Clear glass u value. It is expressed as Watts per square metre Kelvin W/m2 K.

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Clear glass u value The building design & the local weather conditions meant that you can relax the glass values & still be energy efficient. g. See how these sample configurations can help you achieve real R- and U-value improvements. 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. 89. 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 Solarban ® 60 Starphire ® glass can help you achieve your design vision of a glass building with the ultimate in transparency and visual clarity combined with energy efficiency. Argon fill is 90% and air fill is 100%. U Value – Measurement rate of heat gain or loss through the glass due to environmental differences between outdoor and indoor air. The U-Factor measures how well the window in-sulates. 24. 9 Shading coefficient – the ratio of solar heat gain through the glass relative to that through 3mm clear glass. 80 1/4" Clear laminated - . Sealed Unit Width U-values Example Specification (Click below to view PDF) 24mm: 1. Substrate It’s important to note, that these values are “whole window values”, not glass alone. 74 (Double Glazed) 6 mm clear (SB60) / 6 mm Clear 24. 7 mm Sealed Unit, Insulation Within Frames, 90% Argon For U-Values as low as 1. ComfortPlus™ products offer improved thermal and sound insulation in a single laminate with a selection of colours, daylight transmission and solar control. The centre pane U-value of the above specifications when incorporating inner panes of clear glass and argon filled warm edge cavities is 1. 86 5. 3333. The gas mixture is assumed to consist of 90% argon and 10% air. sg • U-Values are quoted in W/m2/K, rounded down to the nearest 0. 39 95 U Value. Glass Type. U-Value 5. However, the solar control properties of the coating will still U-Value. 5% better (triple) than standard clear insulating glass: Ultraviolet Energy: 58%: 4%: 4%: Blocks 94% of UV energy, a common contributor to fabrics, carpet and furniture fading Type: Solar Control Low-E Clear Insulating Glass “Solarban®” 90 (2) Clear + Clear by Vitro Architectural Glass. However, sometimes a centre-of-glass U Value is given, which simply measures the performance of the glazing alone. 0: 4mm Clear, 16mm Argon, 4mm Planitherm One (1. The u value doesn't change for the different orientations (north, south, etc). The U-value will be the same for that glass regardless of the window the glass is in. 6w/m2. 0W/m²K: U-Value = 1. High See full list on otm. 6W/m²K or Window Energy Rating = Band C: Doors with more than 50% of their internal face area glazed: 1. Total System SHGC range. 73 0. 8 6mm 88 7 7 0. 2 - 3. 56W/m2. 57 - 0. 48 SHGC 0. Nov 14, 2017 · The quick response is as follows: ¼” (6mm) laminated glass has an approximate winter nighttime U-Value of 1. 40 1. 47 1. 12 10. S. It is common for double glazing companies to cite the stand alone heat reduction in just the pane, so always double check how much heat will be lost for the rest of the window frame as well. Glass U-Value depends on cavity width and type of coating. The most common glass combination is 6-12A-6 with double silver low-E,U value is around 1. It is NOT a measurement of the rest of the window, and does not reflect the thermal efficiency of the frame and other window components. 5 85 8 8 65 7 <1 5. U-Value (Ug, W/m2 K) is the glazing parameter that characterizes the heat transfer through the central part of the glazing, i. U-values indicate how efficiently an insulated glass unit (IGU) keeps hot or cooled air within. 40, depending on the manufacturer, the type of glazing (low E or clear glass) and the type of spacer between the glass. 78 20. It is a measure of the solar heat gain referenced to 3 mm clear glass which has the designated value of 1. . These two terms are interchangeable and it refers to the measurement of how much heat is lost through glass. 71 0. 65 Solar Heat Gain Coefficient 0. 