Table 1 Guidelines for use and positioning of Guardian s Residential Low-E coated glass in laminated configurations. Surface Surface.

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1 Section 1 GENERAL OVERVIEW 1.1 Guardian s Low-E coated glass products have been successfully laminated. However, special care must be taken during the fabrication of these products to avoid coating damage and ensure successful lamination. This note provides guidelines that will reduce the chances of damage to the coating during the laminating process. Failure to adhere to these guidelines will void the coated glass Limited Warranty. 1.2 Most of Guardian s Low-E coated glass products may be laminated with the coated surface exposed (facing the air space in final IG assembly) or embedded (facing the PVB). Please reference Table 1 for product-specific guidance regarding the positioning of Guardian coated glass products in laminated configurations. Table 1 for use and positioning of Guardian s Low-E coated glass in laminated configurations. Table 1. nated Coated Surface Guide Illustration Legend Glass Coating Interlayer Spacer Annealed or Temper-Coated Coating Low-E Heattreatable Low-E Performance Plus II Yes No Yes nated (Monolithic) Surface Surface #2 #3 Surface #2 Yes IGU (Inboard lami lite) Surface Surface #3 #4 Yes Surface #5 ClimaGuard 75/68 Yes No No No Yes Yes No No ClimaGuard 71/38 Yes No Yes Yes Yes Yes ClimaGuard 70/36 Yes No Yes Yes Yes Yes ClimaGuard 55/27 Yes No Yes No Yes Yes Yes No Performance Plus II HT No Yes Yes ClimaGuard DHT No Yes Yes No Yes ClimaGuard HT No Yes Yes Yes Yes Yes Yes Yes Yes ClimaGuard 55 HT No Yes Yes No Yes Yes Yes No No 1

2 1.3 Refer to Table 2 for product-specific edge deletion requirements in laminated glass configurations. Table 2 Edge deletion requirements for Guardian Coated Glass Products in laminated glass configurations. Table Edge-Deletion Requirements for Guardian Coated Glass Products in nated Glass Configurations. Coating nated Glass with Coating Facing IGU Airspace (Exposed) nated Glass with Coating Facing Interlayer (Embedded) ClimaGuard 75/68 Not Required 1 N/A ClimaGuard 71/38 Not Required 1 Not Required 1 ClimaGuard 70/36 Not Required 1 Not Required 1 ClimaGuard 55/27 Not Required 1 Not Required 1 ClimaGuard 63/31 Not Required 1 Not Required 1 Performance Plus II Not Required 1 Not Required 1 ClimaGuard SPF n/a n/a ClimaGuard DHT Not Required 2 Not Required 1 ClimaGuard HT Required Required ClimaGuard 63 HT Required Required ClimaGuard 55 HT Required Required Performance Plus II HT Required Required 1Not required with Guardian approved sealants when fabricated in the as-coated condition (annealed or temper-coat by Guardian). 2 Not required with Guardian approved sealants when fabricated in the post-tempered condition (tempered by a Certified Fabricator after coating by Guardian). Upon customer request, Guardian will test any specific sealants currently used in manufacture of insulating glass units. Normal testing takes weeks to complete once the units are received by Guardian. Please contact your local Guardian certification engineer for inquiries. 1.4 A color shift will be noticed when laminated and non-laminated products are used side by side (a s color shift is a normal visual attribute of coated laminated products). s must be generated for visual comparison and approval. 1.5 Inspection and quality control procedures must be performed after each step in the fabrication process, as outlined in the Guardian s Low-E certification checklist(s). The following tables indicate the products available and their corresponding configurations. 2

3 Section 2 SURFACE APPLICATION 2.1 Guardian s Low-E coated glass products were designed to enhance the overall aesthetics and performance of laminated glass. However, thermal performance will diminish after laminating when the coating is in contact with the interlayer. Guardian can assist its customers in predicting thermal performance based on application. 2.2 The instructions in this note will focus on the technique of bonding a polyvinyl butyral (PVB) interlayer between two pieces of glass under heat and pressure to form a bonded laminate. Guardian has limited experience with the use of liquid resins in laminating Guardian s Low-E coated glass products and requires that they be used with caution. Compatibility testing must be performed before using resin products. 3

