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Laminated

Glass Hurricane-

Impact and Windborne

Debris- Resistance

CFP PAN – Lami

Hurricane and Windborne

Debris Edition 2.1

October 2008

Using Laminated Glass for Hurricane-Impact and Windborne Debris-Resistant Applications

S e c t i o n 1 OVERVIEW

INTRODUCTION

Hurricanes create a combination of cycling pressure loads and windborne debris that can have a devastating impact on homes that are not adequately protected. This Product Application Note is intended to provide an overview of the use of laminated glass to address the unique requirements associated with hurricane-impact and windborne debris-resistant glazing.

GLAZING FOR PERFORMANCE AND STORM PROTECTION

Building codes from the Gulf Coast to Northern New England include requirements for glazing systems that will withstand hurricane winds and protect against penetration of windborne debris. Specially designed laminated glass products can meet this performance standard without the need for storm panels or shutters. Although the glass may break upon impact, the plastic interlayer and the structural bonding of the glazing system to the window frame helps the glazing panel to remain in place, protecting the interior of the building. Note that in addition to the specially designed glass package, an impact-resistant window requires the means to structurally fasten the glass to the window frame. The test protocol for compliance involves impacting the window in multiple locations and then subjecting the entire window system to positive and negative pressure cycles to replicate hurricane conditions. In all cases, qualification of hurricane protective glazing is based on total window system performance.

In addition to requirements for storm protection, these building codes also contain high standards for energy efficiency across a diverse range of climate zones. By combining laminated glass with spectrally selective low-E, it is possible to configure a glazing system that provides wind-borne debris protection when you need it and safety from human impact, plus energy efficiency, fade-resistance and acoustical damping year-round.

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CFP PAN – Lami

Hurricane and Windborne

Debris Edition 2.1

October 2008

Laminated

Glass Hurricane-

Impact and Windborne

Debris- Resistance

S e c t i o n 2 GLAZING FOR HURRICANE-IMPACT AND WINDBORNE DEBRIS PROTECTION

BACKGROUND

Designing or adapting a window system to meet hurricane resistant performance standards involves more than the glazing system. All elements of the window system must work together to resist the impact and cycling pressures associated with extreme wind and flying debris. The choice of glass, interlayer, and anchoring method has a direct effect on the performance of the glazing system. Glass thickness and strength, and the choice of interlayer material and thickness should be based on window type, size and geometry, and design pressure.

Comprehensive wind-damage surveys have identified patterns that seem to apply to all extreme wind events. Small debris, such as roof gravel, can impact all elevations of a building with sufficient velocity to break glass. Large debris, such as tree limbs, garbage cans, and building materials typically impact buildings closer to ground level with sufficient force to break windows and penetrate walls. This analysis led to the current “large missile / small missile” windborne debris impact categories for glazing systems.

When hurricane-force winds act on a structure, pressures are exerted on the exterior walls. Gusting winds that can exceed 150 miles per hour create a positive pressure on the windward elevation, and winds deflecting around and above the structure create negative pressure on the roof and non-windward elevations. In addition to this negative external pressure, positive internal pressure develops if the envelope of the building is broken due to the impact of flying debris. This internal pressure, combined with the uplift already acting on the roof, makes the roof much more likely to completely detach from the structure. Impact-resistant building codes are designed to ensure that products used in new construction and renovation projects retain their integrity and remain intact during severe windstorms. As depicted in Figure 1, internal pressures can effectively double the forces acting to lift the roof and push walls outward.

Figure 1. Effect of hurricane-force wind on building structures when window systems fail.

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CFP PAN – Lami

Hurricane and Windborne

Debris Edition 2.1

October 2008

Laminated

Glass Hurricane-

Impact and Windborne

Debris- Resistance

CODE REQUIREMENTS FOR HURRICANE-RESISTANT GLAZING

The Gulf and Atlantic states either have in place or are developing standards that require the use of hurricane windows that meet wind-borne debris protection in residential and commercial buildings. Different building codes and standards have different specific requirements and definitions pertaining to impact requirements. Summarized below are the most commonly referenced standards:

The 2000 International Building Code includes the most specific impact requirements of any model code to date. It specifies that glazing in the lower 60 ft of buildings within wind-borne debris regions must incorporate impact-resistant glazing or an impact resistant covering. The glazing must meet the requirements of an approved impact-resisting standard or ASTM E 1996 and ASTM E 1886.

