DMCC UPTOWN PLAZA

DUBAI, UAE

SECTION 088400 - PLASTIC GLAZING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Monolithic acrylic glazing.

2. Monolithic polycarbonate glazing.
3. Multiwalled structured polycarbonate glazing.

B. Related Requirements:

1. Section 084513 "Structured-Polycarbonate-Panel Assemblies" for aluminum-framed

assemblies glazed with multiwalled structured polycarbonate panels.

1.2 COORDINATION

A. Coordinate glazing channel dimensions to provide necessary bite on plastic glazing, minimum
edge and face clearances, and adequate sealant thicknesses, with reasonable tolerances.

1.3 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at Project site.

1. Review and finalize construction schedule and verify availability of materials, Installer's
personnel, equipment, and facilities needed to make progress and avoid delays.
2. Review temporary protection requirements for plastic glazing during and after installation.

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product.

B. Sustainable Design Submittals.

C. Plastic Glazing Samples: For each color and finish of plastic glazing indicated, 12 inches (300
mm) square and of same thickness indicated for final Work.

D. Glazing Accessory Samples: For gaskets and sealants, in 12-inch (300-mm) lengths. Install
sealant Samples between two strips of material representative in color of the adjoining framing
system.

E. Plastic Glazing Schedule: List plastic glazing types and thicknesses for each size opening and
location. Use same designations indicated on Drawings. Indicate coordinated dimensions of
plastic glazing and construction that receives plastic glazing, including clearances and glazing
channel dimensions.

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DMCC UPTOWN PLAZA
DUBAI, UAE

1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data: For testing agency.

B. Product Certificates: For plastic glazing and glazing products.

C. Product Test Reports: For plastic glazing glazing sealants and glazing gaskets, for tests
performed by a qualified testing agency.

1. For glazing sealants, provide test reports based on testing current sealant formulations
within previous 36-month period.

D. Preconstruction adhesion and compatibility test report.

E. Research/Evaluation Reports: For plastic glazing.

F. Sample Warranty: For special warranty.

1.6 CLOSEOUT SUBMITTALS

A. Maintenance Data: For plastic glazing to include in maintenance manuals.

1.7 QUALITY ASSURANCE

A. Sealant Testing Agency Qualifications: An independent testing agency qualified according to

ASTM C1021 to conduct the testing indicated.

B. Mockups: Build mockups to verify selections made under Sample submittals, to demonstrate
aesthetic effects, and to set quality standards for materials and execution.
1. Subject to compliance with requirements, approved mockups may become part of the
completed Work if undisturbed at time of Substantial Completion.

1.8 PRECONSTRUCTION TESTING

A. Preconstruction Adhesion and Compatibility Testing: Test each plastic glazing type, tape
sealant, gasket, glazing accessory, and glazing-framing member for adhesion to and
compatibility with elastomeric glazing sealants.

1. Testing is not required if data are submitted based on previous testing of current sealant
products and plastic glazing matching those submitted.
2. Use ASTM C1087 to determine whether priming and other specific joint-preparation
techniques are required to obtain rapid, optimum adhesion of glazing sealants to glazing,
tape sealants, gaskets, and glazing channel substrates.
3. Test no fewer than eight Samples of each type of material, including joint substrates,
shims, sealant backings, secondary seals, and miscellaneous materials.
4. Schedule enough time for testing and analyzing results to prevent delaying the Work.
5. For materials failing tests, submit sealant manufacturer's written instructions for corrective
measures including the use of specially formulated primers.

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DMCC UPTOWN PLAZA
DUBAI, UAE

1.9 DELIVERY, STORAGE, AND HANDLING

A. Protect plastic glazing materials according to manufacturer's written instructions. Prevent

damage to plastic glazing and glazing materials from condensation, temperature changes,
direct exposure to sun, or other causes.

B. Maintain protective coverings on plastic glazing to avoid exposures to abrasive substances,

excessive heat, and other sources of possible deterioration.

1.10 FIELD CONDITIONS

A. Environmental Limitations: Do not proceed with glazing when ambient and substrate
temperature conditions are outside limits permitted by glazing material manufacturers and when
glazing channel substrates are wet from rain, frost, condensation, or other causes.

1. Do not install glazing sealants when ambient and substrate temperature conditions are
outside limits permitted by sealant manufacturer or below 40 deg F (4.4 deg C).

