Clear glass u value. 96 ComfortPlus¹ Light Grey (#4) 10.
- Clear glass u value All values are centre of glass. 7 158 • Do not use glass with very low U value and moderate SHGC. Determination of energy balance value. 5. 885 W/m²·K. Emirates Float Glass-Product range offers Architects & Customers a wide choice to meet varying performance criteria distinct aesthetic appeal. Also known as a “softcoat”, this evolution of technology and innovation sees atomic VFloat™ is the starting point in our range of Australian-made glass products. 64 Clear Radiance Plus Clear LC 49/32 46 20 13 31 0. Argon. ThermoTech™ E Clear Glass Performance: Effective U-value calculator. 800 Park Drive , Owatonna , MN 55060 US | (800) 533-2080 This table compares Vitro Architectural Glass product performance data when assembled in a one-inch (25 mm) insulating glass unit with a ½-inch (13 mm) air space and two ¼-inch (6 mm) lites. Clear. 8 0. Both the Glasses performed identical in terms of achieving the optimal lux levels. This To calculate R-value, divide 1 by the U-value figure. 94 0. More. 3 . a glass may be with lower SHGC but higher U-value than another glass. 86 Vacuum coated glass is available in laminated form with the coating on the inside to protect it from damage. As Clear as regular clear float glass with the same high Clarity and high Visible Light Transmittance (VLT) that maximises natural light entering inside and filling your space. Air. SHGC (Solar Heat Gain Coefficient). • Lower U-values mean higher performance • Reduces furnace heat loss • Helps reduce heating energy costs U-Value 0. 1. Visible Light. 38 54 3. If positive the glass is showing a loss of heat and a negative value the glass is letting in more heat than it is losing. 76mm SuperClear 10. 8 347 Solar Control Glass 35% 2. Insulglass ® Benefits*: • Superior Insulation compared to anything single glazed (low U-Value) GLASS: Guardian Clear Glass (Middle East & Africa) Glass, 4mm. Units (IGU) consist of 2 or more pieces of glass manufactured as one unit with a trapped air gap separated by a desiccant filled spacer bar and sealed with a primary and secondary seal for structure and guaranteed performance. As the U-value decreases, so does the amount of heat that is transferred through the glazing material. Oct 26, 2021 · Clear Glass (VLT = 78%) and the high performance glass (VLT = 21%). Selectivity – Glass selectivity is an It is easy and intuitive to use this online calculator. kg/m²] A1-A3. 0. ” Single Glazed 6mm Clear IGU 4mm Clr/10mm Air/4mm Clr U or Uw Value SHGC/w U or Uw Value SHGC/w Glass ONLY 5. CENSolutions CMS Quality Marks 4mm Planitherm Total+ (1. 90 (90%) and the visible light reflectance of it is around 0. Reflectance Aug 3, 2021 · Solar Control Low-E Glass Standard Clear Insulating Glass Solarban® 60 (2) Insulating Glass U-Value 0. 4mm K Glass. 8 535 Tinted 45% 2. Laminated glass is a safety glass product and can be used in insulating (double What are Double Glazing U-Values, How are they calculated and do all the figured meen the same? 4mm K Glass. 02 while a 1” (25mm) insulating glass unit made with clear glass and with no coatings of any kind has an approximate winter nighttime U-Value 0f . 00 Clear Glass (VLT = 78%) and the high performance glass (VLT = 21%). Heat strengthening increases the strength of annealed glass; however, it is not a U-values measure a window’s thermal conductivity, or how quickly heat transfers through it. The U-value, SHGC and shading coefficient of a glass is strongly dependent on the glass surface emissivity. Solarban ® 60 Starphire ® Glass. So called 'Low-emissivity' or 'Low E' glass offers improved thermal insulation denoted by very low U-values. 12 Note: Tdw-ISO represents potential fading damage caused by both UV and visible light. • Do not use glass Legend: 1-Clear float, 2 – Bronze Tint, 3 – Grey tinted, 4- Green tinted, 5- Clear Reflective, 6- Bronze Reflective, 7- Grey Reflective, 8- Green Feflectiv. The U-value will be the same for that glass regardless of the window the glass is in Glass Type: U-value: SHGC: VLT: Clear Laminated Glass: 5. • Do not use glass – single glass pane and later double-pane clear glass – do a poor job of keeping out the cold and excessive heat. The lower the number is, the better the insulating qualities of the glass. 31 U-Value 0. 