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������������������������ SECTION 08840

 

����������������������� PLASTIC GLAZING

This section is based on HYZOD polycarbonate plastic glazing sheet and HYGARD laminated assemblies manufactured by Sheffield Plastics, Inc.� To request product documentation or technical assistance, write or call Sheffield's Technical Service Department as follows:

��� Sheffield Plastics, Inc.

��� Salisbury Road

��� Sheffield, MA� 01257

��� Telephone:� 413-229-8711 or 800-628-5084.

 

HYZOD sheet's impact strength is unsurpassed by any clear glazing product on the market.� It is 250 times stronger than plate glass and 30 times stronger than acrylic at half the weight of glass.� Laminated into HYGARD assemblies, it provides high security containment glazing or bullet-resisting protection.

 

PART 1� GENERAL

 

1.1 SECTION INCLUDES

Delete items below not required for project.

��� A.� Polycarbonate plastic glazing.

 

��� B.� Abrasion-resistant polycarbonate plastic glazing.

 

��� C.� Enhanced UV-resistant polycarbonate plastic glazing.

 

��� D.� Laminated polycarbonate plastic glazing for security applications.

 

��� E.� Laminated polycarbonate plastic glazing for bullet-resisting security glazing.

 

1.2 RELATED SECTIONS

Delete any sections below not relevant to this project; add others as required.

��� A.� Section 07820 - Metal Framed Skylights.

 

��� B.� Section 07900 - Joint Sealers.

 

��� C.� Section 08520 - Aluminum Windows.

 

��� D.� Section 08800 - Glass and Glazing.

 

��� E.� Section 08920 - Glazed Aluminum Curtain Wall Systems.

 

1.3 REFERENCES

Delete references from the list below that are not actually required by the text of the edited section.

��� A.� ANSI Z 97.1 - Safety Performance Specifications and Methods of Test for Safety Glazing Used in Buildings.

 

��� B.� ASTM D 256 - Standard Test Methods for Impact Resistance of Plastics and Electrical Insulating Materials.

 

��� C.� ASTM D 638 - Standard Test Method for Tensile Properties of Plastics.

 

��� D.� ASTM D 790 - Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials.

 

��� E.� ASTM D 792 - Standard Test Methods for Specific Gravity (Relative Density) and Density of Plastics by Displacement.

 

��� F.� ASTM D 1929 - Standard Test Method for Ignition Properties of Plastics.

 

��� G.� ASTM F 1233 - Standard Test Method for Security Glazing Materials and Systems.

 

1.4 SUBMITTALS

 

��� A.� Submit under provisions of Section 01300.

 

��� B.� Product Data:� Submit manufacturer's printed product information that includes physical properties and recommended installation and glazing procedures, including edge engagement guidelines.

������� 1.� Include data on material weight, windload capacity, light transmission, shading coefficient, and thermal expansion.

 

��� C.� Verification Samples:� Submit samples for each glazing type specified, not less than 12 inches square and framed on two adjacent sides to show glazing system.

 

1.5 DELIVERY, STORAGE, AND HANDLING

 

��� A.� Deliver polycarbonate sheets on enclosed pallets.

 

��� B.� Store in dry, well-ventilated and covered areas at temperatures below 80 degrees F.

 

��� C.� Handle polycarbonate sheets carefully to prevent damage;� do not drop, slide, or drag.

 

1.6 WARRANTY

 

��� A.� Comply with provisions of Section 01700.

Retain first paragraph below for HYZOD GP glazing applications.� Retain second paragraph for HYZOD SL glazing applications.� Retain third paragraph below for HYZOD AR glazing applications.

��� B.� Provide manufacturer's 5-year written warranty covering breakage.

 

��� C.� Provide manufacturer's 5-year written warranty covering breakage, loss of light transmission, and yellowing.

 

��� D.� Provide manufacturer's 5-year written warranty covering breakage, abrasion resistance, coating failure, loss of light transmission, and yellowing.

 

 

PART 2� PRODUCTS

 

2.1 MANUFACTURER

 

��� A.� Provide products manufactured by Sheffield Plastics, Inc., Salisbury Road, Sheffield, MA� 01257.� Telephone:� 800-628-5084.

 

��� B.� Substitutions will not be acceptable.

