NORTHWEST MASONRY INSTITUTE
NATIONAL MASONRY SYSTEMS GUIDE
NORTHWEST EDITION – 01.14.2016
07 21 00
THERMAL INSULATION
PAGE 1 OF 9
SECTION 07 21 00 - THERMAL INSULATION
PART 1 - GENERAL
1.1
SECTION INCLUDES
A.
Foam Board Insulation.
B.
Fiber Board Insulation.
C.
Fiber Batt Insulation.
D.
Mineral Fiber Batt Insulation.
E.
Spray Polyurethane Foam Insulation.
1.2
RELATED REQUIREMENTS
A.
04 26 16 - Adhered Masonry Veneer: for masonry adhered to substrate.
B.
07 25 26 - Air and Water Resistant Barriers: for components of masonry systems.
C.
07 62 00 - Sheet Metal Flashing and Trim: for sheet metal components of masonry
systems.
D.
07 92 00 - Joint Sealers.
E.
09 96 53 - Elastomeric Coatings: used over unit masonry systems.
1.3
A.
ADMINISTRATIVE REQUIREMENTS
Preinstallation Meeting: Convene one week before starting work of this section in
accordance with Section 01 30 00 - Administrative Requirements.
1.
1.4
Review preparation and installation procedures and coordinating and scheduling
required with related work.
SUBMITTALS
A.
Product Data: Provide data on product characteristics, performance criteria, and
product limitations.
B.
Test Report: Submit report of full-size mock-up test for NFPA 285 fire performance,
with project cladding assemblies highlighted, for foam insulation on exterior.
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07 21 00
THERMAL INSULATION
PAGE 2 OF 9
C.
Research/Evaluation Reports: Provide ICC-ES report for foam-plastic insulation.
D.
Shop Drawings: Indicate required flashings, control joints, and expansion joints, and
sealing details at openings, projections, penetrations, and sleeves to maintain
continuous thermal barrier.
E.
LEED Submittals: For components of this section submit the following in compliance
with Section 01 35 15 - LEED Certification Procedures.
1.
MR 3: Materials Reuse; documentation showing materials reused.
2.
MR 4: Product data for products having recycled content.
3.
MR 5: Product certificates for products and materials complying with regional
material requirements.
F.
Certificate: Certify that products meet or exceed specified requirements.
G.
Manufacturer's Installation Instructions: Indicate special preparation of substrate,
installation and attachment methods, and perimeter conditions requiring special
attention.
1.
Include recommended fastening components and spacing to control sag.
2.
Include manufacturer's recommended product for thermal barrier over foam
insulation exposed to interior in accordance with IBC 2012.2603.4.
a.
3.
For exterior foam insulation include details required to comply with acceptance
criteria of manufacturer's NFPA 285 test in accordance with IBC 2012.2603.5.5.
a.
H.
1.5
A.
"...tested in accordance with and meets the acceptance criteria of both the
Temperature Transmission Fire Test and the Integrity Fire Test of NFPA
275."
"The exterior wall assembly shall be tested in accordance with and comply
with the acceptance criteria of NFPA 285."
Maintenance Data: For users operation and maintenance of system including:
1.
Methods for maintaining system's materials and finishes.
2.
Precautions about cleaning materials and methods that could be detrimental to
components, finishes, and performance.
QUALITY ASSURANCE
Installer Qualifications: Company specializing in performing the work of this section
with minimum 5 years experience.
1.
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NATIONAL MASONRY SYSTEMS GUIDE
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1.6
A.
MOCK-UP
Enclosure Visual Mock-up:
1.
B.
1.7
Construct and participate in Enclosure Visual Mock-up specified in Section
_____________.
Enclosure Performance Mock-up:
1.
C.
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THERMAL INSULATION
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Construct and participate in Enclosure Performance Mock-up and testing
specified in Section _____________.
Construct mock-up of ____ sq ft (____ sq m) of horizontal insulation exposed in
unconditioned space, representing finished work including internal and external
corners.
1.
Locate where convenient.
2.
Mockup may remain as part of the Work.
DELIVERY, STORAGE, AND HANDLING
A.
As required by the manufacturer for a warrantable installation of the installed products
to meet the Performance and Design Criteria.