53 1. The U-Value of a window or door is determined by the overall construction of the opening including the glass, frames, seals and any spaces in the The U-Values for spandrel glazing are the same as the corresponding vision unit. U-values. The lower the U-value, the greater a window’s • Clear glass. The spandrel The Effective U Value, or energy balance value, is a revised U value allowing for solar gain. 69 1. Department of Therefore, R-Value multiplied by U-Value always equals 1. The lower the U-Factor, the better the window insulates. Two 4mm sheets of basic clear glass might have a G-value of 0. With RHG, it is convenient to use a single value to evaluate glass thermal performance in The U-Value measures the level of conductivity. K) A measure of the air-to-air heat transfer due to thermal conductance and the difference in indoor and outdoor temperatures. 70: 1. Superior Insulating Performance. 0 W/m²K. 25 SHGC 0. 5: U-Value was determined as per EN 673 SSG Singapore Safety Glass Pte Ltd is certified to ISO 9001, AS 2208:2023, AS/NZS 2208, AS 4666, NZS 4223. GLASS: Guardian Clear Glass (Middle East & Africa) Glass, 4mm. The importance of U-values depends on the outdoor temperature difference. 7: 0. U-value (thermal transmittance) U-value is also called U-factor in the NFRC Oct 3, 2022 · An insulating glass unit comprising 4 mm Pilkington Optifloat™ Clear outer pane, 16 mm argon gas-filled cavity and 4 mm Pilkington K Glass™ inner pane has a centre pane U value of 1. Here, 0. 2. 87 is the nominal SHGC of a clear glass. Materials with very different U-values that are used to make a unit like a window can reduce the unit’s overall ability to stop the transfer of heat. 20. 45 The visible light transmittance of an uncoated clear glass is around 0. 65 The glazing on the glass has its own U-value. With exceptions, vacuum coated products generally have better SHGC’s (reflective glass) and lower ‘U’ values (low-E glass) than pyrolytic products. 8 w/m2K. 61 Jan 18, 2022 · The U-values are winter night formulations, expressed in units of Btu/(hr·ft²·F). With VLT and the look being the same as standard Clear glass you maximise clarity and yet achieve 30% better Solar Control than standard 4mm Clear glass. Shading coefficient is a relative scale in comparison with a clear glass. What is a U-Value? A U-Value is the rating of energy efficiency of your double glazed unit. 68: 6mm thick grey tinted glass: BRZ The lower the G-value, the less the conservatory will overheat during the summer months. 38mm: 5100mm When the gas layer increased from 1mm to 9mm, the U value decreases by 37% for clear insulated glass , and the U value decreases by 53% when the Low-e is applied. For example, a U-value of 0. 2. Visible Light Transmittance: 35%: Visible Light Reflectance (out) 15%: 0. An insulating glass unit comprising 4 mm Pilkington Optifloat™ Clear outer pane, 16 mm argon gas-filled cavity and 4 mm Pilkington Optitherm Energy Efficient Insulation (low U-Value). 4 (40%). Even a standard window with double pane glass will vastly improve performance (a standard clear insulated glass unit has a . 62: 44%: Green Laminated Glass: 5. 76 Visible Light 81% 59% UV Tdw-ISO 0. U Value. An insulating glass unit comprising 4 mm Pilkington Optifloat™ Clear outer pane, 16 mm argon gas-filled cavity and 4 mm Pilkington K Glass™ S inner pane has a centre pane Clear Glass (VLT = 78%) and the high performance glass (VLT = 21%). How to measure the U value. 73: 72% *Based on 6. 76, 12. 29. . U-Value 5. Product Name: Thickness: Stock Size: ComfortPlus¹ Clear: 6. Now, in the above-noted code requirements, we had a window U-value To calculate R-value, divide 1 by the U-value figure. Performance summary of 6mm SSG ® A35/15 Low E #2 + 12mm Airspace + 6mm Clear. It is measured in watts over m2 per degree Celsius (w/m2°C). • Tinted glass: This glass is best used to reduce solar heat gain in hot climates. 6mm thick clear glass: BRZ-006-01: 6Clr: 6. Solarban ® 60 Starphire ® glass can help you achieve your design vision of a glass building with the ultimate in transparency and Allows high level of visible light transmittance and exterior clear glass appearance: U-Value: 0. It can also be referred to as an ‘overall heat transfer co-efficient’ and measures how well parts of a building transfer heat. 49. Summer day U-value. Winter and Summer U-Values are the only performance values available for spandrel glazing. 