 

2.2 MATERIALS

 

��� A.� Polycarbonate Sheet:� Comply with ANSI Z 97.1 and with properties as follows:

������� 1.� Specific gravity:� 1.2, per ASTM D 792.

������� 2.� Tensile strength, yield:� 9,000 psi, per ASTM D 638.

������� 3.� Tensile strength, ultimate:� 9,500 psi, per ASTM D 638.

������� 4.� Tensile modulus:� 340,000 psi, per ASTM D 638.

������� 5.� Flexural strength at 5% strain:� 13,500 psi, per ASTM D 790.

������� 6.� Flexural modulus:� 345,000 psi, per ASTM D 790.

������� 7.� Izod impact strength (0.125 inch notched):� 14-18 ft lb/in, per ASTM D 256.

������� 8.� Self ignition temperature:� 1077 degrees F, per ASTM D 1929.

������� 9.� Flash ignition temperature:� 872 degrees F, per ASTM D 1929.

HYZOD GP polycarbonate sheet offers high strength and light weight (half the weight of glass) for applications requiring protection against vandalism and burglary, as well as natural occurrences such as high winds, snow loads, and hailstorms.

 

Select the required thickness and color from those listed below, and delete those options not required.

��� B.� General Purpose Type:� Provide HYZOD GP, UV inhibiting plastic glazing sheet.

������� 1.� Thickness:� 0.062 inch nominal.

������� 2.� Thickness:� 0.093 inch nominal.

������� 3.� Thickness:� 0.118 inch nominal.

������� 4.� Thickness:� 0.177 inch nominal.

������� 5.� Thickness:� 0.236 inch nominal.

������� 6.� Thickness:� 0.375 inch nominal.

������� 7.� Thickness:� 0.500 inch nominal.

������� 8.� Color:� Clear 112.

������� 9.� Color:� Gray 713.

������� 10. Color:� Dark Gray 7135.

������� 11. Color:� Bronze 5109.

������� 12. Color:� Custom color to match Architect's sample.

HYZOD SL Sunlife plastic glazing sheet combines the impact strength of standard polycarbonate sheet with exceptional resistance to yellowing and hazing.� In applications exposed to direct sunlight, particularly in southern climates, HYZOD SL offers extended product service life.

 

Select the thickness and color required from those listed below, and delete other options.

��� C.� Enhanced UV Resistant Type:� Provide HYZOD SL plastic glazing sheet.

������� 1.� Thickness:� 0.118 inch nominal.

������� 2.� Thickness:� 0.177 inch nominal.

������� 3.� Thickness:� 0.236 inch nominal.

������� 4.� Thickness:� 0.375 inch nominal.

������� 5.� Thickness:� 0.500 inch nominal.

������� 6.� Color:� Clear 112.

������� 7.� Color:� Gray 713.

������� 8.� Color:� Dark Gray 7135.

������� 9.� Color:� Bronze 5109.

������� 10. Color:� Custom color to match Architect's sample.

HYZOD AR offers the dual protection of polycarbonate sheet's high impact strength and superior abrasion resistance offered by a hard-coated, nonstick surface that cleans easily and even allows ready removal of spray-paint graffiti.

 

Select the thickness and color required for project from those listed below, and delete other options.

��� D.� UV and Abrasion Resistant Type:� Provide HYZOD AR hard-coated plastic glazing sheet.

������� 1.� Thickness:� 0.118 inch nominal.

������� 2.� Thickness:� 0.177 inch nominal.

������� 3.� Thickness:� 0.236 inch nominal.

������� 4.� Thickness:� 0.375 inch nominal.

������� 5.� Thickness:� 0.500 inch nominal.

������� 6.� Color:� Clear 112.

������� 7.� Color:� Gray 713.

������� 8.� Color:� Dark Gray 7135.

������� 9.� Color:� Bronze 5109.

������� 10. Color:� Custom color to match Architect's sample.

 

��� E.� Glazing Accessories:� As recommended by manufacturer of plastic glazing sheet for wet or dry glazing installations.

 

2.3 LAMINATED GLAZING

 

��� A.� Provide plastic glazing material comprised of face layers of HYZOD AR polycarbonate sheet factory-laminated into high-impact security glazing assemblies.

Select type or types of security glazing required from those listed below and delete others.� Laminated assemblies are listed in order of increasing thickness and level of protection.