4 Section 3 COATING DETECTION 3.1 Upstream processes, such as cutting, edge grinding and washing, must be properly performed in order to prevent damage to the coated surface prior to laminating. More information on these processes can be found in Guardian s Coated Glass Products Fabricator User s Guide. 3.2 Detection of the coated surface is a critical step in correctly processing Guardian s low-e coated glass products. The user must establish which surface has been coated: When opening incoming packaging (packing tags will indicate the orientation of the coated surface within the packaging; however, detection using one of the methods outlined below is necessary) When moving glass or before any subsequent processing of the glass. 3.3 Common Methods for Detection Commercial Coating Detector (Figure 1) Guardian requires a coating detector that does not utilize metal contacts. Metal contacts may scratch the coating. Detectors, such as the one pictured, can be obtained from EDTM, Inc., in Toledo, OH, via their Web site ( Detectors are also available from MLM Enterprises in Walbridge, OH, via their Web site ( Figure 1. Commercial Coating Detector 4

5 3.3.2 Ohmmeter Detector (Figure 2) Set an ohmmeter on a high-resistance setting (e.g., Rx 10,000). Contact the glass surface near the extreme edge only, with the positive and negative terminals approximately 1 (25 mm) apart. A meter reading registers if the terminals are contacting the coated surface. No reading registers if they are contacting the uncoated surface. This method may scratch the coated surface. Figure 2. Ohmmeter Detector 3.4 Sputter-coated films do not have the surface roughness of pyrolytic films and cannot easily be felt. Touching the coated surface with bare hands or with gloves is not a reliable method to detect the coated surface. Also, skin oils are difficult to remove and can damage the coated surface after exposure. 3.5 Guardian offers ClimaGuard HT, 63 HT and 55 HT with Temporary Protective Film (TPF) on the coated surface. TPF must remain on the glass through cutting, seaming, washing, assembly (if coating exposed) and removed just prior to entering heating ovens (for laminated annealed products) or the heat-treating furnace for heat-treated products TPF is discussed in detail in the Guardian Product Application Note, Temporary Protective Film (TPF). 5

6 Section 4 FABRICATION 4.1 General Fabrication Prior to fabrication, a Guardian Field Customer Engineer (FCE) must conduct a certification audit of the customer s facility Handling, cutting, washing and heat treating must be done in accordance with requirements set forth in Guardian s Coated Glass Products Fabricator User s Guide in order to prevent damage to the coated surface prior to lamination. Processing Guardian s coated glass products with the coating facing down will damage the coating Guardian s heat-treatable low-e coated products may be tempered, heat strengthened or bent prior to laminating. For information on heat treating and bending these products, please refer to the Guardian Product Application Notes, Heat-Treatment, and Bending Requirements Flammable liquids must not be used during the cutting of laminated product and will void Guardian s coated warranty If glass must be placed on racks for movement to the next process after cutting, the preferred methods of separation are to use foam-covered or cork-covered tabs, with the static side facing the coated surface, or to use polyfoam strips/sheets If A-Frames are used, like sizes must be stacked together Different sizes must be separated by cork or foam tabs, or poly foam strips (see section 10.0, INTERLEAVING MATERIALS in this User s Guide for more information on glass separation when transporting) Harp racks should be avoided when handling Guardian coated glass products, however, if they must be used: Harp racks must be clean and well maintained Avoid sliding the coated surface against the harp cords. 6

7 Never put more than one lite per slot ClimaGuard HT Series Products must not be placed into harp racks without Temporary Protective Film (TPF). 4.2 Washing This section applies to all mechanical washing applications, such as tempering, insulating, laminating, etc. for Guardian coated glass products The coated surface must always face up (away from conveyor rolls, felt covers or roller balls) during washing to avoid the possibility of glass splinters and chips scratching the glass surface. Refer to Section 2.0, APPROVED COATED SURFACE DETECTION METHODS in this User s Guide for more information Proper fabrication techniques must be followed in all processing of Guardian coated glass products. Refer to Section 5.0, PROPER FABRICATION TECHNIQUES in this User s Guide for more information ClimaGuard HT Series products supplied with Temporary Protective Film (TPF) can be washed similarly to standard clear float glass, provided that the TPF remains on the surface. For all other Guardian coated glass products (or for ClimaGuard HT Series coatings where the TPF has been removed), the fabricator must follow the precautions outlined in this section of the User s Guide The coated surface must not be touched when loading or unloading the washer. Contact must be made only with the uncoated surface or at the edges of the lite as shown below Proper setup of the washer is critical for all glass products, especially low-e coated glass. Due to a contrast in transmission, damage 7