5mm Sightline Overall Thickness: 14. Lower U-values mean slow heat transfer and higher U-values indicate fast transfer. The visible light transmittance of an uncoated clear glass is around 0. It may be our base range, but it’s anything but basic. 76, 8. 929 Btu/hr·ft²·F. When spacer thickness over 14mm, the U value of the argon-filled glass has a slight rise. Measured against windows assembled with ordinary clear glass, Solarban ® 60 glass What is a U Value? U Value is A measure of air-to-air heat transmittance (loss or gain) due to thermal conductance and the difference in indoor and outdoor temperatures. The result is an average rate of heat loss or gain for the period over when (DGU 6-12air-6 Clear) Solar Factor (%age) U-Value (W/M2. While a bigger R-value is better, the opposite is true of U-values. 67. Clear Glass, in fact, caused glare is certain portions of the building. SHGC, shading coefficient, and U-value are the 3 important glass thermal properties influencing building envelope energy efficiency. U Value – Thermal Conductivity – measurement unit is watts per m2 per degree celcius (W/m2°C) and is a measure of the rate of heat gain or loss through glazing due to environmental differences between outdoor and indoor air. Glass U-value is important in winter conditions, due to the large indoor/outdoor temperature difference in In addition to functioning with clear glass, Solarban ® 60 glass also can be combined in insulating glass units (IGUs) with an outboard lite of tinted or reflective-tinted glass to increase aesthetic and performance options. 60 0. The U-value is the overall heat-transfer coefficient; a numerical expressio Windows with clear single-pane glass can't achieve the ratings necessary to qualify for ENERGY STAR labeling. Glass Type Emissivity (low‐e) U‐Value* (air) U‐Value* (argon) Clear 0. Light to Solar Gain. The PFG range of acoustic laminated glass is branded Soundprufe. 55 Visible Light 72% U-Value 0. Solar Heat Gain Coefficient 0. 4mm Clear. 10 equals an R-value of 10 (1 divided by 0. A unique glass, SGG Horizon series, comes with extremely low internal reflections enabling clear vision during the day as well as night. 2W/ m 2 °C, on a winter’s night when it is 15°C colder outside compared with indoors, the heat loss through the windows would be: 6. 60 (3)(5) glass is more than 61% better than standard clear insulating glass. glass performance diagram definitions 0 SHGC = Solar heat gain co-efficient; A U-value is the inverse of an R-value. 77 048 Series Awning Window 6. 38mm interlayer). • High-solar-transmittance/gain (low-e) glass: This By referring to “glazing elements”, 3. Performance Calculations In this section, we will explore the difference between two of the most significant glass performance measures; U-Value and R-Value. It is nowadays redundant to scale SHGC by 0. 74: 0. U-VALUE The U-value NRG Lite 1- performance data based on 6. 5?? w/m2K. 07: and center of glass U‐values for various Vitro glass products. 82 2. 4. The Relative Heat Gain is the amount of heat transferred through glass or a For example, if your home has 70 m 2 of glazing with aluminium frames and clear glass with a U value of 6. 2 W/m 2 K. In other words, it measures the non-solar heat gain or loss. It is expressed as Watts per square metre Kelvin W/m2 K. Reflectance outside (ρv) 9 %. U value is - U-Values are quoted in W/m2/K, rounded down to the nearest 0. Coating Density N/A. Column 7: Whole-window U-value (Uw) that accounts for the performance of the frame, edge-of-glass and centre-of-glass components. Within ∓ 10% ≤ to Shading:. Note: Measurement of improved U-values are calculated using a baseline of a Double Low-e 1” IGU Solarban ® 70 (2) Clear + Clear 1” with The centre pane U-value of the above specifications when incorporating inner panes of clear glass and argon filled warm edge cavities is 1. Less than or equal to. The spandrel color does not impact U-Value. 38 & 12. The U-value of a window is a measurement of the rate of heat loss indicating how well your windows are keeping valuable heat in. Sungate ThermL™ glass is a low-e coating engineered for use on the interior surface of a typical one-inch insulating glass unit (IGU) that dramatically improves U-values when paired with any Solarban® solar control low-e glass by Vitro on the second surface. 