B.
Deliver, store, and handle material to avoid exposure to sunlight and contact with
flammable materials.
C.
Store moisture sensitive materials in dry, weathertight enclosures.
PART 2 - PRODUCTS
2.1
A.
2.2
A.
DESCRIPTION
Foam board, fiber board, batt and low expansion detailing foam thermal insulation.
PERFORMANCE AND DESIGN CRITERIA
Surface-Burning Characteristics: As determined by testing identical products according
to ASTM E 84 by a qualified testing agency. Identify products with appropriate
markings of applicable testing agency.
1.
B.
IBC 2012.2603.4.
Assembly Fire Propagation Characteristics: Provide results of test performed on wall
assemblies tested by manufacturer in accordance with NFPA 285.
NORTHWEST MASONRY INSTITUTE
NATIONAL MASONRY SYSTEMS GUIDE
NORTHWEST EDITION – 01.14.2016
1.
2.3
A.
IBC 2012.2603.5.5
MATERIALS
Foam Board Insulation:
1.
Extruded Polystyrene Board Insulation: ASTM C 578, Type IV, 25 psi.
a.
Performance Criteria:
1)
2)
3)
4)
5)
6)
7)
8)
9)
b.
2.
Flame Spread Index: 75 or less, when tested in accordance with
ASTM E84.
Smoke Developed Index: 450 or less, when tested in accordance with
ASTM E84.
Complies with fire-resistance requirements as part of an exterior
non-load-bearing exterior wall assembly when tested in accordance
with NFPA 285 in cladding systems matching project.
Water Absorption: 4 percent by volume, maximum, when tested In
accordance with ASTM D2842.
Water Vapor Transmission: 1.5 perms when tested in accordance
with ASTM E96 based on 1 inch thickness.
Board Density: 1.3 lb/cu ft.
Compressive Resistance: 15 psi.
Thermal Conductivity (k factor) at 25 degrees F: 0.28.
Thermal Resistance (R Value) at 40 degrees F/inch of thickness: 5.
Features:
1)
2)
3)
Board Size: As indicated on drawings.
Board Thickness: As indicated on drawings.
Board Edges: Square.
Polyisocyanurate Board Insulation: Rigid cellular foam, complying with ASTM
C1289. Type I, Class 1 or Class 2:
a.
Performance Criteria:
1)
2)
3)
4)
5)
6)
7)
8)
9)
B.
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THERMAL INSULATION
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Flame Spread Index: 75 or less, when tested in accordance with
ASTM E84.
Smoke Developed Index: 450 or less, when tested in accordance with
ASTM E84.
Complies with fire-resistance requirements as part of an exterior
non-load-bearing exterior wall assembly when tested in accordance
with NFPA 285 in cladding systems matching project.
Water Absorption: <1 percent by volume, maximum, when tested In
accordance with ASTM C209
Water Vapor Transmission: <0.3 perms when tested in accordance
with ASTM E96 based on 1 inch thickness.
Board Density: 2 lb/cu ft.
Compressive Resistance: 25 psi.
Thermal Conductivity (k factor) at 25 degrees F:
Thermal Resistance (R Value) at 40 degrees F/inch of thickness: 5.6.
Fiber Board Insulation:
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1.
Mineral Fiber Board Insulation: Semi-rigid mineral fiber, ASTM C612.
a.
Performance Criteria:
1)
2)
3)
4)
5)
6)
7)
8)
9)
b.
Flame Spread Index: 25 or less, when tested with facing, if any, in
accordance with ASTM E84.
Smoke Developed Index: 450 or less, when tested in accordance with
ASTM E84.
Rated Non-combustible per NFPA standard 220 in accordance with
ASTM E136.
Water Absorption: 0.03 percent by volume, maximum, when tested In
accordance with ASTM C1104.
Water Vapor Transmission: 50 perms when tested in accordance with
ASTM E96 based on 1 inch thickness.
Board Density: 4.5 lb/cu ft.
Compressive Resistance: 25 psi.
Thermal Conductivity (k factor) at 25 degrees F:
Thermal Resistance (R Value) at 40 degrees F/inch of thickness: 4.2.
Features:
1)
2)
C.
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Board Thickness: As indicated on drawings.