Figure 2. International Building Code Basic Wind Speed Map

ASCE 7 defines “hurricane-prone regions” as having a basic wind speed greater than or equal to 110 mph. Buildings in these regions are required to have impact-resistant glazing or an impact-resistant covering in the lower 60 ft.

The Standard Building Code (SBCCI) requires wind load calculations according to ASCE 7, but a simplified method for calculating design wind loads is allowed for buildings with height less than 60 ft. The SBCCI also includes SSTD 12 “Standards for Determining Impact Resistance from Windborne Debris” which can be used along with ASCE 7 or the simplified SBCCI procedure to design a structure with impact-resistant glazing.

South Florida Building Code - Dade County Protocols. The SFBC requires wind loads to be calculated per ASCE-7, but all glazing in hurricane-prone areas (defined by county within the code) must meet the testing requirements per the Dade County protocols.

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CFP PAN – Lami

Hurricane and Windborne

Debris Edition 2.1

October 2008

Laminated

Glass Hurricane-

Impact and Windborne

Debris- Resistance

DESIGN CONSIDERATIONS FOR HURRICANE-RESISTANT WINDOW SYSTEM

There are four basic steps that comprise the design process for a hurricane-resistant window system.

1. Determine whether consideration of windborne debris is mandatory, voluntary or not needed. Examples include:

Table 1. Guidelines for Determining Windborne Debris Requirements

Table 1. Guidelines for Determining Windborne Debris Requirements

Requirement Geographic Locations Comment / Reference

Mandatory

Dade and Broward Counties of FL; Palm Beach County, FL (outside of municipalities); Palm Beach County, FL (some municipalities); residential construction in coastal counties of TX, seaward of Intracoastal Waterway (for TX Windstorm Insurance); Areas defined in ASCE 7 and 1996 BOCA National Building Code

SFBC for Dade and Broward Counties; SSTD 12-97 for Palm Beach County; Contact local building official for other FL cities; TDI 1-98 for coastal counties of TX and seaward of Intracoastal Waterway

Voluntary

Urban and suburban areas with potential for windborne debris in the form of roof gravel, roof tile, shingles, fascia, mechanical equipment and other debris from adjacent roof tops, buildings, and the general environment.

Owner/designer can cite ASTM E1886, SSTD 12-97, South Florida Building Code, TDI 1-98, or can specify site-specific criteria.

Not needed Open suburban and rural sites with no adjacent buildings or other debris sources

Should consider the potential for future development adjacent to the site.

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CFP PAN – Lami

Hurricane and Windborne

Debris Edition 2.1

October 2008

Laminated

Glass Hurricane-

Impact and Windborne

Debris- Resistance

2. Establish the appropriate debris impact criteria. Examples include:

Table 2. Guideline for Determining Debris Impact Criteria

Table 2. Guideline for Determining Debris Impact Criteria

Requirement Criteria

South Florida Building Code, Section 2315(Impact Tests for Windborne Debris); Dade County Protocols PA 201-94 (Impact Test Procedures) and PA 203-94 (Cyclic Wind Pressure Loading)

Below 30 ft.: 2 x 4 timber weighing 9 lbs. impacting end-on at 50 ft./sec. (two per specimen) Above 30 ft.: 2gm rocks impacting at 80 ft. /sec. (30 per specimen) Pressure cycles: each of above impacts followed by 9,000 cycles of pressure representing hurricane wind gusts.