6. The more similar the U-value of a unit’s components, the more similar the U-value of the finished product will be. 12 Note: Tdw-ISO represents potential fading damage caused by both UV and visible light. 8 Guardian UltraClear® Low-Iron Glass. Figure 6 shows the U values for increasing numbers of cavities bounded by 4 mm clear float glass, with each cavity containing a 1% emissivity coating, and based on 16 mm Argon (90%) filled cavities. 3 3. The glass shall comply with the following performance criteria: U value Solar Heat Gain Coefficient (SHGC) Visible Light Transmission % Glass Only Values Total window Heat Strengthening All glass which requires extra strength and thermal resistance will be heat strengthened. 92 • Shading Coefficient: 0. 9 2. 7 Clear Comfort Clear 30 25 14 24 0. ComfortPlus™ consists of a range of clear and toned laminated glass options featuring a transparent, durable pyrolytic Low E coating. 65 Clearvision Clear LC 39/29 36 24 11 28 0. 74 6% UV Tdw-ISO 0. Now, in the above-noted code requirements, we had a window U-value requirement of 0. Light to Is the glazing parameter that characterizes the heat transfer through the central part of the glazing, i. 65 2. For example, a U-value of 0. 5 Exterior tint may vary from unit to unit. R-VALUE R-value is a measure of heat flow resistance. U value is typically measured in Watts per square metre Kelvin or W/m2K. The lower the U-value the better the insulation Jan 24, 2022 · Insulated Glass Units of 6mm/12 Argon/6mm glass: U value of 2. 02 • Summer Daytime U-Value: 0. 045. Location: associated U-Value performance improvement of the low-E coating will be lost. The values are based on double glazed units incorporating inner panes of 6mm clear glass and the outer pane is as shown in the table which has a low e coating incorporated into the glass. Guardian UltraClear® low-iron glass can help bring the wow factor to your next architectural project. 8W/m²K (or exempt if fitted into existing door frame) Other doors: 1. 73 (Double Glazed) Table of U-Values The following table gives centre pane U-Values for the constructions and cavities as shown 6 8 10 12 14 16 18 20 Clear Clear Air 3. 340" in addition to a standard pane of 0. The Center-of-glass U-value is a measurement of ONLY one location on the glass. 87 is the nominal SHGC of a clear glass. 75 0. 61 2. 54 0. U-VALUE The U-value is the measure of how much heat is transferred through the window. Tinted. U-Factor Describes the resistance of the door glass to conducting heat and cold through the unit. • Winter Nighttime U-Value: 1. Solar Heat Gain Co-efficient (SHGC) is the amount of heat from direct sunlight that passes through the glass. 41 0. 9 4mm 89 8 8 0. VFloat™ SuperClear low iron float glass is a specialist ultra clear glass offering the highest possible levels of light transmission and visual clarity. It is considered by the U. 65 3. 1-2009 for safety glazing Applicable Standards: ASTM C1036-06 Std. VFloat™ SuperClear has distinctive clarity that is achieved by using sand with much lower iron oxide content in the batch mix when the float glass is manufactured. 41 High visible light transmittance, comparable to conventional clear glass: U-Value: 0. Winter night U-Value. Solar Performance of Glass When the solar spectrum (sunlight) strikes glass, one of three things occurs, it is either reflected 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. What is U-Value? U-value, or U-factor, is a score given to a surface based on how quickly it allows heat to pass through it. Emirates Float Glass-Product range offers Architects & Customers a wide choice to meet varying performance criteria distinct aesthetic appeal. 32 1. 87. 48 2. Thus an additional benefit of using Low-E glass is that it permits a higher relative humidity in a room before condensation will occur. Low-E glass offers several distinct advantages for your Melbourne home. • Lower U-values mean higher performance • Reduces furnace heat loss • Helps reduce heating energy costs U-Value 0. Low-e 4th Surface Technology allows double-glazed insulating glass units to achieve 12% better thermal performance than clear glass triple-pane Mar 17, 2005 · Vinyl window u values range from . 