SECTION 07 21 13
THERMALSTAR CVT
CAVITY WALL INSULATION
ThermalStar® CVT™ Insulation in Cavity Wall Applications
PART 1 GENERAL
1.1
SECTION INCLUDES
A.
THERMALSTAR CVT RIGID INSULATION
1.2
RELATED SECTIONS
A.
Section 03300 - Cast In Place Concrete: Concrete base wall
B.
Section 03400 - Pre-Cast Concrete: Pre-cast concrete base wall
C.
Section 05400 - Cold Formed Metal Framing
D.
Section 04210 - Clay Masonry: Brick facing
E.
Section 04800 - Masonry Assemblies: Masonry base wall
F.
Section 04850 - Stone Facing
G.
Section 07260 - Vapor Retarders
H.
Section 07270 - Air Barriers
I.
Section 09110 - Non-Structural Metal Framing
J.
Section 09200 - Plaster and Gypsum Board
K.
Section 09220 - Stucco
1.3
REFERENCES
A. ASTM C578 - Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
B. ASTM D1621 - Test Method for Compressive Properties of Rigid Cellular Plastics
C. ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials
D. ASTM C1512 - Test Method for Characterizing the Effect of Exposure to Environmental Cycling on
Thermal Performance of Insulation Products
E. ASTM E96 - Standard Test Methods for Water Vapor Transmission of Materials
F. NFPA285 Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior NonLoad Bearing Wall Assemblies Containing Combustible Components
G. NFPA286 Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish
to Room Fire Growth
H. ASTM D 2126 - Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging
I. ASTM D 3273 - Standard Test Method for Resistance to Growth of Mold on the Surface of Interior
Coatings in an Environmental Chamber
J. UL Report ER16529-01
K. ICC-ES AC239 – Acceptance Criteria for Termite Resistant Foam Plastics
1.4
DESIGN REQUIREMENTS
A.
Perform work in accordance with all federal, state and local codes.
B.
Physical properties:
1.
Compressive Strength: ASTM D 1621; ThermalStar CVT 15 - 15 psi (110 kPa) minimum;
ThermalStar CVT 25 - 25 psi (172 kPa)
2.
Dimensional Stability: ASTM D 2126, 0.4 percent linear change (7 days).
3.
Moisture Vapor Permeance: ASTM E 96, more than 1.5 perm per inch – dessicant method
4.
Water Absorption: ASTM C272, less than 1.5 percent by volume.
5.
Service Temperature: Minus 100 degrees to 160 degrees F
6.
Termite Resistance: Approved for use in “very heavy termite infestation” areas via AC239
approval testing
C.
Combustion Properties:
1.
NFPA285 Approvals: Cladding, Foam Plastic, Air / Water Resistive Barrier verified for
combined approval via UL16529-01 report
2.
ASTM E84: Foam Plastic verified as Flame Spread Index less than 25 per code requirement
as UL Listed R16529.BRYX
3.
NFPA286 Approval: Foam plastic approved for exposed use as interior finish up to 4” thick
per UL report ER16529-01
1.5
SUBMITTALS
A.
Submit under provisions of Section 01300.
B.
D.
Product Data: Manufacturer's data sheets on wall panels and fasteners to be used, including:
1.
Preparation instructions and recommendations
2.
Storage and handling requirements and recommendations
3.
Installation methods
Warranties:
1.
Limited Lifetime Thermal Warranty
2.
Limited Lifetime Physical Properties Warranty
3.
Limited Lifetime Termite Resistance Warranty
Manufacturer's Certificate: Certify panels will conform to specified performance requirements.
1.6
QUALITY ASSURANCE
A.
Manufacturer Qualifications: Manufacturer shall be a company that regularly manufactures and
assembles specified insulation in house with no outside fabrication operations
B.
Pre-Installation Meeting: Convene minimum one week prior to commencing Work of this section.
Review installation procedures and coordination required with Related Work and include the
following:
C.
1.
2.
3.
4.
5.
Participants: Authorized representatives of the Contractor, Architect, Installer, and
Manufacturer.
Review wall assemblies for potential interference and conflicts and coordinate layout and
support provisions for interfacing work.
Review continuous insulation wall panels installation methods and procedures related to
application, including manufacturer’s installation guidelines.
Review firestopping requirements and weather resistive membrane requirements and
placement locations.
Review field quality control procedures.