8 caused by the brushes that may not be visible in non-coated glass, can be seen in coated glass Low-E brushes are required for washers processing Guardian coated glass products. The low-e brushes must not be damaged or worn and must be adjustable and positioned to minimize contact with the coated surface. Low-E brushes are specified as brushes having the following characteristics: Bristle diameter between in in. (0.15mm- 0.20mm) Made from 6-6 Nylon or similar soft material that has high water absorption Trim height of 2 in /8 in. (50mm-60mm) Uniform density When spot cleaning is required, use mild, fast-drying household glass cleaners. Dab or blot the surface (avoiding wiping) with a clean, soft cloth to remove any excess cleaning solution. Do not wipe the surface, as this may damage the coating. Approved cleaners are: General purpose cleaners such as Windex or equivalent A mixture of approximately 10% ammonia and 90% tap water A mixture of approximately 50% isopropyl alcohol and 50% tap water Close inspection of the coated glass following the washing process is required. Guardian recommends that sufficient inspection ing be available at the exit of the washer system to assist in the easy detection of damage to the coating and of inconsistencies with the washing cycle For additional information regarding the required and recommended procedures for washing Guardian coated glass products, please refer to Section 8, Machine Washing of Guardian s Coated Glass Fabricator User s Guide. 8

9 Section 5 LAMINATING 5.1 General Multiple-layer PVB constructions require slower line speeds to properly de-air One-layer PVB laminate has two surfaces to de-air Two-layer PVB laminate has four surfaces to de-air and requires a slower nip speed Three-layer PVB laminate has six surfaces to de-air, requiring the lowest nip speed Guardian s Low-E coated glass products can be incorporated into a laminated glass unit using one of the following configurations: With the coating facing the insulating glass airspace (this is also known as an exposed application) -- see Figure 4 Coated Surface Figure 4. nate Construction Exposed Coating The exposed construction (Figure 4) is the most challenging construction from which to obtain sufficient PVB temperature, as radiant energy is reflected off the top surface Increase the top heat percentage to full to overcome efficiency of coating Decrease the bottom heat percentage to harmonize bottom-surface temperatures to top. Otherwise, bottom PVB temperature will overheat, resulting in trapped air Adjust line speed to achieve proper target nip temperature of C ( F). 9

10 5.1.4 With the PVB sheet facing the coated surface (this is also known as an embedded application) -- see Figure 5 Coated Surface Figure 5. nate Construction Embedded Coating The embedded construction shown below makes it easier to obtain sufficient PVB temperature, as heat penetrates the body of the top lite. In this construction, the coating reflects the oven s energy back through the body of the glass. Hence, the top PVB surface receives the majority of its heat from conduction Increase the top heat percentage, biasing to a higher percentage than the bottom Decrease the bottom heat percentage to harmonize bottom surface temperatures to top. Otherwise, the bottom PVB temperature will overheat, resulting in trapped air Adjust the line speed to achieve proper target nip temperature of C ( F). 5.2 Clean Room, Assembly and Trimming Operations A complete visual inspection of transmission and reflection must be performed prior to assembly of glass and interlayer materials Assembly must be conducted in a clean-room -type environment. Contaminants trapped within the interior of the unit may be objectionable Required Clean Room Conditions: Relative humidity of 23-25% for maintaining the appropriate PVB moisture level Maintained temperature range of C (60-70 F) Full gowning of personnel in lint-free coveralls, gloves, shoe covers and hairnets. 10