45 GLASS: Guardian Clear Glass (Middle East & Africa) Glass, 6mm (2-SunGuard® DS Grey T (Middle East & Africa)) GAP: 100% Air 12. Clear 6. 25 1. 15 12. 3 software and represents center of glass performance data. 125". The SHGC measures how much of the sun’s heat comes through the window. 25: Insulates as much as 50% better than standard clear insulating glass: Ultraviolet Energy: 59%: 20%: Blocks 80% of UV energy, a common contributor to fabrics, carpet and furniture fading : Damage Weighted Transmittance * 0. 10). 77; Insulated Glass Units of 6mm/12 Argon/6mm glass with a Low-E coating: U value of 1. 760". The virtually inseparable thermochemical bond between the PVB interlayer and glass causes the glass to adhere to the PVB interlayer, holding the glass sheets together. Coating Density N/A. 78 15. 27 Note: Tdw-ISO represents potential fading damage caused by both UV and visible light. Because Low-E glass improves (lowers) the IG unit U-Value, using Low-E glass will increase the unit’s interior glass surface temperature. 31 U-Value 0. Keyword search through the glass descriptions. without edge effects, and expresses the steady-state density of heat transfer rate per temperature 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. 43 0. U Value: the total heat transfer out of a window (Btu/hr-sq ft-F or W/sq m- C). 2; a lower value equates to less heat flow. k. It is expressed as Watts per square metre Kelvin W/m2 K. 25 SHGC 0. 38mm: 5100mm x 3210mm: ComfortPlus¹ Clear: 10. 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. If R-value tells us of a surface’s thermal resistance, then U-value is a surface’s thermal transmittance. The South African National standard SANS 1263 Part 1:2013 Oct 31, 2024 · To calculate R-value, divide 1 by the U-value figure. 55 Visible Light 72% U-Value 0. F) For U-Values as low as 1. 28 1. Comment. 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. Out Refl. Coated. 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. Low-E Coating: “Solarban ® ” 90 Solar Control (Sputtered) by Vitro Architectural Glass. Glass description. 36 1. Determination of energy balance value. 840 0. Glass Type Emissivity (low‐e) U‐Value* (air) U‐Value* (argon) Clear 0. Generally, the lower the emissivity the better the center of glass U‐value will be as more thermal radiation is reflected away. Enter a keyword for product or colour such as "eclipse". These values are available for all Vantage aluminum windows and aluminium door products as part of their WERS rating. Shading coefficient is a relative scale in comparison with a clear glass. e. 1. 800 Park Drive , Owatonna , MN 55060 US | (800) 533-2080 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. With low-e coatings applied to the #2 and the #4 surfaces of an insulating glazing unit, you can reduce the center-of-glass U-Factor by 21%, compared to a unit with a pyrolytic low-e and a clear lite. 929 Btu/hr·ft²·F. 29. The U-value represents the amount of heat that passes through one square meter (m²) of the element when there is a temperature difference of one degree Celsius (°C) between the interior and exterior environments. Solarban ® 60 Starphire ® glass allows ultra-clear glass to be used for vision glass, skylights, atriums, storefronts and entryways without sacrificing energy Allows high level of visible light transmittance and exterior clear glass appearance: U-Value: 0. GLASS: Guardian Clear Glass (Middle East & Africa) Glass, 6mm. 65 Clear Brook Plus Clear LC 33/22 31 39 21 22 0. Solar Heat Gain Coefficient Insulated glass is widely used in curtain wall,glass wall ,high rise buildings. The channel is carefully annealed (control-cooled) and cut to the desired length prior to final processing and shipping. The lower the number, the more effective the insulation. 5 0. 31 to . 