Specification
Product Data Sheet
FOAMULAR
®
250
Extruded Polystyrene (XPS) Rigid Foam Insulation
Energy-Saving, Moisture
Resistant XPS Insulation
ASTM C 578 Type IV, 25 psi
minimum
Description
Owens Corning
™
FOAMULAR
®
250 extruded polystyrene
(XPS) insulation is a closed cell,
moisture-resistant rigid foam
board well suited to meet the
needs for a wide variety of building
applications. FOAMULAR
®
250 XPS insulation is ideal for
many residential and commercial
construction applications such
as wall furring, perimeter/
foundation, cavity wall, pre-cast
concrete, under slab, crawl spaces,
sheathing and other applications.
3
FOAMULAR
®
250 XPS insulation
is classi ed as a Type IV product
when tested in accordance with
ASTM C 578 and provides a long-
term thermal performance of R-5
per inch.
Like all FOAMULAR
®
XPS insulation products,
FOAMULAR
®
250 XPS
insulation is made with Owens
Corning’s patented Hydrovac
®
process technology under
strict quality control measures,
which makes it highly resistant
to moisture and permits the
product to retain it’s high
R-value year after year even
after exposure to moisture and
freeze/thaw cycling.
Key Features
• Excellent long-term stable
insulating performance at R-5
1
per inch
• Exceptional moisture
resistance, long-term durability
• Limited lifetime warranty
2
—
maintains 90% of R-value
and covers all ASTM C 578
properties
• The only XPS foam to be
GREENGUARD Children
& Schools Certi ed
SM
• The only XPS foam with
certi ed recycled content—
certi ed by Scienti c
Certi cation Systems (SCS)
to contain a minimum 20%
recycled content
• Will not corrode, rot or
support mold growth
• Zero ozone depletion potential
with 70% less global warming
potential than our previous
formula
• Reusable
• Lightweight, durable rigid
foam panels are easy to handle
and install
• Easy to saw, cut or score
• Versatile applications: sheathing,
foundation walls, masonry
cavity walls
3
• Not for use in roo ng. For
roo ng applications, use
FOAMULAR
®
THERMAPINK
®
Extruded Polystyrene
Insulation.
Product type
• Minimum compressive strength
of 25 psi
• Wide selection of sizes and
thicknesses
• Available in straight, tongue and
groove, or scored square edge
• Compliant with building codes
and standards
Product Applications
High-performance FOAMULAR
®
250 XPS insulation:
• Retards the transmission of
water vapor and moisture in
masonry walls
• Provides continuous insulation
over steel stud framing, in
insulated concrete sandwich
panel walls, in masonry unit
cavity walls, or when used
with non-penetrating, surface
mounted furring systems over
masonry or concrete walls
• Insulates and retains its
properties in below grade
perimeter and foundation
applications, or directly
beneath the concrete slab to
complement the insulating
sheathing envelope around the
building framing
• FOAMULAR
®
250 XPS
insulation is ideal for below
grade applications. Extruded
polystyrene (XPS) insulation is
resistant to degradation from
the components of common
soils and will retain its insulating
performance characteristics
even after prolonged exposure
to moisture