1.11 WARRANTY

A. Manufacturer's Special Warranty for Abrasion- and UV-Resistant, Monolithic and Multiwalled
Structured Polycarbonate: Manufacturer agrees to replace polycarbonate products that break or
develop defects from normal use that are attributable to manufacturing process and not to
practices for maintaining and cleaning plastic glazing contrary to manufacturer's written
instructions. Defects include coating delamination, haze, excessive yellowing, and loss of light
transmission beyond the limits stated in plastic glazing manufacturer's standard form.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Source Limitations: Obtain plastic glazing from single source from single manufacturer. Obtain
sealants and gaskets from single source from single manufacturer for each product and
installation method.

2.2 PRODUCT SELECTION

A. Materials and products supplied by contractor shall match the Employer’s approved samples
provided by the Architect, in all aspects, including but not limited to form, texture, size, shape,
aesthetics, performance and technical specification. If a specific sample is not provided by the
Architect/ Engineer for any specified product or material, then the Contractor shall submit
samples to the Engineer, of such materials and products, for selection and approval.

B. It is the responsibility of the Contractor to read all the Contract documents together. In case of
any conflict or ambiguity, actual or perceived, the more stringent of the specification or
conditions will apply, and the Engineers interpretation shall be treated as final and binding. All
conflicts or ambiguities, actual or perceived, shall be brought to the attention of the Engineer.

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DMCC UPTOWN PLAZA
DUBAI, UAE

C. The contractor shall provide for the Engineers approval, three equivalent or better proposals for
final approval during construction. “Basis of Design/ Product selection” as selected and
approved by the Engineer.

2.3 PERFORMANCE REQUIREMENTS

A. Plastic glazing sheets and glazing materials shall withstand normal temperature changes, wind,
and impact loads without failure, including loss or breakage of plastic sheets attributable to the
following: failure of sealants or gaskets to remain watertight and airtight, deterioration of plastic
sheet and glazing materials, or other defects in materials and installation.

B. Safety Glazing: Plastic glazing shall comply with 16 CFR 1201, Category II.

1. Labeling: Permanently mark plastic glazing with certification label of an agency

acceptable to authorities having jurisdiction. Label shall indicate manufacturer's name,
type of plastic, thickness, and safety glazing standard with which plastic glazing complies.

C. Thermal Movements: Allow for thermal movements from ambient and surface temperature
changes acting on plastic glazing and glazing framing members.

1. Temperature Change: 120 deg F (67 deg C), ambient; 180 deg F (100 deg C), material
surfaces.

D. Fire-Test-Response Characteristics of Plastic Glazing: As determined by testing plastic glazing

by a qualified testing agency acceptable to authorities having jurisdiction.

1. Self-ignition temperature of 650 deg F (343 deg C) or higher when tested according to
ASTM D1929 on plastic sheets in thicknesses indicated for the Work.
2. Smoke density of 75 or less when tested according to ASTM D2843 on plastic sheets in
thicknesses indicated for the Work.
3. Burning extent of 1 inch (25 mm) or less when tested according to ASTM D635 at a
nominal thickness of 0.060 inch (1.52 mm) or thickness indicated for the Work, where
Class CC1 is indicated.
4. Burning rate of 2.5 in./min. (1.06 mm/s) or less when tested according to ASTM D635 at
a nominal thickness of 0.060 inch (1.52 mm) or thickness indicated for the Work, where
Class CC2 is indicated.
5. Flame-spread index of not less than that indicated when tested according to ASTM E84.

2.4 PLASTIC GLAZING, GENERAL

A. Glazing Publication: Comply with published instructions of plastic glazing manufacturers and
with GANA's "Glazing Manual" unless more stringent requirements are indicated. See this
publication for definitions of glazing terms not otherwise defined in this Section or in other
referenced standards.

B. Plastic Glazing Labeling: Identify plastic sheets with appropriate markings of applicable testing
and inspecting agency, indicating compliance with required fire-test-response characteristics.

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DMCC UPTOWN PLAZA
DUBAI, UAE

2.5 MONOLITHIC ACRYLIC GLAZING

A. Plastic Glazing: Transparent acrylic sheet; ASTM D4802, Category A-1 (cell cast) or
Category B-1 (continuously manufactured), Finish 1 (smooth or polished), Type UVF (UV
filtering).
1. Nominal Thickness: As indicated.
2. Color: As indicated.
3. Combustibility Class: CC2.

2.6 MONOLITHIC POLYCARBONATE GLAZING

A. Plastic Glazing: Polycarbonate sheet; ASTM C1349, Appendix X1, Type I (standard, UV
stabilized), with a polished finish.
1. Nominal Thickness: As indicated.
2. Color: As indicated.
3. Combustibility Class: CC1.
4. Flame-Spread Index: 25 or less.

