vapor barrier and excellent insulating properties
makes polyurethane foam the ideal residential, commercial and
agricultural iInsulation.
Air Infiltration vs. R-value
Although R-value (R meaning the resistance to heat flow), is important,
government studies estimate that as much as 40% of a building's
energy loss is due to "Air Infiltration". Simply put,
wind blowing through various wall and ceiling penetrations (including
the nails that hold siding to a house) is the real cause of skyrocketing
heating and cooling bills. Failure to stop the air flow into your
home means that "new" air needs heating and cooling.
Polyurethane Foam insulation solves this problem by creating a
solid seal when applied to walls and ceilings. Polyurethane Foam
expands to seal cracks and holes around doors, windows and penetrations
such as electrical and plumbing fixtures. This solid seal not
only stops air infiltration but serves to control moisture condensation
within cavities of a stud wall.
High Insulation Value
R-values, also play a major role when trying to insulate your
house from outside temperatures. Polyurethane foam insulation
has the highest R-value per thickness of any readily available
insulation material used in residential construction. This high
R-value means that 2" x 4" wall can actually outperform
2" x 6" wall. Using 3"of Polyurethane Foam will
achieve a R-value of 20.85. This can be compared to 5" of
fiberglass insulation which would only have a R-value of 18 in
a 2" x 6" wall.
Not only does Polyurethane Foam have the highest R-value, it
also stays where it is applied. Unlike fiberglass and blown in
cellulose insulation, Polyurethane Foam is a solid product and
will not sag or settle and cannot be pushed away from studs. Since
it is solid, it does not offer a nesting habitat for animals and
insects as fibered insulations do.
Wall Strength
Along with stopping air infiltration and having high R-values,
Polyurethane foam also adds to the buildings structural strength.
Tests conducted at the NAHB Research Center reported that Polyurethane
Foam with T 1-11 siding and studs at 16" on center had greater
racking strength than conventional T 1-11 siding panels with stud
at 16" on center. They went on to say that housing built
with foam filled wall cavities (3" minimum thickness) would
likely not require conventionally braced construction.
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Questions about any of our products? You can post them in our
forums
CLICK HERE
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