1. Within ∓ 10% ≤ to Shading: Glass Type. For windows, skylights, and glass doors, a U-factor may refer to just the glass or glazing alone. ENERGY STAR does not consider center-of Solar Control Low-E Glass Standard Clear Insulating Glass Solarban® 60 (2) Insulating Glass U-Value 0. SHGC GLASS: Guardian Clear Glass (Middle East & Africa) Glass, 4mm. Impact-rated IG's will have a pane of glass that is approximately 0. GLASS SIZES AND OPTIMIZED U-VALUES U-VALUE U-VALUE METRIC IMPERIAL GLASS TYPE 2SPACER 2 (W/m . Visible Light Transmission 88. 37 Misunderstanding 1:Thicker glass has much better U value than thin glass, laminated glass U value is significantly lower than that of the same thickness glass. The lower the U-value, the better the insulation. U-values typically vary from 0. 24 SHGC 0. Heat strengthening increases the strength of Here, 0. No distractions. Laminated glass is a safety glass product and can be used in insulating (double U-Value2 (Imperial) K-Value2 (Metric) Shading Coeffi-cient3 Solar Heat Gain Coeffi-cient4 Insulating Glass Unit*1 (1/4" outdoor lite as noted below + 1/2" airspace + 1/4" • clear glass + 0. It is determined by dividing the U-factor into 1, (R-value = 1/U-factor). Allows high level of visible light transmittance and exterior clear glass appearance: U-Value: 0. 0 W/m²K for a wooden door). 56 Values are center of glass calculated using LBNL Window 7 per NFRC100 conditions. Two 4mm sheets of basic clear glass might have a G-value of 0. 81 5. Each pane of glass is typically 0. 5 VIRIDIAN GLASS GUIDE™: GLASS PERFORMANCE - INSULATED GLAZING Outside Glass Inside Glass Nominal Thickness Visible Solar UV Trans U Value SHGC Weight kg/m2 Selectivity Trans. 030, we get an R-Value for the window of 3. 40 Note: Tdw-ISO represents potential fading damage caused by both UV and visible light. This calculator is based upon EN ISO 14438:2002, ‘Glass in building. U-values are measured in w/m2K which is the units of watts per square metre per degree Kelvin or in other words the amount of heat loss through a 1 square metre of material for every 2. 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 argon from Vitro Architectural Glass, with a U-value of 0. 74: 0. Department of Aug 1, 2023 · The difference between clear and low-iron glass is the greater transparency of the latter, making it more suitable for uses such as frameless glass walls, back-painting, markerboards, UV-bonded display cases, partitions and dividers, and other applications. The U-value is the overall heat-transfer coefficient; a numerical expressio and center of glass U‐values for various Vitro glass products. 70 1. 326 W/m²·K. without edge effects, and expresses the steady-state density of heat transfer rate per temperature difference between the environmental temperatures on each side. 0. 12 8. Actual values may vary due to production tolerances. 4. 7 Clear Brook Plus Clear 33 39 21 22 0. Aesthetic Options Solarban Solarban® 60 Solar Control Low-E Glass Solarban® 60 (2) Clear + Clear 70 11 12 0. It’s clear from these configurations that new technologies like VIG and fourth-surface low-e coatings represent the next generation of thermal Apr 28, 2023 · U-values, also known as thermal transmittance values, measure the rate of heat transfer through a building element, such as an Insulated Glass Unit (IGU). This product is commonly referenced as SolTech¹ Clear or SolTech¹ Grey to reflect the glass substrate. 9, whilst ComfortPlus™ has a U value of 3. 7 0. Solar Heat Gain Coefficient 0. The weights (630 W/m 2 for shading coefficient and 7. 88 1. ‘R’ stands for resistance. U-factors of windows will generally fall between . • Argon figures are based on a standard 90% fill. 43 A U-Value is a measurement of insulation in general the lower the value the more efficient the window as less fabric heat is lost through the glass or frame. Primary Flat Glass, ASTM U-Value % % % % W/m2K 6 mm Solar Control Low-E Glass – 12 mm Air Gap – 6 mm Clear Glass Clear Lite Plus Clear 54 15 11 38 0. 55 0. The Neutral component identifies the coating hue and is available on Clear and Grey float glass. 