SSTD 12-97: SBCCI Test Standard for Determining Impact Resistance from Windborne Debris

Large missile impact test: 2 x 4 timbers impacting end-on - -wind speed ≥ 110mph – 9 lbs. at 50 ft. /sec. - -wind speed >100 but < 110 mph – 8 lbs. at 40 ft. /sec. - -wind speed >90 but ≤ 100 mph – 4 lbs. at 40 ft. /sec. Impact each of three specimens twice (center and corner) or each of six specimens once (three center, three corner) Small missile impact test: 2 gm steel balls impacting at 130 ft. /sec. Each of three specimens receives 30 impacts in three groups of 10 (center, corner and center of long dimension). Pressure cycles: 9,000 cycles Acceptance: Three specimens from each group of three shall pass the test.

TDI 1-98: Test for Impact and Cyclic Wind Pressure Resistance of Impact Protective Systems and Exterior Opening Systems Windborne Debris

Large missile impact test: 2 x 4 timber weighing 9 lbs. impacting end-on at 50 ft. /sec. Impact each of three specimens twice (center and corner) or each of six specimens once (three center, three corner) Small missile impact test: 2 gm steel balls impacting at 130 ft. /sec. Each of three specimens receives 30 impacts in three groups of 10 (center, corner and center of long dimension). Pressure cycles: 9,000 cycles Acceptance: Three specimens from each group of three shall pass the test.

ASTM E1886-97: Performance of Exterior Windows, Curtain walls, Doors and Storm Shutters Impacted by Missiles and Exposed to Cyclic Pressure Differentials.

Large missile impact test: 2 x 4 timber weighing 4.5 – 15 lbs. impacting between 0.10 and 0.55 of basic wind speed (number, size and impact speed specified by user). Small missile impact test: solid steel ball having a mass of 2 gm impacting between 0.40 and 0.75 of basic wind speed (number, size and impact speed specified by user).

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CFP PAN – Lami

Hurricane and Windborne

Debris Edition 2.1

October 2008

Laminated

Glass Hurricane-

Impact and Windborne

Debris- Resistance

3. Select the glazing product or design concept that meets the debris impact criteria. Examples include:

Table 3. Guideline for Glazing Product Compliance with Debris Impact Criteria

Table 3. Guideline for Glazing Product Compliance with Debris Impact Criteria

Standard / Code Typical Glass Configuration

SFBC Small Missile Impact & Pressure Cycles Glass / 0.060" interlayer / Glass

SSTD 12-94,97 Small Missile Impact & Pressure Cycles Glass / 0.060" interlayer / Glass

ASTM E1996-99 Small Missile Impact & Pressure Cycles Glass / 0.060" interlayer / Glass

TDI 1-98 Small Missile Impact & Pressure Cycles Glass / 0.060" interlayer / Glass

SFBC Large Missile Impact & Pressure Cycles Glass / 0.090" interlayer / Glass

SSTD 12-94,97 Large Missile Impact & Pressure Cycles Glass / 0.090" interlayer / Glass

ASTM E1996-99 Large Missile Impact & Pressure Cycles Glass / 0.090" interlayer / Glass

TDI 1-98 Large Missile Impact & Pressure Cycles Glass / 0.090" interlayer / Glass

Table Notes: 1. Glass shall be designed according to ASCE-7 wind load requirements. 2. Use plies with different glass types to achieve differential break patterns. 3. Adequate glass bite is required. 4. Use structural wet seal or high adhesion glazing tape.

4. Qualify the concept, design or product for use. Examples include:

Table 4. Product Qualification Procedure

Table 4. Product Qualification Procedure

Impact Requirement Qualification Procedure

Mandatory

Test at certified Dade County, FL laboratory, listed SBCCI laboratory in accordance with prescribed test protocols (SFBC, SSTD 12-97, TDI 1-98), or use "approved" product listed by Dade County Office of Code compliance (www.buildingcodeonline.com)

Voluntary

Use products approved by a jurisdiction with mandatory impact requirements, test using protocols appropriate for specific design condition, or use designs accepted as "standard practice".