Board Edges: Square.
Fiber Batt Insulation:
1.
Glass Fiber Batt Insulation: Flexible preformed batt or blanket, complying with
ASTM C665; friction fit.
a.
Performance Criteria - Unfaced, Type I:
1)
2)
3)
4)
5)
6)
7)
8)
9)
b.
Performance Criteria - Kraft-Faced, Type 2:
1)
2)
3)
2.
Combustibility: Non-combustible, when tested in accordance with
ASTM E136.
Flame Spread Index: 25 or less, when tested with facing, if any, in
accordance with ASTM E84.
Smoke Developed Index: 450 or less, when tested in accordance with
ASTM E84.
Water Absorption: 0.03 percent by volume, maximum, when tested In
accordance with ASTM C1104.
Water Vapor Transmission: 50 perms when tested in accordance with
ASTM E96 based on 1 inch thickness.
Board Density: 4.5 lb/cu ft.
Compressive Resistance: 25 psi.
Thermal Conductivity (k factor) at 25 degrees F:
Thermal Resistance (R Value) at 40 degrees F/inch of thickness: ___.
Non-reflective faced.
Class C: faced surface not rated for flame propagation.
Category 1: Vapor barrier membrane.
Mineral Fiber Batt Insulation: Flexible preformed batt or blanket, complying with
ASTM C665; friction fit.
a.
Performance Criteria:
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1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
D.
Performance Criteria:
a.
b.
c.
d.
Flame Spread Index: 25 or less, when tested with facing, if any, in
accordance with ASTM E84.
Smoke Developed Index: 450 or less, when tested in accordance with ASTM
E84.
Core Density: 1.9-2.4 pcf when tested in accordance with ASTM D 1622.
Thermal Resistance (aged): when tested in accordance with ASTM C 518 at
75 degrees F, (h-ft2- degrees F)/Btu.
1)
2)
e.
f.
g.
h.
i.
A.
Facing: None, unfaced.
Combustibility: Non-combustible, when tested in accordance with
ASTM E136.
Flame Spread Index: 25 or less, when tested with facing, if any, in
accordance with ASTM E84.
Smoke Developed Index: 450 or less, when tested in accordance with
ASTM E84.
Water Absorption: 0.03 percent by volume, maximum, when tested In
accordance with ASTM C1104.
Water Vapor Transmission: 50 perms when tested in accordance with
ASTM E96 based on 1 inch thickness.
Board Density: ___ lb/cu ft.
Compressive Resistance: ___ psi.
Thermal Conductivity (k factor) at 25 degrees F:
1Thermal Resistance (R Value) at 40 degrees F/inch of thickness: ___.
Spray Polyurethane Foam Insulation: HCFC-based, close-cell, complying with ASTM
C1029.
1.
2.4
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THERMAL INSULATION
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Thickness less than or equal to 2-1/2 inches: 5.8 per inch of
thickness.
Thickness greater than 2-1/2 inches: 6.4 per inch of thickness.
Thermal Resistance (initial): 6.4 per inch of thickness when tested in
accordance with ASTM C 518 at 75 degrees F, (h-ft2- degrees F)/Btu.
Closed Cell Content: 88-95 percent when tested in accordance with ASTM
D 2842.
Water Absorption: Less than 2 percent by volume when tested in
accordance with ASTM D 2842.
Water Vapor Transmission: <1 perm at 2 inch thickness when tested in
accordance with ASTM E 96.
Compressive Strength: Greater than 25 psi when tested in accordance with
ASTM D 1621.
VAPOR RETARDERS
Sheet Retarder: Polyamide film vapor retarder, unfaced, vapor permeable glass fiber
and mineral wool insulation complying with ASTM E86.
1.
Water Vapor Permeance:
a.
b.
Dry cup method: 1.0 perms.
Wet cup method: 10 perms.
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B.
2.5
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THERMAL INSULATION
PAGE 7 OF 9
2.
Flame Spread Index: 20 or less, when tested with facing, if any, in accordance
with ASTM E84.
3.
Smoke Developed Index: 450 or less, when tested in accordance with ASTM E84.
PVA Paint: Transmission rate not exceeding 1 perm in accordance with ASTM E96.