82 1/4" Clear UPG Tempered Glass is certified by the Safety Glazing Certification Council (SGCC) conforming to 16 CFR 1201 & ANSI Z97. Variations and Strategies for Improving U-Value. 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™ S inner pane has a centre pane U value of 1. 49 U value). Glass has a low R-value, so by All values are centre of glass. Calculating u value of glass is simple. 80. It’s noticeably clearer than standard glass — so what people see is completely up to you. 55 nighttime U-value. Superior Insulating Performance. 6 15mm 83 6 for center of glass, edge of glass and frame performance. 025 Btu/hr·ft²·F. 10 equals an R-value of 10 (1 divided by 0. 36. 7 Aug 2, 2012 · Even a standard window with double pane glass will vastly improve performance (a standard clear insulated glass unit has a . While the U-Factor can take any value, in general for windows it ranges from 0. 346 W/m²·K. 91 • Shading Coefficient: 0. 6; Advantages of Low-E Glass. 9 5mm 88 8 8 0. 34 Relative Heat Gain W/m2 535 427 332 565 414 308 262 U-Value The rating given to a window based on how much heat loss it allows. The resulting U-glass ribbon is cooled and hardened, creating a continuous glass channel of the specified dimensions and surface finish. 45 R-value equals a U-value of 0. 66 1. 6. 41 1. 980. 72 5. So we take our R-Value of 21 and divide one by that number, and we get a U-Value of . range. 1 (very little heat loss) to 1. With RHG, it is convenient to use a single value to evaluate glass thermal performance in summer conditions. and the IG unit thermal transmittance (U-Value). It is nowadays redundant to scale SHGC by 0. 6 0. 75 5. A higher R-value indicates better insulating properties of U-Factor and the Solar Heat Gain Coefficient (SGHC). 2 W/m 2 K. U-values. 2 and 1. Viridian reference SolTech¹ Neutral aligned to Oceania Glass branding. 910 W/m²·K. Light to Solar Gain. Glass U-Value depends on cavity width. Less than or equal to. High visible light transmittance, comparable to conventional clear glass: U-Value: 0. 8W/m²K: 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. Apr 18, 2021 · For example, a glass may be with lower SHGC but higher U-value than another glass. 0 W/m²K. 4 and an SHGC of 0. 5 1. Primary Flat Glass, ASTM Note: Measurement of improved U-values are calculated using a baseline of a Double Low-e 1” IGU Solarban ® 70 (2) Clear + Clear with argon from Vitro Architectural Glass, with a U-value of 0. Calculated Values are in accordance with NFRC2010 Product Name: Thickness: Stock Size: ComfortPlus¹ Clear: 6. Clear. Summer daytime U-value and winter nighttime U-value are two common derivatives Effective U-value calculator. The spandrel color does not impact U-Value. 7. As the U-value decreases, so does the amount of heat that is transferred through the glazing material. Glass SHGC depends on type of tint, tinted glass thickness and on cavity width. 3. single glass performance values vlt visible light transmission vlr visible light reflectance vlri visible light reflectance shgc u-value colour and type % external % internal % w/m2k clear float 3mm 90 8 8 0. Visible Light Reflection 8. 4 (40%). U-Value – A measure of the insulating characteristics of the glass or how much heat gain or loss occurs through the glass due to the difference between indoor and outdoor temperatures and is measured Btu/ hr•ft2 CLEAR Glass 1/83 7390 83 9 8 1. 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 . Misunderstanding 2: The thicker spacer of insulated glass, the better energy efficient performance. True transparency. A lower summer daytime U-value indicates better heat-blocking capabilities, crucial for mitigating solar heat gain during hot periods, thereby enhancing air conditioning efficiency. • For multi cavity and low-E combinations please contact Customer Services. To calculate U-value, divide 1 by the R-value—a 3. 6 and an SHGC of 0. 67 1. It is measured in watts over m2 per degree Celsius (w/m2°C). 