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CFP PAN – Lami

Hurricane and Windborne

Debris Edition 2.1

October 2008

Laminated

Glass Hurricane-

Impact and Windborne

Debris- Resistance

S e c t i o n 3 ADDITIONAL RESOURCES

INCORPORATING GUARDIAN RESIDENTIAL LOW-E INTO LAMINATED GLAZING CONFIGURATIONS

There are two ways to use low-E coatings with laminated glass –either embedded, or exposed. In this context, embedded refers to a configuration in which the coating(s) are in direct contact with the interlayer; exposed refers to coatings that are positioned facing the airspace of an IG unit. Positioning of low-E coated lites within a laminated glass configuration does not affect hurricane-resistant glazing properties; however there are thermal and aesthetic implications that should be considered when designing any laminated glazing package. The thermal performance (U-factor) improvement that is associated with the use of low-E coatings only applies to laminated configurations in which the low-E coating is exposed to a sealed airspace. When a low-E coating is embedded in a laminated configuration, the thermal performance of the configuration is approximately the same as it would be without a low-E coated lite.

Embedded and exposed coatings both provide the solar control (SHGC) benefit associated with the low-E coating; however, the resulting SHGC can vary significantly depending on the glazing configuration. An additional consideration when determining the preferred positioning of low-E coatings within a glazing system is the potential for thermal stress. Although typical combinations of glass, interlayer, and Guardian’s Residential Low-E coatings do not result in glass temperatures that are associated with thermal breakage, thermal and solar simulations should be performed by a qualified party prior to finalizing configuration design in order to fully understand the SHGC values and the potential for heat build-up within the glazing system.

Guidelines for use and positioning of Guardian’s Residential Low-E coated glass in laminated configurations are provided for reference in Table 5. Note that mock-ups are advised for aesthetic reasons with some products when they are positioned on specific surfaces, as these configurations are likely to have more pronounced color properties.

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CFP PAN – Lami

Hurricane and Windborne

Debris Edition 2.1

October 2008

Laminated

Glass Hurricane-

Impact and Windborne

Debris- Resistance

Table 5— Guidelines for use and positioning of Guardian’s Residential Low-E coated glass in laminated configurations.

Illustration LegendGlassCoatingInterlayerSpacer

Surface #2

Surface #3

Surface #2

Surface #3

Surface #4

Surface #5

Performance Plus II Yes No YesMock-up Advised

YesMock-up Advised

YesMock-up Advised

ClimaGuard 75/68 Yes No No No Yes Yes No No

ClimaGuard 71/38 Yes No YesMock-up Advised

Yes Yes YesMock-up Advised

ClimaGuard 70/36 Yes No YesMock-up Advised

Yes Yes YesMock-up Advised

ClimaGuard 55/27 Yes No Yes No Yes Yes Yes No

Performance Plus II HT No Yes YesMock-up Advised

YesMock-up Advised

YesMock-up Advised

ClimaGuard DHT No Yes Yes No YesMock-up Advised

Yes No

ClimaGuard HT No Yes YesMock-up Advised

Yes Yes YesMock-up Advised

ClimaGuard 55 HT No Yes Yes No Yes Yes Yes No

Table 5. Laminated Coated Surface Guide

Laminated (Monolithic) IGU Lami (Inboard lami lite)

Coating

Annealed or Temper-Coated

Low-E

Heat-treatable

Low-E

SELECT HURRICANE-RESISTANT GLAZING CODES AND STANDARDS

ASTM C1172 Standard Specification for Laminated Architectural Flat Glass

ASTM E1996 Standard Specification for Performance of Exterior Windows, Curtain Walls, Doors and Strom Shutters Impacted by Windborne Debris in Hurricanes.