980. Clear 6. 2: 0. 48 SHGC 0. If you are not sure, U value, in simple terms, is the measurement of heat loss in a glass and the rate at which the heat is lost. Glass Type. Calculated Values are in accordance with NFRC2010. Enter a keyword for product Sep 2, 2022 · type) may also result in U-Value and SHGC variations. Solar Control Low-E Glass Standard Clear Insulating Glass Solarban® 60 (2) Insulating Glass U-Value 0. All performance data is calculated using LBNL Window 7. 20 to 1. 38mm Glass Only Values; Total window; Heat Strengthening. ) Uncoated glass is assumed to have a normal emissivity of 0. 7 0. 47 0. 05 PPG Monolithic Glass Comparisons U-Value5 EN 673 (W/m2*K) Table of Performance Values*1 Glass Thickness Transmittance2 Reflectance2 What are Double Glazing U-Values, How are they calculated and do all the figured meen the same? 4mm K Glass. The gas mixture is assumed to consist of 90% argon and 10% air. The industry still uses shading coefficient mainly for the purpose of backward compatibility. float glass is used to produce PFG’s value-added products – specifically our market-leading laminated safety glass, mirrors at the ISO 14001 PFG mirror plant, and automotive standard and acoustic clear and tinted PVB interlayers. 11. NRG Lite 1- performance data based on 6. 25 1. Uw is calculated for the standard sizes given in Table 1. - For multi cavity and low-E combinations please contact Customer Services. To calculate U-value, divide 1 by the R-value—a 3. Calculation method’, and gives some guidance by evaluating the balance of heat loss and useful heat gain by solar radiation entering the building through the glazing. It indicates the performance of the glass based on its ability to retain heat and not let it pass through the windows. 65 Clearvision Clear LC 39/29 36 24 11 28 0. It is the responsibility of the glass fabricator to ensure that the intended application is appropriate and complies with all relevant laws, regulations, standards, codes of practices, processing guidelines and other requirements. Visible Light Transmission 88. 25: Insulates as much as 48% better than standard clear insulating glass: Ultraviolet Energy: 58%: 13%: Blocks 45% of UV energy, a common contributor to fabrics, carpet and furniture fading : Damage Weighted Transmittance * 0. 38mm: 5100mm x 3210mm: ComfortPlus¹ Clear: 10. U Value – Measurement rate of heat gain or loss through the glass due to environmental differences between outdoor and indoor air. ComfortPlusTM - Oceania Glass The U-values are winter night formulations, expressed in units of Btu/(hr·ft²·F). 38mm laminated glass (3mm panels with 0. For example, a common brick veneer wall with timber stud, plasterboard, and R2 insulation batts has a total system R U-Value % % % % W/m2K 6 mm Solar Control Low E Glass - 12 mm (Air Gap) - 6 mm Clear Essence (Low E Glass) Clearlite Plus Clear LC 54/37 52 15 12 36 0. 18: U-Value (W/m²K) 1. Department of U-Value SHGC Shading Co. 8 275 Solar Control Low E Glass 20% 1. All glass which requires extra strength and thermal resistance will be heat strengthened. 4 U-Value = 76% better Insulation than 60 (3)(5) glass is more than 61% better than standard clear insulating glass. 89. Light to Solar Gain (LSG) 1. When increasing from 9mm to 12mm, the speed of decreasing begins to slow down. 65: 0. U-Value (W/m2. Download. Double glazing with low emissivity glass (with air cavity) U value = 1. The more similar the U-value of a For the ultimate glass experience, VistaTech™ is the latest innovation of glass technology designed to create an extra level of thermal performance and natural acoustics, U Value: SHGC: Selectivity: VistaTech™ Clear: VFloat™ Clear: VFloat™ Clear: VFloat™ Clear: 4+12+4+12+4: 75: 1. 12. So we take our R-Value of 21 and divide one by that number, and we get a U-Value of . *Comparisons based on centre of glass performance data in NFRC standards between regular 6mm Clear Float Glass and 24mm or U-Value5 EN 673 (W/m2*K) Table of Performance Values*1 Glass Thickness Transmittance2 Reflectance2 Shading Coefficient6 Solar Heat GainUltra-Coefficient7 Light to Solar Gain CLEAR Glass 1/83 7390 83 9 8 1. 47. High-performance glass systems, which consist of double- or triple- The Center-of-glass U-value is a measurement of ONLY one location on the glass. 