Technical Bulletin
Foamular®
Extruded Polystyrene Insulation
Masonry Cavity Wall Insulation
Guide Specification
February 2008
SECTION 072100 - THERMAL INSULATION
PART 1 - GENERAL
1.1
A.
1.2
RELATED DOCUMENTS
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
SUMMARY
A.
This Section includes the following:
1.
Cavity-wall insulation.
B.
Related Sections include the following:
1.
1.3
Division 04 Section "Unit Masonry" for insulation installed in cavity walls and
masonry cells.
DEFINITIONS
A.
Extruded Polystyrene Insulation (XPS): Insulation formed from polystyrene resin pellets
fed into an extruder where they are melted into a viscous fluid and mixed with critical
additives including an injected blowing agent gas to make the mixture foamable. Under
carefully controlled temperature and pressure conditions, the foamable
polystyrene/admixture mass is forced through a die where it is foamed, expanded and
shaped in a continuous process, soon cooling and then trimmed to form a rigid
homogeneous, closed cell structure, board insulation.
B.
ICC-ES: International Code Council Evaluation Service
1.4
SUBMITTALS
A.
Product Data Sheets: For each product indicated.
B.
Samples for Verification: Provide [hand sample, full size] units for each type of
insulation indicated.
2
C.
LEED Submittal:
1.
D.
1.5
Product Data for Credit MR 4.1 [and MR 4.2]: For products having recycled
content provide independent third party certification documentation indicating
percentages by weight of preconsumer recycled content.
a.
Include statement indicating cost of each product having recycled content.
b.
Include material production location, city and state.
ICC-ES Evaluation Reports: For extruded polystyrene foam plastic insulation.
QUALITY ASSURANCE
A.
Source Limitations: Obtain building insulation through one source from a single
manufacturer.
B.
Fire-Test-Response Characteristics: Provide insulation possessing the surface burning
characteristics indicated, determined by testing identical products in accordance with test
method ASTM E 84.
C.
Thermal Resistance: Shall be 5 year aged R-value determined by testing in accordance
with test method ASTM C 518.
D.
Testing and Labeling: Shall be by Underwriters Laboratories or another testing and
labeling agency acceptable to authorities having jurisdiction. All insulation shall be
identified with appropriate markings of applicable testing and inspecting agency.
1.6
DELIVERY, STORAGE, AND HANDLING
A.
Protect insulation materials from physical damage and from deterioration by soiling, and
other sources. Store inside and in a dry location, or, wipe surface dry the extruded
polystyrene insulation before installing. Comply with manufacturer's written instructions
for handling, storing, and protecting during installation.
B.
Protect foam plastic insulation as follows:
1.
2.
3.
4.
Do not expose to sunlight, except to extent necessary for period of installation and
concealment.
Protect against ignition at all times. Do not deliver plastic insulating materials to
Project site before installation time.
Complete installation and concealment of plastic materials as rapidly as possible in
each area of construction.
When installing black/dark (non-white) tapes and/or waterproofing/air barrier
membranes over extruded polystyrene insulation, avoid prolonged sun exposure of
such surfaces. Provide daily final finish covering or temporary white opaque
covering over black/dark (non-white) surfaces to avoid possible solar heat damage.
3
PART 2 - PRODUCTS
2.1
A.
MANUFACTURERS
In Part 2 articles where titles below introduce lists, the following requirements apply to
product selection:
1.
2.
2.2
A.
Available Products: Subject to compliance with requirements, provide one of the
products specified.
Manufacturers: Subject to compliance with requirements, provide products by one
of the manufacturers specified.
FOAM PLASTIC BOARD INSULATION
Extruded Polystyrene Board Insulation:
1.
Manufacturer: Owens Corning.
Product compliant with ASTM C 578 type and minimum density indicated below:
a.
CW15, Type X, 1.30 lb/cu. ft. (21 kg/cu. m).
b.
CW25, Type IV, 1.60 lb/cu. ft. (26 kg/cu. m)
c.