ACCESSORIES
A.
All accessory materials required by the manufacturer for a warrantable installation of
the installed products in a manner that meets the Performance and Design Criteria.
B.
Insulation Fasteners: Impaling clip of unfinished steel with washer retainer and clips, to
be adhered to surface to receive insulation, length to suit insulation thickness and
substrate, capable of securely and rigidly fastening insulation in place.
C.
Anchor Adhesive: Bond insulation anchors securely without damage to insulation,
fasteners and substrates.
D.
Masonry ties with integrated insulation retainer clip.
PART 3 - EXECUTION
3.1
EXAMINATION
A.
Verify existing conditions meet the manufacturer's requirements before starting work.
B.
Clean substrates of substances that are harmful to insulation, including removing
projections capable of puncturing vapor retarders, or that interfere with insulation
attachment.
C.
Verify that substrate, adjacent materials, and insulation materials are dry and
substrates are ready to receive insulation and adhesive.
D.
Verify substrate surfaces are flat, free of honeycomb, fins, irregularities, or materials,
or substances that may impede adhesive bond.
3.2
A.
3.3
A.
PREPARATION
Prepare surfaces to receive work in accordance with manufacturer's instructions.
INSTALLATION
General: Install all materials in accordance with manufacturer's instructions based on
conditions present.
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B.
C.
D.
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THERMAL INSULATION
PAGE 8 OF 9
1.
Install insulation in thicknesses indicated and provide thermal continuity at
entire building enclosure.
2.
Cut and fit tightly around obstructions and fill voids with insulation. Remove
projections that interfere with placement.
Cavity-wall Insulation:
1.
Install with method detailed.
2.
Fit courses of board insulation between wall ties and other obstructions, with
edges butted tightly in both directions. Press units firmly against inside
substrates.
3.
Fasten insulation anchors to substrates. Space anchors according to insulation
manufacturer's written instructions for insulation type, thickness, and application
indicated.
4.
Install board insulation by pressing insulation into position over spindles and
securing it tightly in place with insulation-retaining washers.
Framing cavity insulation:
1.
Use insulation widths and lengths that fill cavities formed by framing members.
If more than one length is required to fill the cavities, provide lengths that will
produce a snug fit between ends.
2.
Provide a friction fit between edges of insulation and adjoining framing
members.
3.
Maintain 3-inch clearance of insulation around recessed lighting fixtures not
rated for contact with insulation.
4.
For framed wall cavities where height exceed 96 inches, support unfaced
blankets mechanically and support faced blankets by taping flanges of insulation
to flanges of studs.
5.
Where installing batt faced with vapor retarder material, install with vapor
retarder facing the warm side of the assembly in winter. Lap onto interior face of
framing and seal to adjacent vapor retarder lap. Seal vapor retarder to sill and
head framing and all penetrations with tape or acoustical adhesive.
Spray Foam Insulation
1.
Do not apply insulation until installation of pipes, ducts, conduits, wiring, and
electrical outlets in walls is completed and windows, electrical boxes, and other
items not indicated to receive insulation are masked.
2.
Install in maximum 2 inch lifts, or as recommended by manufacturer, whichever
dimension is less.
3.
Ensure full bond of spray-foam to materials as needed for air barrier continuity.
07 21 00
THERMAL INSULATION
PAGE 9 OF 9
NORTHWEST MASONRY INSTITUTE
NATIONAL MASONRY SYSTEMS GUIDE
NORTHWEST EDITION – 01.14.2016
E.
Miscellaneous Voids: Install insulation in miscellaneous voids and cavity spaces where
required to prevent gaps in insulation using the following materials:
1.
3.4
A.
3.5
A.
Foam-In-Place Sealant: Apply according to manufacturer's written instructions.
PROTECTION
Protect installed work as required by the manufacturer to maintain product
performance, design criteria and warranty.
SCHEDULE:
Extruded Polystyrene Board:
1.
Locations:
a.
B.
Mineral Fiber Board:
1.
Locations:
a.
C.
As indicated.
Polyisocyanurate Board Insulation:
1.
Locations:
a.
D.
As indicated
As indicated.
Spray-Foam Insulation:
1.
Locations:
a.
As indicated.
END OF SECTION