4 Values are based on comparison of Renewal by Andersen® double-hung window U-factor to the U-factor for clear dual pane glass non-metal frame default values from the 2006, 2009, 2012, 2015 and 2018 International Energy Conservation Code "Glazed Fenestration" Default Tables. Argon ThermoTech™ Clear Therefore, R-Value multiplied by U-Value always equals 1. 46 0. In layman’s language, the lower u value, the better the thermal performance of the glass. Tdw ISO/CIE Indoor Glass Temperature (°F) Trans Reflectance Out In Air Argon Winter Summer Clear Clear 82 Derived metrics like summer daytime U-value and winter nighttime U-value offer nuanced insights into glass performance under specific environmental conditions. 24: Insulates 50% better than a standard clear insulating glass unit : Ultraviolet Energy: 59%: 8%: Reduces fabric-fading UV energy three times more effectively than clear glass : Damage Weighted Transmittance * 0. 30. Apr 4, 2018 · The lower the G-value, the less the conservatory will overheat during the summer months. 6 Clear Priva Clear 30 31 17 22 0. 8 0. 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. 750" to 0. • Lower U-values mean higher performance • Reduces furnace heat loss •Helps reduce heating energy costs Solarban® 90 glass is a low-e glass featuring proprietary multi-silver solar control coating 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. 885 W/m²·K. It can range in value GLASS: Guardian Clear Glass (North America) Glass, 1/4" (6mm) Winter night U-Value. The lower the U-Value, the better the window acts as a heat insulator. 125" thick, so the air gap for a 1" IG with two panes of glass will be approximately 0. 7 12mm 84 7 7 0. 33 1. K) A measure of the air-to-air heat transfer due to thermal conductance and the difference in indoor and outdoor temperatures. Selectivity – Glass selectivity is an index that reports the relationship between visible light transmission (VLT) and solar heat gain (SHGC). 060" clear PVB + 1/4" clear glass) Clear Glass 77 49 15 11 0. 93 0. In cases where it is desirable to laminate the coating in direct contact with the interlayer material, the U-Value of the glass will be about the same as that of uncoated clear or tinted glass. U-value (thermal transmittance) U-value is also called U-factor in the NFRC U-Value (COG) W/m2K 3. For example, 4mm clear float glass has a U value of 5. 24: 0. 20 to 1. All performance data is calculated using LBNL Window 7. 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. So called 'Low-emissivity' or 'Low E' glass offers improved thermal insulation denoted by very low U-values. ft . 0476. 38mm: 5100mm VIRIDIAN GLASS GUIDE™: GLASS PERFORMANCE - SINGLE GLAZING Product Name Nominal Thickness Visible Solar UV Trans U Value SHGC Weight kg/m2 Selectivity Trans. U-Value = 2. 030 PVB UPG Tempered Glass is certified by the Safety Glazing Certification Council (SGCC) conforming to 16 CFR 1201 & ANSI Z97. 00 • Summer Daytime U-Value: 0. 38mm: 3660mm x 2760mm: ComfortPlus¹ Clear: 8. 2W/m²K: U-Value = 1 The U-Value of glass is the same as the U-Factor. 8 2. technology, Solarban® 90 glass is engineered to outperform Solarban® 70 glass, the most preferred high-performance solar control low-e glass in North America. When paired with clear glass in a standard one-inch insulating glass unit (IGU), Solarban® 90 glass offers a Solar Heat Gain Coefficient 60 (3)(5) glass is more than 61% better than standard clear insulating glass. U-value can be thought of as the opposite of R-value. 29 0. 20. Solar Control Low-E Glass Standard Clear Insulating Glass Solarban® 70 (2) Insulating Glass U-Value 0. 65 GLASS: Guardian Clear Glass (Asia Pacific) Glass, 1/8" (3mm) Winter night U-Value. 64 Clear Radiance Plus Clear LC 49/32 46 20 13 31 0. Transmittance and reflectance values based on spectrophotometric measurements and energy distribution of solar radiation. 5 87 8 8 71 7 <1 5. 5 85 8 8 64 6 <1 5. Jan 14, 2017 · The glazing on the glass has its own U-value. 1 3 2. 05 PPG Monolithic Glass Comparisons U-Value5 EN 673 (W/m2*K) Table of Performance Values*1 U-Value (W/m2. 