11 5.3.4 Minimize the exposure time of cut PVB sheet(s) prior to assembly Using a sharp instrument (which should be replaced often), trim excess material with even pressure, taking care not to pull the PVB or chip the edges of the glass The roll-body surfaces of the nip rolls must be clean and capable of applying uniform pressure Perform a complete visual inspection of reflection after assembling glass and interlayer materials to inspect for any damage the nip roll might have caused to the coated surface Take care to minimize contact with the coated-surface after the nip roll and prior to racking for the autoclave. 5.4 Tack Oven and Nip Roll Operations Adjust line speed and/or tack oven controls to achieve proper laminate temperature at nip roll of C ( F) using a contact style temperature-measuring device Bias temperature settings to equalize top- and bottom-surface temperatures of the laminate Proper tack oven/nip operations will result in the laminate having a homogeneous grayish color appearance throughout the laminate as it exits the final nip roll assembly with a clear perimeter border and no air entrapment or tracking. 5.5 Autoclave Operations The required temperature set-point is between C ( F). The required pressure set-point is between bar ( psi) Due to the reflective properties of Guardian s Low-E coated glass products, a sly longer autoclave residence (balance or hold) time may be required when laminating these products. A minimum of 30 minutes hold or balance time is required after both set-points are reached; ensuring that the PVB interlayer has achieved proper autoclave temperature Each laminate must be separated by an appropriate air space to ensure proper heat transfer Pressure must be released when the laminate temperature is below 49 C (120 F). Otherwise champagne bubbles may appear around perimeter of laminates when removed from autoclave. 11

12 5.5.5 Guardian s coatings are not pressure sensitive and will not be harmed by the atmosphere within a well-maintained autoclave CAUTION: Use of clean/dry compressed air is mandatory along with ensuring the autoclave is free from plasticizer residue. 12

13 Section 6 QUALITY SYSTEMS AND INSPECTION CRITERIA 6.1 Guardian endorses the latest edition of the following industry standards and specifications: ASTM C 1048 Standard specification for heat-treated flat glass ASTM C 1172 Standard specification for laminated architectural flat glass. ASTM C 1376 Standard specification for pyrolytic and vacuum deposition coatings on glass ASTM E 1886 Standard test methods for glazing, shutters and doors impacted by missiles and cyclic pressures ASTM C 1996 Standard specification for impacts from wind-borne debris in hurricanes ASTM F 521 Standard test methods for bond integrity of transparent laminates ASTM F 588 Standard test methods for forced-entry resistance ASTM F 1233 Standard test methods for security glazing materials and systems ASTM F 1642 Standard test methods for glazing and systems subjected to air blast loadings Dade County, FL Comprehensive Building Code for Resistance to Windborne Debris from Hurricanes SCCI_STD 12 (Southern Building Code Congress International) TDI 1-98 (Texas Department of Insurance) Gulf Coastal Regions ANSI Z 97.1 Standard specification for safety glazing materials used in buildings, safety performance specifications and methods of test CPSC 16/CFR 1201 Safety standard for architectural glazing materials NIJ National Institute of Justice Ballistic Performance GSA TS Air Blast Resistance GANA nated Glass Design Guide 13

14 6.2 A diffused source gives the fabricator the ability to simulate normal day conditions. The source is essential for inspecting transmission and reflection of Guardian s coated glass products. An example of a common source is displayed in Figure 6. Figure 6. Common Artificial Light Source and Reflection Setup 6.3 The area of most importance during visual inspection of Guardian s Low-E products is the Central Viewing Area. The Central Viewing Area is defined as 80% of the length and 80% of the width dimensions, centered on a lite of glass. The remaining area is considered the outer area. An example of the Central Viewing Area of a lite that is 2540 mm (100 in.) by 1016 mm (40 in.) is shown in Figure 7. Figure 7. Central Viewing Area Diagram 14