ASTM E1886 Standard Test Method for Performance of Exterior Windows, Curtain Walls, Doors and Strom Shutters Impacted by Missiles and Exposed to Cyclic Pressure Differentials

SBCCI SSTD 12-99 Test for Determining Impact Resistance From Windborne Debris

SFBC - Dade County Protocols PA201-94 (Impact) and PA203-94 (Cyclic Loading)

TDI 1-98 Texas Windstorm Code

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CFP PAN – Lami

Hurricane and Windborne

Debris Edition 2.1

October 2008

Laminated

Glass Hurricane-

Impact and Windborne

Debris- Resistance

LAMINATED AND COATED GLAZING INSPECTION AND QUALITY STANDARDS

Table 6. ASTM C1172-03 – Maximum Allowable Laminating Process Blemishes

Central Outer Central Outer Central OuterBoil (bubble)

1/16 (1.6) 3/32 (2.4) 1/8 (3.2) 3/16 (4.8) 1/4 (6.4) 1/4 (6.4)

Blow-in; edge boil

n/aCE: 1/4 (6.4)

EE: 1/32 (0.8)n/a

CE: 1/4 (6.4) EE: 1/16 (1.6)

n/aCE: 5/16 (8.0) EE: 3/32 (2.4)

Fuse 1/32 (0.8) 1/16 (1.6) 1/16 (1.6) 3/32 (2.4) 3/32 (2.4) 5/32 (4.0)

Hair, lint (single strand)

light intensity

medium intensity

light intensity

medium intensity

medium intensity

medium intensity

Inside dirt (dirt spot)

1/16 (1.6) 3/32 (2.4) 3/32 (2.4) 5/32 (4.0) 1/8 (3.2) 3/16 (4.8)

Lint - areas of concentrated lint

light intensity

light intensity

light intensity

light intensity

light intensity

light intensity

Separation, discoloration

none none none none none none

Short Interlayer; unlaminated area chip

n/aCE: 1/4 (6.4)

EE: 1/16 (1.6)n/a

CE: 1/4 (6.4) EE: 3/32 (2.4)

n/aCE: 1/4 (6.4) EE: 1/4 (6.4)

Interlayer scuff; streaklight

intensitylight

intensitylight

intensitylight

intensitylight

intensitylight

intensity

6. Light Intensity: barely noticeable at 36 inches (914.4 mm).7. Medium Intensity: noticeable at 36 inches (914.4 mm) but not at 11 feet (3,352.8mm).8. All imperfections noted should be separated by a minium of 12 inches (305mm).

2. Central Area is defined by an oval / circle, whose axis, when centered, is <80% of the overall dimension.3. Outer Area is defined as the area outside of the central area.4. CE: covered edge of glass edge bite.5. EE: exposed edge (if CE or EE is unknown, use CE tolerance).

ASTM C1172-03 - Maximum Allowable Laminating Process Blemishes: Inches (mm)

Notes:1. Inspection must be performed with the glazing system in a vertical orientation.

Up to 25 ft.2 (2.5m2) 25 - 75 ft.2 (2.5 - 7.0m2) Over 75 ft.2 (7.0 m2)Blemish

Table 7. Quality Specifications for Coated Vision Glass

Blemish Central Area Outer Area

Pinhole 1/16" (1.6mm) Max. 3/32" (2.4mm) Max.

Spot 1/16" (1.6mm) Max. 3/32" (2.4mm) Max.

Coating Scratch 2" (50mm) max length 3" (75mm) max length

Mark / Contaminant 2" (50mm) max length 3" (75mm) max length

Coating Rub None Allowedlength + width not to exceed

3/4" (19mm)Crazing None allowed None allowed

Corrosion None Allowed None allowed

Notes:

ASTM C1376-03 - Quality Specifications For Coated Vision Glass

1. These specifications apply to cut size glass only. For specifications of stock size glass contact the manufacturer.2. The glass shall be inspected, in transmission, at a distance of 10 ft.(3m) at a viewing angle of 90 degrees to the specimen against a bright uniform background. If a blemish is readily apparent under these viewing conditions, the above criteria applies.

5. No more than two readily apparent blemishes are allowed in a 3-in. (75mm) diameter circle, and no more than five readily apparent blemishes are allowed in a 12-in. (300mm) diameter circle.