1.7
DELIVERY, STORAGE, AND HANDLING
A.
Store products off the ground, in dry conditions, under cover and in manufacturer's unopened
packaging until ready for installation.
1.8
SEQUENCING
A.
Coordinate with the installation of vapor retarders and air seal materials specified is Section 07260
and Section 07270.
B.
Ensure that products of this section are supplied to affected trades in time to prevent interruption of
construction progress.
1.9
PROJECT CONDITIONS
A.
Maintain environmental conditions (temperature, humidity, and ventilation) within limits
recommended by manufacturer for optimum results. Do not install products under environmental
conditions outside manufacturer's absolute limits.
PART 2 PRODUCTS
2.1
MANUFACTURERS
A.
B.
C.
Acceptable Manufacturer: Insulating panels shall be ThermalStar CVT products produced by Atlas
EPS, a Div of Atlas Roofing Corporation.
Substitutions: Not permitted.
Requests for substitutions will be considered in accordance with provisions of Section 01600.
2.2
BOARD INSULATION
A.
Rigid Polystyrene Insulation: ThermalStar CVT complies with ASTM C 578. Panels are a rigid
insulation panel composed of a closed cell polystyrene with tested termite resistance
1.
Type: ASTM C 578:
a.
CVT 15 – Type II (15 psi)
b.
CVT 25 – Type II (25 psi)
2.
Flame Spread Index: ASTM E84, Less than 25
3.
Panel Size:
a.
4 feet by 8 feet
b.
Other sized are available upon special request
c.
Provide the largest size panels suitable for the project
4.
Moisture Vapor Transmission: ASTM E 96, greater than 1.5 perm per inch.
5.
Thickness / R Value: ASTM C 518 at 75 degrees F (23.9 degrees C). R Value is 4.2 per inch
thickness
a.
1-3/16 inches / R Value 5.0
b.
1-7/8 inches / R Value 7.5
c.
d.
e.
f.
2-3/8 inches / R Value 10.0
2-7/8 inches / R Value 12.0
3-5/8 inches / R Value 15.0
Provide to the thickness indicated on the Drawings.
2.3
APPLICATION
A.
NFPA 285 Exterior Wall Assembly – Concrete Masonry (CMU):
1.
Base Wall System: Concrete Masonry UNIT Wall.
2.
Approved Exterior Finish:
a.
Masonry: Brick veneer anchors, standard types, installed maximum 24 inches o.c.
vertically. Maximum 2 inch air gap between exterior insulation and brick. Standard
nominal 4 inches thick or greater, clay brick.
b.
Limestone: Minimum 2 inches thick with non-open joint installation technique such as
shiplap
c.
Natural Stone Veneer: Minimum 2 inches thick with non-open joint installation
technique such
d.
Precast Artificial Stone: Minimum 1-1/2 inches thick complying with ICC-ES AC51 with
non-open joint technique
e.
Terra Cotta Cladding: Minimum 1-1/4 inches thick with non-open joint installation
technique
f.
Stucco: Minimum ¾” thick exterior cement plaster and lathe
3.
Insulation Panel Thickness: 7.2 inches maximum ThermalStar CVT.
4.
Stud Cavity: Not Applicable.
5.
Exterior Sheathing: Not Applicable, 1/2 inch (12.5 mm), or 5/8 inch (16 mm) thick exterior
type gypsum sheathing.
6.
Floorline Firestopping: 4 lb/cu ft mineral wool at each floor line, attached with Z Clips or
equivalent.
7.
Weather Resistive Membrane Applied to CMU: Acceptable products are:
a.
W.R. Grace: Perm-A-Barrier VPS
b.
Sto Corp: EmeraldCoat
c.
Tremco: EXOAir 230
d.
DuPont: Tyvek Fluid Applied WB, Tyvek Commercial Wrap (1 or 2 layers)
e.
PROSOCO: R-Guard MVP, CAT-5, VB, Spray Wrap
f.
Henry: Air Bloc 21FR, 31MR, 33MR, VP160, EnviroCap
g.
Carlisle (CCW): Barritech NP, VP
h.
BASF: Enershield HP, 1
i.
WR Meadows: Air-Shield LMP, TMP, LSR
j.
Dow Corning: Defend-Air 200 Low Temp
k.
None
B.
NFPA 285 Exterior Wall Assembly – Cast-in-Place or Precast Concrete:
1.
Base Wall System: CAST Concrete Masonry Wall.