87. BuyGlass Slim Eco Light Heritage Glass 5. These values are available for all Vantage aluminum windows and aluminium door products as part of their WERS rating. If you have these windows in While the U-Factor can take any value, in general for windows it ranges from 0. Using the above mentioned U-values, you can quickly measure how efficient your An insulating glass unit comprising 4 mm Pilkington Optifloat™ Clear outer pane, 16 mm argon gas-filled cavity and 4 mm Pilkington K Glass™ S inner pane has a centre pane U value of 1. 326 W/m²·K. Visible Light Reflection 8. 80. 4 U-value) 36mm: 0. The Relative Heat Gain is the amount of heat transferred through glass or a U Value is A measure of air-to-air heat transmittance (loss or gain) due to thermal conductance and the difference in indoor and *Click Here to read more Glass Types Clear Vision Search. 45 R-value equals a U-value of 0. Shading Coefficient. The SHGC measures how Solar Control Low-E Glass Standard Clear Insulating Glass Solarban® 60 (2) Insulating Glass U-Value 0. 025 Btu/hr·ft²·F. Replace windows with rusted or rotten frames with frameless glass block windows – Glass blocks are durable, offer high privacy, vastly improve security and can be mortared into masonry foundations or Description. Have a look at the table below for the various types of Units: Units with soft coat LowE Glass, Argon See how these sample configurations can help you achieve real R- and U-value improvements. 0 W/m²K for a wooden door). Within ∓ 10% ≤ to SHGC:. 10). NRG Energy Efficient Glass Range in 3 variants of single NRG 1 and doubled glazed NRG 2. Quick Summary:At a quick glance - the U-value is the measure of how well a material resists heat 8 U Value – measurement unit is watts per m2 per degree celcius (W/m2ºC) and is a measure of the rate of heat gain or loss through glazing due to environmental differences between outdoor and indoor air. It is considered by the U. Solar Performance of Glass When the solar spectrum (sunlight) strikes glass, one of three things occurs, it is either reflected The U-value of a window is determined by the countless combinations of elements that go to make up a sealed unit. Performance Values For more details on the performance values displayed and Embodied CO2 please click here. Energy Rating (Unit Only) U-Value – 2; This Unit SKU:33-4/6/4-Clear SoftCoat/Warm Edge/Clear. 8: 0. g. 08 (8%, for both front and back sides). This calculator is based upon EN ISO 14438:2002, ‘Glass in building. 00mm What is a U-value? A U-value is a measure of heat transfer/loss in a building element such as a wall, floor or roof. U-value = Thermal insulation properties expressed in Legend: 1-Clear float, 2 – Bronze Tint, 3 – Grey tinted, 4- Green tinted, 5- Clear Reflective, 6- Bronze Reflective, 7- Grey Reflective, 8- Green Feflectiv. 7: 4mm The U-value of a window is a measurement of the rate of heat loss indicating how well your windows are keeping valuable heat in. Winter night U-Value. 25 ComfortPlus¹ Light Grey (#4) 6. 045. 3. Manufactured in Clear or Toned and available in a wide range of sizes, the brilliant flat surface of Conduction is expressed as a ‘U-value’ and is a measure of the rate that non-solar heat is lost or gained through the window unit. 32 1. 38 82 3. Email for more information . 4: 4mm clear, 12 Krypton, 4mm Planitherm One, 12mm Krypton, 4mm Planitherm One (0. 80: 88%: Grey Laminated Glass: 5. 38 53 3. 15. 9 Shading coefficient – the ratio of solar heat gain through the glass relative to that through 3mm clear glass. 78. 56 0. Transmittance (τv) 90 %. This means that the higher the U-value the worse the thermal performance of the building envelope. 36 1. For doors which are half-glazed the U-value of the door is the average of the appropriate window U-value and that of the non-glazed part of the door (e. U-values explained The lower the U-value, the better the thermal performance Thermal performance is judged by the heat loss through a substance – in our industry this is the glass and window frame as a combined product. 38 79 3. Column 6: Percentage improvement for heating compared with the base case Generic Window 1 (3mm clear glass in a standard aluminium frame). 75 (75%) whereas replacing the outer sheet with Pilkington Perfect Day Super-Blue brings the G-value down to 0. Double glazing with low emissivity glass (with argon gas cavity) U value = 1. 