2.7 MULTIWALLED STRUCTURED POLYCARBONATE GLAZING

A. Multiwalled Structured Polycarbonate Sheet: Manufacturer's standard polycarbonate extruded

shape with smooth, flat exterior surfaces and internal ribbing.
1. Nominal Thickness: As indicated.
2. UV Resistance: On both surfaces.
3. Color: As indicated.
4. Combustibility Class: CC1.
5. Flame-Spread Index: 25 or less.

2.8 GLAZING GASKETS

A. Dense Compression Gaskets: Molded or extruded gaskets, EPDM, ASTM C864 or silicone,
ASTM C1115; and of profile and hardness required to maintain watertight seal.

B. Soft Compression Gaskets: Extruded or molded, closed-cell, integral-skinned EPDM or silicone

gaskets complying with ASTM C509, Type II, black; and of profile and hardness required to
maintain watertight seal.

2.9 GLAZING SEALANTS

A. General:

1. Compatibility: Provide glazing sealants that are compatible with one another and with
other materials they contact, including plastic glazing products and glazing channel
substrates, under conditions of service and application, as demonstrated by sealant
manufacturer based on testing and field experience.
2. Suitability: Comply with sealant and glass manufacturers' written instructions for selecting
glazing sealants suitable for applications indicated and for conditions existing at time of
installation.

B. Glazing Sealant: Neutral-curing silicone glazing sealant complying with ASTM C920, Type S,
Grade NS, Class 100/50, Use NT.

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DMCC UPTOWN PLAZA
DUBAI, UAE

2.10 GLAZING TAPES

A. Back-Bedding Mastic Glazing Tapes: Preformed, butyl-based, 100 percent solids elastomeric
tape; nonstaining and nonmigrating in contact with nonporous surfaces; with or without spacer
rod as recommended in writing by tape and glass manufacturers for application indicated; and
complying with ASTM C1281 and AAMA 800 for products indicated below:

1. AAMA 804.3 tape, where indicated.

2. AAMA 806.3 tape, for glazing applications in which tape is subject to continuous
pressure.
3. AAMA 807.3 tape, for glazing applications in which tape is not subject to continuous
pressure.

B. Expanded Cellular Glazing Tapes: Closed-cell, PVC foam tapes; factory coated with adhesive
on both surfaces; and complying with AAMA 800 for the following types:

1. AAMA 810.1, Type 1, for glazing applications in which tape acts as the primary sealant.
2. AAMA 810.1, Type 2, for glazing applications in which tape is used in combination with a
full bead of liquid sealant.

2.11 MISCELLANEOUS GLAZING MATERIALS

A. Compatibility: Provide products of material, size, and shape complying with requirements of
manufacturers of plastic glazing and other glazing materials for application indicated, and with a
proven record of compatibility with surfaces contacted in installation.

B. Cleaners, Primers, and Sealers: Types recommended by sealant or gasket manufacturer.

C. Setting Blocks: EPDM or silicone as required for compatibility with glazing sealant and plastic
glazing, and of hardness recommended by plastic glazing manufacturer for application
indicated.

D. Compressible Filler Rods: Closed cell of waterproof-jacketed rod stock of synthetic rubber or
plastic foam, flexible and resilient, with 5- to 10-psi (35- to 70-kPa) compression strength for 25
percent deflection.

2.12 FABRICATION

A. Sizes: Fabricate plastic glazing to sizes required for openings indicated. Allow for thermal
expansion and contraction of plastic glazing without restraint and without withdrawal of edges
from frames, with edge clearances and tolerances complying with plastic glazing manufacturer's
written instructions.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine plastic glazing framing, with glazing Installer present, for compliance with the following:

1. Manufacturing and installation tolerances, including those for size, squareness, and
offsets at corners.

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DMCC UPTOWN PLAZA
DUBAI, UAE

2. Minimum required face or edge clearances.

3. Effective sealing between joints of plastic glazing framing members.

B. Proceed with glazing only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Clean glazing channels and other framing members immediately before glazing. Remove
coatings not firmly bonded to substrates. Remove lacquer from metal surfaces where
elastomeric sealants are indicated for use.

3.3 GLAZING, GENERAL

A. Comply with combined written instructions of manufacturers of plastic glazing materials,

sealants, gaskets, and other glazing materials unless more stringent requirements are
indicated, including those in referenced glazing publication.

B. Glazing channel dimensions indicated on Drawings are designed to provide the necessary bite
on plastic glazing, minimum edge and face clearances, and adequate sealant thicknesses, with
reasonable tolerances. Adjust plastic glazing lites during installation to ensure that bite is equal
on all sides.