3. Central Area is defined by a square / rectangle, defined by the center 80% of the length and 80% of the width dimensions centered on a lite of glass.4. Outer Area is defined as the area outside of the central area

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CFP PAN – Lami

Hurricane and Windborne

Debris Edition 2.1

October 2008

Laminated

Glass Hurricane-

Impact and Windborne

Debris- Resistance

PERFORMANCE AND COMPLIANCE OF LOW-E ENHANCED LAMINATED GLASS CONFIGURATIONS (REFERENCE TABLE NOTES ON THE FOLLOWING PAGE)

Table 8. Performance and Compliance of Low-E Enhanced Laminated Glass Configurations

Air ArgonSmall

MissileLarge

Missile

Uncoated 1/8" annealed glass - - - - 27 24 90% 74% 0.87 1.00 n/a - -Uncoated 1/8" tempered glass + + - - 27 24 90% 74% 0.87 1.00 n/a - -

UncoatedLami glass - 2.7mm

[0.030" PVB] Lami glass - 2.7mm

+ + - - 34 30 89% 0% 0.81 1.00 n/a - -

Uncoated + + - - 34 30 89% 0% 0.80 1.00 n/a - -ClimaGuard 75/68 #3 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/aClimaGuard 71/38 #2 + + - - 34 30 70% 0% 0.41 1.00 n/a - -ClimaGuard 70/36 #2 + + - - 34 30 69% 0% 0.38 1.00 n/a - -ClimaGuard 55/27 #2 + + - - 34 30 59% 0% 0.33 1.00 n/a - -

Uncoated + + + + 35 31 88% 0% 0.79 0.98 n/a + -ClimaGuard 75/68 #3 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/aClimaGuard 71/38 #2 + + + + 35 31 70% 0% 0.40 0.98 n/a + -ClimaGuard 70/36 #2 + + + + 35 31 69% 0% 0.38 0.98 n/a + -ClimaGuard 55/27 #2 + + + + 35 31 58% 0% 0.33 0.98 n/a + -

Uncoated + + + + 35 32 88% 0% 0.78 0.96 n/a + +

ClimaGuard 75/68 #3 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/aClimaGuard 71/38 #2 + + + + 35 32 70% 0% 0.40 0.96 n/a + +ClimaGuard 70/36 #2 + + + + 35 32 68% 0% 0.37 0.96 n/a + +

ClimaGuard 55/27 #2 + + + + 35 32 58% 0% 0.33 0.96 n/a + +

Uncoated - - - - 31 26 82% 59% 0.78 0.48 n/a - -ClimaGuard 75/68 #3 - - - - 31 26 75% 46% 0.69 0.32 0.27 - -ClimaGuard 71/38 #2 - - - - 31 26 71% 24% 0.39 0.29 0.24 - -ClimaGuard 70/36 #2 - - - - 31 26 70% 30% 0.36 0.29 0.24 - -ClimaGuard 55/27 #2 - - - - 31 26 55% 18% 0.27 0.29 0.24 - -

Uncoated + + - - 31 26 82% 59% 0.78 0.48 n/a - -ClimaGuard 75/68 #3 + + - - 31 26 75% 46% 0.69 0.318 0.27 - -ClimaGuard 71/38 #2 + + - - 31 26 71% 24% 0.39 0.29 0.24 - -ClimaGuard 70/36 #2 + + - - 31 26 70% 30% 0.36 0.293 0.24 - -ClimaGuard 55/27 #2 + + - - 31 26 55% 18% 0.27 0.289 0.24 - -

Uncoated + + - - 37 31 81% 0% 0.75 0.47 n/a - -ClimaGuard 75/68 #3 + + - - 37 31 75% 0% 0.67 0.314 0.27 - -ClimaGuard 71/38 #2 + + - - 37 31 70% 0% 0.39 0.287 0.24 - -ClimaGuard 70/36 #2 + + - - 37 31 68% 0% 0.36 0.29 0.24 - -ClimaGuard 55/27 #2 + + - - 37 31 54% 0% 0.27 0.285 0.24 - -