15 Section 7 VISIBLE INSPECTION GUIDELINES 7.1. Pinholes and Clusters (in Transmission see Figure 8) Pinholes up to 1.5 mm (1/16 in.) are acceptable Clusters of pinholes within the Central Viewing Area and visible from 3 m (10 ft.) are not acceptable Clusters greater than 0.82 mm (1/32 in.) and visible from 3 m (10 ft.) are acceptable only outside the Central Viewing Area A pinhole cluster is defined as two or more pinholes of 0.82 mm (1/32 in.) located in an area of 76 mm (3 in.) diameter per ASTM C Scratches (in Transmission See Figure 8) When glass is viewed at a distance of 3 m (10 ft.), visible hairline scratches longer than 51 mm (2 in.) within the Central Viewing Area are not acceptable per ASTM C Figure 8. Visual Inspection of Transmission (Light Source Behind Glass) 7.3 Uniformity (in Reflection See Figure 9) When viewed from a distance of 3 m (10 ft.) or greater, coated glass may exhibit a sly different hue or color that may not be apparent in hand samples. Figure 9. Visual Inspection of Reflection (Light Source Behind or Above Inspector) 15

16 LAMINATED GLAZING INSPECTION AND QUALITY STANDARDS Table 3. ASTM C Maximum Allowable Process Blemishes ASTM C Maximum Allowable Process Blemishes: Inches (mm) Blemish Boil (bubble) Blow-in; edge boil Up to 25 ft. 2 (2.5m 2 ) ft. 2 ( m 2 ) Over 75 ft. 2 (7.0 m 2 ) Central Outer Central Outer Central Outer 1/16 (1.6) 3/32 (2.4) 1/8 (3.2) 3/16 (4.8) 1/4 (6.4) 1/4 (6.4) n/a CE: 1/4 (6.4) EE: 1/32 (0.8) n/a CE: 1/4 (6.4) EE: 1/16 (1.6) n/a CE: 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) Inside dirt (dirt spot) Lint - areas of concentrated lint Separation, discoloration Short Interlayer; unlaminated area chip Interlayer scuff; streak medium medium medium medium 1/16 (1.6) 3/32 (2.4) 3/32 (2.4) 5/32 (4.0) 1/8 (3.2) 3/16 (4.8) none none none none none none n/a CE: 1/4 (6.4) EE: 1/16 (1.6) n/a CE: 1/4 (6.4) EE: 3/32 (2.4) n/a Notes: 1. Inspection must be performed with the glazing system in a vertical orientation. 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). 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). CE: 1/4 (6.4) EE: 1/4 (6.4) 16

17 COATED GLAZING INSPECTION AND QUALITY STANDARDS Table 4. Quality Specifications for Coated Vision Glass ASTM C 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 Allowed length + width not to exceed 3/4" (19mm) Crazing None allowed None allowed Corrosion None Allowed None allowed Notes: 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. 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 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. Table 5. Quality Specifications for Coated Overhead Glass ASTM C Quality Specifications For Coated Overhead Glass Blemish Central Area Outer Area Pinhole 3/32" (2.4mm) Max. 1/8" (3.2mm) Max. Spot 3/32" (2.4mm) Max. 1/8" (3.2mm) Max. Coating Scratch 3" (75mm) max length 4" (100mm) max length Mark / Contaminant 3" (75mm) max length 4" (100mm) max length Coating Rub length + width not to exceed length + width not to exceed 3/4" (19mm) 3/4" (19mm) Crazing None allowed None allowed Corrosion None Allowed None allowed Notes: 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 15 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. 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 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. 17

18 Section 8 GLAZING PRECAUTIONS 8.1 Guardian s Low-E coated glass products must be placed within the interior of either a laminated or a hermetically sealed, insulating glass unit. Any other orientation will void the Guardian s Low-E warranty. 8.2 As with any laminated application, the edges of the Guardian s Low- E coated glass laminated unit must not be exposed to prolonged contact with moisture or any incompatible sealant. 8.3 When laminated, U-Values of Guardian s Low-E coated glass products will vary, dependant on the angle of slope. The Guardian Customer Engineering Group can assist with predicting performance change as a function of slope. The Customer Engineering Group can be reached at (888)

