Coello & Associates uses exterior rigid foam to insulate our
foundations. Both R-5 (1") and R-10 (2") are
available. Insulation requirements for the foundation are based upon the energy
efficiency of the above grade home.
For above grade
we offer a cement
based UV coating.
These requirements are determined by using
the REScheck program, which can be found at www.energycodes.gov.
The use of exterior wall insulation is superior to the use of only
interior insulation for the following reasons:
Heat loss and thermal
bridging are minimized
Foundation walls are protected from the extremes of
The potential for condensation to form on the walls is
Walls have an additional layer of protection from above and
below grade moisture
Reduced risk of mold problems often associated with the use
of only interior foundation insulation
Does not reduce the size of the interior living space
Thermal mass of the foundation is inside of the house
Homeowner only needs to finish areas of the basement that
will be living space