2.
Approved Exterior Finish:
a.
Masonry: Brick veneer anchors, standard types, installed maximum 24 inches o.c.
vertically. Maximum 2 inch air gap between exterior insulation and brick. Standard
nominal 4 inches thick or greater, clay brick.
b.
Limestone: Minimum 2 inches thick with non-open joint installation technique such as
shiplap
c.
Natural Stone Veneer: Minimum 2 inches thick with non-open joint installation
technique such
d.
Precast Artificial Stone: Minimum 1-1/2 inches thick complying with ICC-ES AC51 with
non-open joint technique
e.
Terra Cotta Cladding: Minimum 1-1/4 inches thick with non-open joint installation
technique
f.
Stucco: Minimum ¾” thick exterior cement plaster and lathe
3.
4.
5.
6.
7.
C.
Insulation Panel Thickness: 7.2 inches maximum ThermalStar CVT.
Stud Cavity: Not Applicable.
Exterior Sheathing: Not Applicable, 1/2 inch (12.5 mm), or 5/8 inch (16 mm) thick exterior
type gypsum sheathing.
Floorline Firestopping: 4 lb/cu ft mineral wool at each floor line, attached with Z Clips or
equivalent.
Weather Resistive Membrane Applied to concrete wall: Acceptable products are:
a.
W.R. Grace: Perm-A-Barrier VPS
b.
Sto Corp: EmeraldCoat
c.
Tremco: EXOAir 230
d.
DuPont: Tyvek Fluid Applied WB, Tyvek Commercial Wrap (1 or 2 layers)
e.
PROSOCO: R-Guard MVP, CAT-5, VB, Spray Wrap
f.
Henry: Air Bloc 21FR, 31MR, 33MR, VP160, EnviroCap
g.
Carlisle (CCW): Barritech NP, VP
h.
BASF: Enershield HP, 1
i.
WR Meadows: Air-Shield LMP, TMP, LSR
j.
Dow Corning: Defend-Air 200 Low Temp
k.
None
NFPA 285 Exterior Wall Assembly – Steel Stud:
1.
Base Wall System: Steel Stud, 1 layer 5/8 inch thick Type X on interior, installed over steel
studs: minimum 3-5/8 inches depth, minimum 25 gauge at a maximum of 24 inches o.c. with
lateral bracing every 4 foot vertically.
2.
Approved Exterior Finish:
a.
Masonry: Brick veneer anchors, standard types, installed maximum 24 inches o.c.
vertically on each stud. Maximum 2 inch air gap between exterior insulation and brick.
Standard nominal 4 inches thick or greater, clay brick.
b.
Limestone: Minimum 2 inches thick with non-open joint installation technique such as
shiplap
c.
Natural Stone Veneer: Minimum 2 inches thick with non-open joint installation
technique such
d.
Precast Artificial Stone: Minimum 1-1/2 inches thick complying with ICC-ES AC51 with
non-open joint technique
e.
Terra Cotta Cladding: Minimum 1-1/4 inches thick with non-open joint installation
technique
f.
Stucco: Minimum ¾” thick exterior cement plaster and lathe
3.
Insulation Panel Thickness: 7.2 inches maximum ThermalStar CVT.
4.
Stud Cavity:
a.
Any non-combustible insulation
b.
Any Class A, B, or C Fiberglass batt insulation (faced or unfaced)
c.
None.
5.
Exterior Sheathing: 1/2 inch or 5/8 inch thick exterior type gypsum sheathing.
6.
Floorline Firestopping: 4 lb/cu ft mineral wool in each stud cavity at each floor line, attached
with Z Clips or equivalent.
7.
Weather Resistive Membrane Applied to Gypsum sheathing: Acceptable products are:
a.
W.R. Grace: Perm-A-Barrier VPS
b.
Sto Corp: EmeraldCoat
c.
Tremco: EXOAir 230
d.
DuPont: Tyvek Fluid Applied WB, Tyvek Commercial Wrap (1 or 2 layers)
e.
PROSOCO: R-Guard MVP, CAT-5, VB, Spray Wrap
f.
Henry: Air Bloc 21FR, 31MR, 33MR, VP160, EnviroCap
g.
Carlisle (CCW): Barritech NP, VP
h.
BASF: Enershield HP, 1
i.
WR Meadows: Air-Shield LMP, TMP, LSR
j.