19 PERFORMANCE AND COMPLIANCE OF LOW-E ENHANCED LAMINATED GLASS CONFIGURATIONS (REFERENCE TABLE NOTES ON THE FOLLOWING PAGE) Table 6. Performance and Compliance of Low-E Enhanced nated Glass Configurations Table 6. Performance and Compliance of Low-E Enhanced nated Glass Configurations ASTM Configuration CPSC CPSC F1233 UL Cat. I Cat. II Class STC OITC Air Argon Small Missile Monolithic Clear Glass [1/8"] Uncoated 1/8" annealed glass % 74% n/a - - Uncoated 1/8" tempered glass % 74% n/a - - Monolithic nated Glass [5/16"] glass - 2.7mm Uncoated [0.030" PVB] % 0% n/a - - glass - 2.7mm Uncoated % 0% n/a - - ClimaGuard 75/68 #3 1/8" glass 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/a ClimaGuard 71/38 #2 [0.030" PVB] % 0% n/a - - ClimaGuard 70/36 #2 1/8" glass % 0% n/a - - ClimaGuard 55/27 # % 0% n/a - - Uncoated % 0% n/a + - ClimaGuard 75/68 #3 1/8" glass 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/a ClimaGuard 71/38 #2 [0.060" PVB] % 0% n/a + - ClimaGuard 70/36 #2 1/8" glass % 0% n/a + - ClimaGuard 55/27 # % 0% n/a + - Uncoated % 0% n/a + + ClimaGuard 75/68 #3 1/8" glass 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/a ClimaGuard 71/38 #2 [0.090" PVB] % 0% n/a + + ClimaGuard 70/36 #2 1/8" glass % 0% n/a + + ClimaGuard 55/27 # % 0% n/a + + Standard Insulating Glass Unit [3/4"] Uncoated % 59% n/a - - ClimaGuard 75/68 #3 1/8" annealed glass % 46% ClimaGuard 71/38 #2 [1/2" AS] % 24% ClimaGuard 70/36 #2 1/8" annealed glass % 30% ClimaGuard 55/27 # % 18% Uncoated % 59% n/a - - ClimaGuard 75/68 #3 1/8" tempered glass % 46% ClimaGuard 71/38 #2 [1/2" AS] % 24% ClimaGuard 70/36 #2 1/8" tempered glass % 30% ClimaGuard 55/27 # % 18% nated Insulating Glass Units (3/4" OA, nated Glass Inboard) Uncoated % 0% n/a - - ClimaGuard 75/68 #3 1/8 glass % 0% ClimaGuard 71/38 #2 [1/2" AS ] % 0% ClimaGuard 70/36 #2 1/4" (0.030") % 0% ClimaGuard 55/27 # % 0% Uncoated % 0% n/a + + ClimaGuard 75/68 #3 1/8 glass % 0% ClimaGuard 71/38 #2 [1/2" AS ] % 0% ClimaGuard 70/36 #2 1/4" (0.060") % 0% ClimaGuard 55/27 # % 0% Uncoated * 31* 80% 0% n/a + + ClimaGuard 75/68 #3 1/8 glass * 31* 74% 0% ClimaGuard 71/38 #2 [1/2" AS ] * 31* 69% 0% ClimaGuard 70/36 #2 1/4" (0.090") * 31* 68% 0% ClimaGuard 55/27 # * 31* 53% 0% T vis % Tuv% SHGC U+Factor Hurricane Large Missile 19

20 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. 20

21 Section 9 ADDITIONAL INFORMATION 9.1 Every effort has been made to ensure the accuracy of the information in this document. This information is intended to assist in the proper application and use of Guardian coated glass products and does not constitute a warranty for any particular purpose. The only warranties offered by Guardian on coated glass products are Guardian s published Coated Glass Limited Warranties. 9.2 For additional information or technical support with any coated glass products, please contact Guardian s Customer Engineering Group at Guardian nated Glass Product Application Notes Using nated Glass for Sound Control in Applications CFP PAN Sound Control Using nated Glass for Safety and Burglary-Resistance in Applications CFP PAN Safety and Burglary-Resistant Using nated Glass for Solar Control and Energy Management in Applications CFP PAN Solar Control and Energy Management Using nated Glass for Sloped and Overhead Glazing CFP PAN Sloped Overhead Glazing and Skys Using nated Glass for Hurricane-Impact and Windborne Debris-Resistant Applications CFP PAN Hurricane and Windborne Debris. 21