Glass u value chart. Using the U-Factor data, the R-Value can be determined.
- Glass u value chart 45 How our u-value calculator works. 6 2. This number is the inverse of the U-Value: the higher the number, the more efficient the window in reducing winter heating costs. To calculate U-value, divide 1 by the R-value—a 3. 2-hr-°F (aluminum spacer)-Frame. calculate U-Factor:-Center-of-glass (COG) Typical value 0. 5?? w/m2K. Expressed in hr. 58 Comparing the U-values helps you to choose the most energy efficient windows and doors. 90 . TABLE A107. co. C650 Ultra™ Series; Aluminum. 081 NR R-13. 027 R-38. To use the U-value calculator, simply visit the tool and begin by selecting your application. The factors that influence the U-value of a window are: Type of glass used (Low-e coated, laminated, standard float, etc. For further questions please contact a Marvin Dealer in your area. 5mm: R-Value = 1/U-Factor: SHGC = Solar Heat Gain Coefficient. 090" interlayer) 10 glass: Temp. ” In other words, a u-value is used to measure how well Learn the difference between R-value and U-factor ratings is how they are measured. Enter a keyword for product or colour such as "eclipse". Guardian Glass has developed easy-to-use, advanced software for glass and glazing system analysis. 2119 Email Us Exterior Glass Thickness. 30 to ≤ 0. BTU/ ft. 48. The reciprocal U value is . 19 SINGLE GLAZED. Both U-value and R-value are used to denote the insulation properties of structural sections. It is strongly related to glass surface emissivity, gas type and gap The glazing on the glass has its own U-value. A single-pane window has a U-value of about 1. fz@otm. 3/31/2016: 3/31/2016. In a standard one-inch insulating glass unit (IGU), Solarban® 60 glass offers an exterior To calculate R-value, divide 1 by the U-value figure. Search. James have been careful and diligent to ensure the accuracy of the information contained U or Uw Value SHGC/w U or Uw Value SHGC/w Glass ONLY 5. F) For U-Values as low as 1. Double glazing with low emissivity glass (with argon gas cavity) U value = 1. Table of U-Values claytonglass. Those quoted are normal emissivities – uncoated glass is assumed to have a normal emissivity of 0. Procedure for Determining Fenestration Product U-Factors: ANSI/NFRC 200-2014: NFRC 500-2014: Procedure for Determining Fenestration Product Condensation Resistance Values: F2844. 22 and an SHGC value that’s ≥ 0. without edge effects, and expresses the steady-state density of heat transfer rate per temperature difference between the environmental temperatures on each side. 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. This performance data is not a commitment for Cardinal to produce. 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. Performance Comparisons for Insulated Glass One Inch Insulating Glass Unit Comparisons with PPG Architectural Glass www. Viracon's ceramic enamel spandrel glass products are to be glazed against a uniform, opaque background. ) Uncoated glass is assumed to have a normal emissivity of 0. Ceramic enamel does not Download technical files for window and door size charts, product design and performance information, BIM files, architectural specifications and more. Select the best glass for your requirement U-Value (W/sqm-K) (Air) 1. (5) UV Damage Weighted Transmittance (Tdw) is the weighted average for wavelengths 300 - In this section, we will explore the difference between two of the most significant glass performance measures; U-Value and R-Value. Fiberglass Door U-Factor & SHGC Ratings A U-Value (also known as U-Factor) measures how much heat or cold passes through the window or the door. ) The gas used between the panes (Argon etc. 63 Bronze Argon Pilkington Energy Advantage (3) . This heat loss which is the thermal conductivity of the glass and window products, is known as the U-value. 5 87 8 8 71 7 <1 5. Please see the charts below for each product's specific U-Values: Energy Star Qualification Chart – All 2018 U-Factor / Solar Heat Gain Coefficient Chart Decorative Glass 1. 1 Argon and Krypton figures are based on a standard 90% and 92% fill respectively For multi cavity and other low-E combinations please contact Customer Service on 01207 288200 www. 89. 18/. For doors, particularly the > ½ lite category that glass patio doors fall under, the U-Factor criteria has changed from ≤ 0. 4 W/m2K. 65 Solar Heat Gain Coefficient 0. Low-E glass out-performs all other coatings and tints. 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. 7 1. Thickness. The U-value will be the same for that glass regardless of the window the glass is in. The overall U-Value is l')Stimated using area-weighted U. 74 20% UV Tdw-ISO 0. Thus an additional benefit of using Low-E glass is that it permits a higher relative humidity in a room before condensation will occur. 