|
PlastiSpan® insulation board provides outstanding resistance
to moisture and dependable long-term thermal performance when
installed on the exterior face of the foundation wall. Insulating
the exterior surface of the foundation wall provides the advantage
of a fully insulated warm wall, which reduces the likelihood
of damage due to freeze thaw and condensation forming on the
inner face of the wall.
In colder climates where frost may penetrate
to significant depths a Frost Protected Shallow Foundation
(FPSF) design may provide significant economic advantages.
The use of an FPSF design is a practical alternative to Building
Code provisions that require foundations to be placed below
the expected depth of frost penetration. FPSF designs using
PlastiSpan insulation can be used for either heated or unheated
structures where a footing is to be placed above the frost
line.
When the garage is considered the unheated portion of structure.
FPSF design procedures may also be used for heated structures, such as houses or an attached garage where the temperature within the structure is maintained above freezing at all times. For this type of FPSF design, vertical insulation is applied to the foundation wall as well as horizontal perimeter insulation around the exterior of the foundation wall. This option does not require insulation under the concrete slab, with the intent that frost would not be permitted to penetrate through the foundation wall into the building enclosure or beneath the footing. The minimum thermal resistance of the vertical insulation must be equal to that of the horizontal insulation.
 |
To view the design manual document on Frost Protected Foundatons, click here.
|
|