Foamular 150, Type X, 1.30 lb/cu. ft. (21 kg/cu. m).
d.
Foamular 250, Type IV, 1.60 lb/cu. ft. (26 kg/cu. m)
e.
High-R CW Plus, Type IV, 1.60 lb/cu. ft. (26 kg/cu. m)
2.
Thermal resistance (5 year aged minimum):
R-values (hr x ft2 x oF/ Btu) 5.4 and 5.0 per inch of thickness.
Measured at 40°F and 75°F mean temperature respectively in accordance with test
method ASTM C 518.
a.
CW15, Type X
b.
CW25, Type IV
c.
Foamular 150, Type X
d.
Foamular 250, Type IV
3.
Thermal resistance (5 year aged minimum):
R-values (hr x ft2 x oF/ Btu) of 10.0 and 12.0 for 1 3/4” and 2 1/8” thick respectively.
Measured at 75°F mean temperature in accordance with test method ASTM C 518.
a.
High-R CW Plus, Type IV
4.
Surface Burning Characteristics: Maximum flame spread and smoke developed
indexes of 75 and 450 respectively, tested in accordance with test method ASTM E
84.
5.
Recycled Content: Provide extruded polystyrene insulation with preconsumer
recycled content not less than 15% percent.
4
PART 3 - EXECUTION
3.1
A.
EXAMINATION
Examine substrates and conditions, with Installer present, for compliance with
requirements of Sections in which substrates and related work are specified and for other
conditions affecting performance.
1.
3.2
A.
3.3
Proceed with installation only after unsatisfactory conditions have been corrected.
PREPARATION
Clean substrates of substances harmful to insulation or vapor retarders, including
removing projections capable of puncturing vapor retarders or of interfering with
insulation attachment.
INSTALLATION, GENERAL
A.
Comply with insulation manufacturer's written instructions applicable to products and
application indicated.
B.
Install insulation that is undamaged, dry, and unsoiled.
C.
Extend insulation in thickness indicated to envelop entire area to be insulated. Cut and fit
tightly around obstructions and fill voids with insulation. Remove projections that
interfere with placement.
D.
Apply single layer of insulation boards to produce thickness indicated unless multiple
layers are otherwise shown or required to make up total thickness.
3.4
INSTALLATION OF CAVITY-WALL INSULATION
A.
Place pads of construction adhesive spaced approximately 24 inches (610 mm) o.c. both
ways on inside face of insulation board, or as recommended by the adhesive
manufacturer. Construction adhesive must be recommended by it’s manufacturer for use
with polystyrene rigid board insulation. Fit courses of insulation between wall ties and
other obstructions, with edges butted tightly in both directions. Press units firmly against
inside substrates indicated.
B.
[Optional Installation Instructions, retain as needed:]
1.
2.
Gob Method: Apply 4 gobs of adhesive per unit and set units firmly against
inside wythe of masonry or other construction as shown. Apply gobs at each
corner; spread gobs to form pads 4 inches (101 mm) in diameter by 1/4 inch
(6 mm) thick.
Serrated-Trowel Method: Apply adhesive to entire surface of each insulation
unit with serrated trowel complying with insulation manufacturer's written
instructions.
5
3.
4.
Seal joints between foam plastic insulation units by applying adhesive,
mastic, or sealant to edges of each unit to form a tight seal as units are
shoved into place. Fill voids in completed installation with adhesive, mastic,
or sealant as recommended by insulation manufacturer.
Supplement adhesive attachment of insulation by securing boards with twopiece wall ties designed for this purpose and specified in Division 04 Section
"Unit Masonry."
END OF SECTION 072100
®
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ONE OWENS CORNING PARKWAY
TOLEDO, OHIO 43659
1-800-GET-PINK
www.owenscorning.com
FOAMULARTM is a registered trademark of Owens Corning.
The color PINK is a registered trademark of Owens Corning.
February, 2008
Copyright © 2008 Owens Corning