Uncoated + + + + 37 31 80% 0% 0.75 0.466 n/a + +

ClimaGuard 75/68 #3 + + + + 37 31 74% 0% 0.67 0.311 0.27 + +ClimaGuard 71/38 #2 + + + + 37 31 69% 0% 0.38 0.285 0.24 + +ClimaGuard 70/36 #2 + + + + 37 31 68% 0% 0.36 0.288 0.24 + +

ClimaGuard 55/27 #2 + + + + 37 31 53% 0% 0.27 0.281 0.23 + +Uncoated + + + + 37* 31* 80% 0% 0.74 0.462 n/a + +

ClimaGuard 75/68 #3 + + + + 37* 31* 74% 0% 0.67 0.309 0.26 + +ClimaGuard 71/38 #2 + + + + 37* 31* 69% 0% 0.38 0.283 0.23 + +ClimaGuard 70/36 #2 + + + + 37* 31* 68% 0% 0.36 0.285 0.24 + +

ClimaGuard 55/27 #2 + + + + 37* 31* 53% 0% 0.27 0.281 0.23 + +

CPSC Cat. II

ASTM F1233 Class 1

UL 972 STC OITC

T vis %

1/8 glass [1/2" AS ]

1/4" Lami (0.090")

Monolithic Laminated Glass [5/16"]

Standard Insulating Glass Unit [3/4"]

Laminated Insulating Glass Units (3/4" OA, Laminated Glass Inboard)

1/8" annealed glass [1/2" AS]

1/8" annealed glass

1/8" glass [0.090" PVB] 1/8" glass

1/8" tempered glass [1/2" AS]

1/8" tempered glass

1/8" glass [0.030" PVB] 1/8" glass

1/8" glass [0.060" PVB] 1/8" glass

Table 8. Performance and Compliance of Low-E Enhanced Laminated Glass Configurations

Configuration

1/8 glass [1/2" AS ]

1/4" Lami (0.030")

1/8 glass [1/2" AS ]

1/4" Lami (0.060")

Monolithic Clear Glass [1/8"]Tuv% SHGC

U+Factor HurricaneCPSC Cat. I

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CFP PAN – Lami

Hurricane and Windborne

Debris Edition 2.1

October 2008

Laminated

Glass Hurricane-

Impact and Windborne

Debris- Resistance

LAMINATED GLASS CONFIGURATION TABLE NOTES

The information contained in this table is based on center-of-glass performance. Total window system simulation and testing is necessary to determine window system performance and compliance.

Thermal performance modeling must include the anticipated installation angle in order to accurately predict thermal performance.

– Indicates that the composition may not meet requirements of the test standard when annealed glass is used.

+ Indicates that the composition may provide the level of protection shown with correct installation and framing.

Information regarding CPSC Cat. I and II, ASTM F-1233 Cat.1, and UL 972 is included in Section 3.

Sound Transmission Class (STC): Expressed in laboratory-measured dB, indicating the level of sound insulation of interior construction material.

Outdoor-Indoor Transmission Class (OITC): Expressed in laboratory-measured dB, indicating the acoustic performances of exterior doors and windows.

ADDITIONAL GUARDIAN LAMINATED GLASS PRODUCT APPLICATION NOTES

Using Laminated Glass for Sound Control in Residential Applications – CFP PAN Lami Sound Control.

Using Laminated Glass for Safety and Burglary-Resistance in Residential Applications – CFP PAN Lami Safety and Burglary-Resistant.

Using Laminated Glass for Solar Control and Energy Management in Residential Applications – CFP PAN Lami Solar Control and Energy Management

Using Laminated Glass for Sloped and Overhead Glazing – CFP PAN Lami Sloped Overhead Glazing and Skylights.

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CFP PAN – Lami

Hurricane and Windborne

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Laminated

Glass Hurricane-

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Debris- Resistance

GUARDIAN MANUFACTURES LAMINATED GLASS IN THE FOLLOWING LOCATIONS

Guardian Galax

110 Jack Guynn Drive, Galax, VA 24333

Phone: (276) 236-5196

For additional information regarding storage, handling, fabrication, Limited Warranty coverage or use of any Guardian glass product, please contact the Guardian Customer Engineering Group at 888-521-9734