��� B.� Containment Glazing:

������� 1.� Provide HYGARD CG375 two-ply polycarbonate laminate with the following properties:

����������� a.� Forced entry ratings:� H.P. White TP0500.02 Level II Step 11;� ASTM F 1233 Class III Step 12.

����������� b.� Gage:� 0.380 inch, +/- 5% tolerance.

����������� c.� Weight:� 2.5 pounds per sq. ft.

����������� d.� Shading coefficient:� 0.92.

����������� e.� Light transmittance (clear):� 84%.

������� 2.� Provide HYGARD CG500 three-ply polycarbonate laminate with the following properties:

����������� a.� Forced entry ratings:� H.P. White TP0500.02 Level II Step 12; ASTM 1233 Class III, Step 15.

����������� b.� Gage:� 0.525 inch, +/- 5% tolerance.

����������� c.� Weight:� 3.3 pounds per sq. ft.

����������� d.� Shading coefficient:� 0.90.

����������� e.� Light transmittance (clear):� 84%.

������� 3.� Provide HYGARD CG750 three-ply polycarbonate laminate with the following properties:

����������� a.� Forced entry ratings:� H.P. White TP0500.02 Level IV Step 31; ASTM F 1233 Class IV Step 26.

����������� b.� Gage:� 0.775 inch, +/- 5% tolerance.

����������� c.� Weight:� 4.9 pounds per sq. ft.

����������� d.� Shading coefficient:� 0.87.

����������� e.� Light transmittance (clear):� 80%.

 

��� C.� Bullet Resistant Glazing:

������� 1.� Provide HYGARD BR750 three-ply polycarbonate and acrylic laminate with the following properties:

����������� a.� Ballistics rating:� UL 752 Level I MPSA .38 Super Automatic.

����������� b.� Gage:� 0.800 inch, +/- 5% tolerance.

����������� c.� Weight:� 5.1 pounds per sq. ft.

����������� d.� Shading coefficient:� 0.89.

����������� e.� Light transmittance (clear):� 88%.

������� 2.� Provide HYGARD BR1250 four-ply polycarbonate laminate with the following properties:

����������� a.� Ballistics ratings:� UL 752 Level III SPSA .44 magnum.

����������� b.� Forced entry ratings:� H.P. White TPO500.02 Level V;� ASTM F 1233, Class IV.

����������� c.� Gage:� 1.32 inch, +/- 5% tolerance.

����������� d.� Weight:� 8.1 pounds per sq. ft.

����������� e.� Shading coefficient:� 0.81.

����������� f.� Light transmittance (clear):� 73%.

 

 

PART 3� EXECUTION

 

3.1 EXAMINATION

 

��� A.� Inspect pallets upon delivery for evidence of damage.

 

��� B.� Inspect and verify that frame openings are correct size and conform to recommendations of the plastic glazing sheet manufacturer.

 

3.2 PREPARATION

 

��� A.� Clean frame contact surfaces with compatible solvent and wipe dry.� Do not allow solvent to pool in glazing channels.

 

��� B.� Immediately prior to installation, expose glazing edges of plastic sheet by peeling back factory-applied protective masking to a dimension sufficient for edge engagement.

 

3.3 INSTALLATION

 

��� A.� Install plastic glazing in accordance with manufacturer's recommendations for edge engagement and expansion allowance.

 

��� B.� Employ only sealants and glazing accessories that have been approved by manufacturer of plastic glazing sheet.

 

��� C.� Remove protective masking immediately after all glazing operations are completed.

 

3.4 ADJUSTING AND CLEANING

 

��� A.� If installed properly, plastic glazing should not require additional cleaning after de-masking.� If cleaning becomes necessary, comply with manufacturer's instructions, and use only cleaning agents and techniques that have been approved by the manufacturer.

 

3.5 PROTECTION

 

��� A.� Comply with provisions of Section 01700 for protecting installed work.

 

��� B.� Affix polyethylene film or other covering approved by plastic glazing sheet manufacturer to framing members, as required to protect plastic glazing from other construction operations.

 

3.6 SCHEDULE

Possibly provide a schedule here if several types of plastic glazing are required.� Alternatively, plastic glazing could be included in a glazing schedule on the drawings or in Section 08800, with a cross reference in this section.

 

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