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Exterior Insulation Finish System (EIFS)
is an exterior cladding and thermal
insulation system that utilizes the
superior thermal resistance
properties of polystyrene foam
boards. The insulation foam board is
installed on an approved substrate
adhesively and/or mechanically. A
reinforcing fiber mesh is embedded
in a specially formulated base coat
and applied to the face of the
insulation board, thereby providing
impact resistance strength and
durability to the. The system is
finally covered with a finish coat,
rendering it undistinguishable in
appearance from other facades and
cladding systems.
EIFS’s superior thermal insulation
derive from two properties: one is
that EIFS is unique among thermal
insulation system in that it is the
only one that completely envelopes
the exterior of a building, thereby
eliminating any thermal bridges
through which heat can enter or
escape the building; the other is
that EIFS utilizes the superior
thermal resistance properties of
polystyrene, achieving values of up
to R4 per inch of foam board
thickness.
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