75 (75%) whereas replacing the outer sheet with Pilkington Perfect Day Super-Blue brings the G-value down to 0. The U-Values for spandrel glazing are the same as the corresponding vision unit. 0 U-value) 24mm: 1. So ComfortPlus™ is a better insulating product than 3mm clear float glass. 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 Title: Lexan™ MR10, 9034, Grey, and Bronze Polycarbonate Sheet Information Description: Code Compliance, Abrasion Resistance Comparison, U-value, Sound Transmission, Light and Energy Transmittance, Weight, Cold Bending Radii, Shading Coefficient, and Coefficient of Thermal Expansion Published: 3/31/2009 Last Edited: 1/5/2023 Center of Glass U-Value (BTU/hr/ft²/°F) Comfort UV Trans. The lower the number is, the better the insulating qualities of the glass. 7 was as efficient as a glass with SF of 25 & U-Val – 3. 7 10mm 86 7 7 0. 82 5. Winter and Summer U-Values are the only performance values available for spandrel glazing. For example, if your home has 70 m 2 of glazing with aluminium frames and clear glass with a U value of 6. 76 0. 26: Insulates 46% better than a standard clear insulating glass unit : Ultraviolet Energy: 58%: 17%: Reduces fabric-fading UV energy three times more effectively than clear glass : Damage Weighted Transmittance * 0. How are U Values Calculated? Once you are familiar with what is u value, the second question arises about how u values are calculated. The steel rollers imprint a texture in the glass surface. 17 SOLEXIA® Glass 67 32 13 8 0. 47 0. 7 2. 43 Visible Light 63% U-Value 0. 26 1. An insulating glass unit comprising 4 mm Pilkington Optifloat™ Clear outer pane, 16 mm argon gas-filled cavity and 4 mm Pilkington Optitherm The winter nighttime U-Value (insulating value) of a Solarban® 90 (2) glass unit is 50% better than standard clear insulating glass. NFRC U-factor ratings, however, represent the entire window performance, including frame and spacer material. 74 20% UV Tdw-ISO 0. This can improve formed into a U-shape. 86 1. 77 5. 84 5. Outdoor Lite: Clear (transparent) Float Glass, Sputter Coated on second surface (2) Indoor Lite: Clear (transparent) Float Glass. 44 1. 48: 0. 73 30. Breathtaking views. 76 Visible Light 81% 59% UV Tdw-ISO 0. K) (BTU/hr. 72 - 0. Framing, cladding, frame type and other items will affect the overall thermal values of a complete window. Laminated glass is designed to minimise serious injury to humans that may accidentally collide with glass. 00. 47. 24 0. 7 Clear Vision Plus Clear 39 23 13 29 0. 8W/m²K (or exempt if fitted into existing door frame) Aluminium Windows and Doors: U-Value = 1. 94 0. The industry still uses shading coefficient mainly for the purpose of backward compatibility. The lower the number the better the glass. The lower the U-Factor, the better the window insulates. 2 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. 7 Clear Radiance Clear 47 22 14 35 0. 18: Insulates as much as 50% better (double) or 62. This performance data is not a commitment for Cardinal to produce. 74 25. Refl. 8 8mm 87 7 7 0. 8 °C for summer condition U-value) are fixed for a standard summer daytime condition. In Trans. SHGC (Solar Heat Gain Coefficient) Within ∓ 10% ≤ to SHGC: Shading Coefficient. 0mm. The lower the value, the greater is the insulating value. 63. ，with more low-E coatings and glass overall thickness,as well as Argon ,U value of triple glazed units can achieve 0. Bangalore, where glass with SF of 37 & U-Val – 5. ) Uncoated glass is assumed to have a normal emissivity of 0. If we do our reciprocal calculation using a U-Value of . 0 (very significant heat loss) (high heat loss). Summer day U-value. 5. Remarkably Clear. It is expressed as Watts per square meter Kelvin W/m2 K. 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: U-factor is the rate at which a window, door, or skylight transmits non-solar heat flow. The lower the U-value the better the thermal performance of the glass. oagzs dgshew osdmppo jrvo djbkeihz mmghbcj gbwz zqty urentn gnmjph dipud qjrxcasc boqol mloc pgn