C. Sand or scrape cut edges of plastic glazing to provide smooth edges, free of chips and hairline
cracks.

D. Remove burrs and other projections from glazing channel surfaces.

E. Protect plastic glazing surfaces from abrasion and other damage during handling and
installation, according to the following requirements:

1. Retain plastic glazing manufacturer's protective covering or protect by other methods

according to plastic glazing manufacturer's written instructions.
2. Remove covering at border of each piece before glazing; remove remainder of covering
immediately after installation where plastic glazing is exposed to sunlight or where other
conditions make later removal difficult.
3. Remove damaged plastic glazing sheets from Project site and legally dispose of off-site.
Damaged plastic glazing sheets are those containing imperfections that, when installed,
result in weakened glazing and impaired performance and appearance.

F. Apply primers to joint surfaces where required for adhesion of sealants, as determined by
preconstruction sealant-substrate testing.

G. Install elastomeric setting blocks in sill channels, sized and located to comply with referenced
glazing publication, unless otherwise instructed by plastic glazing manufacturer. Set blocks in
thin course of compatible sealant suitable for heel bead.

H. Provide edge blocking to comply with referenced glazing publication unless otherwise instructed
by plastic glazing manufacturer.

I. Where wedge-shaped gaskets are driven into one side of channel to pressurize sealant or
gasket on opposite side, provide adequate anchorage so gasket cannot walk out when
installation is subjected to movement.

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DMCC UPTOWN PLAZA
DUBAI, UAE

J. Square cut wedge-shaped gaskets at corners and install gaskets as recommended in writing by
gasket manufacturer to prevent corners from pulling away; seal corner and butt joints with
sealant recommended by gasket manufacturer.

3.4 TAPE GLAZING

A. Install tapes continuously, but not in one continuous length. Do not stretch tapes to make them
fit opening.

B. Cover vertical framing joints by applying tapes to heads and sills first, then to jambs. Cover
horizontal framing joints by applying tapes to jambs, then to heads and sills.

C. Place joints in tapes at corners of opening with adjoining lengths butted together, not lapped.
Seal joints in tapes with compatible sealant recommended by tape manufacturer.

D. Do not remove release paper from tape until immediately before each lite is installed.

E. Apply heel bead of glazing sealant.

F. Center plastic glazing lites in openings on setting blocks and press firmly against tape by
inserting dense compression gaskets formed and installed to lock in place against faces of
removable stops. Start gasket applications at corners and work toward centers of openings.

G. Apply cap bead of glazing sealant over exposed edge of tape.

3.5 GASKET GLAZING (DRY)

A. Fabricate compression gaskets in lengths recommended in writing by gasket manufacturer to fit

openings exactly, with allowance for stretch during installation.

B. Insert soft compression gasket between plastic glazing and frame or fixed stop so it is securely
in place with joints miter cut and bonded together at corners.

C. Center plastic glazing lites in openings on setting blocks and press firmly against soft
compression gasket by inserting dense compression gaskets formed and installed to lock in
place against faces of removable stops. Start gasket applications at corners and work toward
centers of openings. Compress gaskets to produce a weathertight seal without developing
bending stresses in plastic glazing. Seal gasket joints with sealant recommended by gasket
manufacturer.

D. Install gaskets so they protrude past face of glazing stops.

3.6 SEALANT GLAZING (WET)

A. Install continuous spacers between plastic glazing lites and glazing stops to maintain plastic
glazing face clearances and to prevent sealant from extruding into glazing channel weep
systems until sealants cure. Secure spacers in place and in position to control depth of installed
sealant relative to edge clearance for optimum sealant performance.

B. Force sealants into glazing channels to eliminate voids and to ensure complete wetting or bond
of sealant to plastic glazing and channel surfaces.

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DUBAI, UAE

C. Tool exposed surfaces of sealants to provide a substantial wash away from plastic glazing.

3.7 CLEANING AND PROTECTION

A. Protect plastic glazing from contact with contaminating substances from construction
operations. If, despite such protection, contaminating substances do come into contact with
plastic glazing, remove immediately and wash plastic glazing according to plastic glazing
manufacturer's written instructions.

B. Remove and replace plastic glazing that is broken, chipped, cracked, abraded, or damaged in
other ways during construction period, including natural causes, accidents, and vandalism.

C. Wash plastic glazing on both faces before date scheduled for inspections intended to establish
date of Substantial Completion in each area of Project. Wash plastic glazing according to plastic
glazing manufacturer's written instructions.

END OF SECTION 088400

Section 088400 – Plastic Glazing 9