Use and Care Guide

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*
R means resistance to heat flow. The higher the R-value, the greater the insulating power.
Based on a heated basement with 1' exposed foundation. Source: www.inspectapedia.com
**Source: www.eere.energy.gov
2
Sealing the gap between the foundation wall
and the sill plate with STYROFOAM™ Brand
Sill Seal Foam Gasket reduces air infiltration
and moisture wicking from the concrete
foundation into the wood sill plate.
Reduce Energy Loss
Concrete is a highly heat-conductive material.
In an uninsulated or poorly insulated basement,
heat escapes through two paths:
• Horizontally through the wall into the earth
below grade
• Vertically through the concrete wall and into
the air above the grade line
Insulating the exterior or interior of the
foundation wall slows both vertical and
horizontal heat flow through the wall, helping to
mitigate conditions that cause energy loss.
Insulating basement walls with R-10
insulation from siding to footing
can reduce basement heat loss by
approximately 70 percent.*
Insulating with rigid foam
(exterior insulation shown
here) slows heat loss from
both directions.
In an uninsulated concrete
wall, heat flows horizontally
and vertically.
The typical U.S. family spends about $1,900 a year on home utility bills.**
Alone, concrete offers very little resistance to heat flow.
For example, a 7
"
thick slab of poured concrete has the
same R-value as a pane of glass (R-1.5).
R-1.5
R-1.5