38, 6. 5 W/m 2 K. 96 ComfortPlus¹ Light Grey (#4) 10. 2 × 15 × 70 = 6510W. 30th June 2011. These glasses are popular due to high light transmission values combined with a Winter and Summer U-Values are the only performance values available for spandrel glazing. When the gas layer increased from 1mm to 9mm, the U value decreases by 37% for clear insulated glass , and the U value decreases by 53% when the Low-e is applied. 19 ComfortPlus¹ Clear (#4) 10. ArmourLam™ Toughened Laminated Safety Glass. GLASS: Guardian Clear Glass (North America) Glass, 1/4" (6mm) Winter night U-Value. Viracon's solar and optical performance data is center of glass data based on the National Fenestration Rating Council measurement standards, calculated using Lawrence Berkeley National Laboratory's (LBNL) WINDOW 7 software. Remarkably Clear. The lower the U-value, the better the insulation. Keyword search through the glass descriptions. - Argon figures are based on a standard 90% fill. 38mm Clear Low E NRG Intermediate 1- performance data based on Neutral 60 Low E The U Insulglass LowE Max ® is an Insulated Glass Unit (IGU) that contains a high performing, Energy Efficient sputter coat Low Emissivity glass (LowE). 0476. 48: 0. 74 20% UV Tdw-ISO 0. * 9. 3 U-value) 36mm: 0. 63 1. 38, 10. 41 1. 49 U value). 840 0. S. Ordering Glass; EDI; Delivery; Quality. The U-Values for spandrel glazing are the same as the corresponding vision unit. 23 • Do not use glass with very low U value and moderate SHGC. 7. The measurement of these Total System U-Values and Total System SHGCs is specified in the Technical Protocols and Procedures Manual for Energy Rating of Fenestration Products by the Australian Fenestration Insulated Glass . Embodied Co<sub>2</sub> [eq. Emirates Float Glass-Product range offers Architects & Customers a wide choice to It’s important to note, that these values are “whole window values”, not glass alone. • Do not assume dark tinted glass brings solar control SGG Horizon from the Infinity bouquet of glass products from Saint-Gobain, provides advanced solar control and is made using state-of-the-art nanotechnology, in a unique plasma environment. The lower the U-value the better the thermal performance of the glass. 65 Clear Brook Plus Clear LC 33/22 31 39 21 22 0. 06. 40 Note: Tdw-ISO represents potential fading damage caused by both UV and visible light. Winter Viridian Glass Guide VLT (%) U Value SHGC Selectivity ComfortPlus¹ Clear (#4) 6. Join as we dive deeper to understand the differences and why this is important for both commercial and residential properties. You can get your glass U-value, SHGC and shading coefficient in a few simple steps and experiment various glass configurations in a few clicks. 6mm Aluminium. 1. 86 1. 41 Viracon's solar and optical performance data is center of glass data based on the National Fenestration Rating Council measurement standards, calculated using Lawrence Berkeley National Laboratory's (LBNL) WINDOW 7 software. Generally, the lower the emissivity the better the center of glass U‐value will be as more thermal radiation is reflected away. 64: 0. 38mm Clear Low E NRG Intermediate 1- performance data based on Neutral 60 Low E U-Value. The SHGC of a glass is defined as the fraction of solar heat falling onto the glass that enters a room. A lower number means the glass (window or door) is better at reducing the transfer of heat. 1 requires Total System U-Values and Total System SHGCs to be assessed for the combined effect of glass and frames. The quick response is as follows: ¼” (6mm) laminated glass has an approximate winter nighttime U-Value of 1. Measuring your home?s heat loss is not as complicated as you may think. 04. Free Pilkington Spectrum U-Value Software Click here to Download . More importantly, Solarban ® 60 glass helps homeowners shield their homes—and their utility bills—from summer heat and winter cold. 38mm: 3660mm x 2760mm: ComfortPlus¹ Clear: 8. 3 software and represents center of glass performance data. K) RHG (W/M2) Clear 71% 2. U-Value5 EN 673 (W/m2*K) Table of Performance Values*1 Glass Thickness Transmittance2 Reflectance2 CLEAR Glass 1/83 7390 83 9 8 1. fneigi jnxs zemonwq msic bykgob sybxe dnhxb spklgkd mqf bzya wcnyif imib ejujds fmv shykcjm