Dow Corning: Defend-Air 200 Low Temp
k.
None.
D.
Non- Rated Exterior Wood Stud Walls: Continuous board type insulation applied to wood studs or
wood or gypsum sheathing.
1.
Base Wall: Wood studs minimum 3-5/8 inch depth, maximum 16 inches O.C. with I layer
minimum 5/8 inch gypsum wallboard on interior.
2.
Cavity Insulation:
a.
None.
b.
Any noncombustible insulation
c.
Fiberglass batt insulation, faced or unfaced
3.
Exterior Sheathing: Wood or gypsum sheathing.
4.
Weather Resistant Membrane Over Sheathing:
a.
W.R. Grace: Perm-A-Barrier VPS
b.
Sto Corp: EmeraldCoat
c.
Tremco: EXOAir 230
d.
DuPont: Tyvek Fluid Applied WB, Tyvek Commercial Wrap (1 or 2 layers)
e.
PROSOCO: R-Guard MVP, CAT-5, VB, Spray Wrap
f.
Henry: Air Bloc 21FR, 31MR, 33MR, VP160, EnviroCap
g.
Carlisle (CCW): Barritech NP, VP
h.
BASF: Enershield HP, 1
i.
WR Meadows: Air-Shield LMP, TMP, LSR
j.
Dow Corning: Defend-Air 200 Low Temp
k.
None
5.
Exterior Insulation: Continuous board type insulation maximum 7.2 inches thick.
a.
Insulation Type: ThermalStar CVT for Cavity Wall Application.
6.
Weather Resistant Membrane Over Exterior Insulation:
a.
None
b.
Any House Wrap
7.
Exterior Facing:
a.
Brick
b.
Stucco
c.
Natural stone veneer
d.
Cast stone veneer
e.
Terracotta
f.
Metal Composite panel
g.
Metal siding or cladding
h.
Fiber cement board
i.
Vinyl siding
j.
Wood siding
2.4
PANEL FASTENERS
A.
Fasteners are a corrosion resistant type with oversized heads. Length of fasteners shall be as
recommended by the panel manufacturer.
1.
2.
WindLok or Rodenhouse foam panel fasteners
Heckmann Pos-i-tie, Hohmann & Barnard 2 Seal Tie, Wire Bond Sure Tie, or alternate ties
designed for proper attachment of cementitious claddings to base wall
PART 3 EXECUTION
3.1
EXAMINATION
A.
Do not begin installation until exterior walls have been properly prepared.
B.
Verify that all exterior wall assembly construction has been completed to the point where the
insulation may correctly be installed.
C.
Verify that mechanical and electrical services in walls have been installed and tested and, if
appropriate, verify that adjacent materials and finishes are dry and ready to receive insulation.
D.
If wall assembly preparation is the responsibility of another installer, notify Architect of
unsatisfactory preparation before proceeding.
3.2
PREPARATION
A.
Clean surfaces thoroughly prior to installation.
B.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best
result for the substrate under the project conditions.
3.3
INSTALLATION
A.
Install in accordance with manufacturer's instructions.
B.
Install in exterior spaces without gaps or voids. Do not compress insulation.
C.
Trim insulation neatly to fit spaces. Insulate miscellaneous gaps and voids.
D.
Fit insulation tight in spaces and tight to exterior side of mechanical and electrical services within
plane of insulation.
E.
Fasten Insulation to substrate. Provide base support for the insulation panels as required for the
exterior cladding to be installed over the panels. Exterior cladding must be attached through to the
framing as required by the cladding manufacturer. Coordinate with the cladding or wall finish
manufacturer for the attachment requirements over insulation panels.
F.
Exposed insulation must be protected from open flame.
G.
Install vapor retarders as specified in Section 07260.
H.
Install air barriers as specified in Section 07270.
I.
Exterior wall insulation is not intended to be left exposed for extended periods of time in excess of
45-60 days without adequate protection. If extended exposure is anticipated all exposed foam
surfaces including corners, window and door openings, should be taped with a compatible
waterproof tape.
J.
Install exterior cladding as recommended by the cladding manufacturer and as specified in other
sections of this specification.
3.4
PROTECTION
A.
Protect installed products until completion of project.
B.
Cover the top and edges of unfinished roof panel work to protect it from the weather and to prevent
accumulation of water on top of the panels.
C.
Repair or replace damaged products before Substantial Completion.
END OF SECTION