5 0. R-VALUE - Measure of resistance to heat gain or loss (insulative ability). com 1/4" (6mm) + 0,060 PVB + 1/4" (6mm) 9/16" LAMINATED GLASS DATA Cook County Central Campus Health Center Chicago, IL TG R53/33 on optiwhite R53/33 striped frit on optiwhite The Power of Quality Low-E Series Product Outboard - Inboard Substrate Visible Solar U-Value Shading (SC) Solar Heat 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. 2. The Solar Heat Gain Coefficient (SHGC) tells you how much heat from the sun is able to pass through the glass of the door or window. Phone:0086-400-089-8280; info@yongyuglass. Transmittance and reflectance values based on spectrophotometric measurements and energy distribution of solar radiation. 760". The complete Harvey Window + Door professional's U-Value2 (Imperial) K-Value2 (Metric) Shading Coeffi-cient3 Solar Heat Gain Coeffi- glass relative to 1/8-in. 67 1. U Value – Measurement rate of heat gain or loss through the U-values. 3 3. 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. 060" PVB, 1/4" glass 57; 61 65; 3150. U-FACTOR SHGC HARD COAT LOW-E (2 or 3) - ARGON. 48" x 60" 11/16" 2. 8 0. Now, in the above-noted code requirements, we had a window U-value requirement of 0. 282 U-0. 20 to 1. Compare insulation R-values before you buy. The lower the value (from 0 Builders, the U. The more similar the U-value of a unit’s components, the more similar the U-value of the finished product will be. 0 ci U-1. lSee assembly. Skip to Main Content. Noise Reduction Solution Charts The U-Value measures the rate of heat transfer through a window or other elements of a building’s envelope. solar energy transmittance & reflectance). (0. 5 85 8 8 65 7 <1 5. Most windows today have U-factors between 0. This is more of an engineering term used to designate the thermal performance of a system as opposed to a homogeneous material. 0 U-1. Professional's Guide. U-value is sometimes known as thermal transmittance. tecnoglass. The IGU assemblies include 4/12/4, 4/16/4, 6/12/6, 6/16/6, 8/12/8, 8/16/8, and 10/12/12 Values are averages for use as design guides, and were obtained from several guarded hot box tests (ASTM Standard C1363) on hollow-backed types and types made using backing of wood fiber, foamed plastic, and glass fiber. (4) The UV Transmittance is determined as an average for wavelengths 310 -380 nm. New Fineo vacuum insulated double-glazing has a U-value of just 0. 4. 74 (Double Glazed) 6 mm clear (SB60) / 6 mm Clear 24. Hot southern climates need only a 0. uk Cavity Fill Unit make up (mm) Overall IGU thickness (3 x 4mm) Glass 1 Glass 2 (Toughened Testing Data Notes. Where there is more than one value for any component of the building envelope, Online glass U-value, SHGC & shading coefficient calculator: V2. over laminated temp. 78 20. Out Refl. The lower the u-factor value, the higher the insulating performance of a building element. Use the following product selection tool to find specific glass products by their performance statistics. Is the glazing parameter that characterizes the heat transfer through the central part of the glazing, i. 12 10. 218 NR R-3. 7 0. For windows, skylights, and glass doors, a U-factor may refer to just the glass or glazing alone. 1-7/8" overall - 1/4" glass, 1/2" airspace, 1/4" glass, 1/2" airspace, 3/16" glass, . In other words, whole product performance. 7 — that’s 12. Click here to view the declaration of conformity to EN 673: 2011 for U-values. 5 U-factor is the rate at which a window, door, or skylight transmits non-solar heat flow. Measuring your home?s heat loss is not as complicated as you may think. It enhances the thermal performance of the glass. 74 25. The lower the u-value the more restrictive the fenestration product is to heat transfer; reciprocal of r-value. 96. 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 Thermal transmittance, called U-value, is the amount of thermal energy, measured in W (Watts) flowing through one m² (square meter) of a building component like a window, door, wall, or other part of the building structure if the temperature difference between both sides of the component amounts to 1 K (Kelvin), The unit of measurement is W/m²K. Assemblies with lower U-Values transmit less heat than those with higher values. Departures of ±50% or more from these values may occur. United States R-values are given in Imperial units (ft2 ºF hr/Btu), but R-values can also be expressed in Metric units. 42/. Values for each contribution by: U0 = (Uc 9·Acg + Ue ·Ae9 + U(A1) I (Acg + Aeg + A1) , (2) where the subscripts cg, eg, and f refer to, respectively, the center-of-glass, edge of-glass and frame. Heat loss is quantified by the thermal transmittance or U-value (U). Lower shading coefficient values indicate better performance 2 Values are based on comparison of Marvin Replacement double-hung window U-Factor for clear dual pane glass non-metal frame default values from the 2018 International Energy Conservation Code “Glazed Fenestration” Default Tables. To achieve optimally efficient U-Values, Low-E (low-emissivity) glass or Low-E coating in combination with double-glazed units are appropriate. 0 chen. Select the number and thickness of panes, air space Insulating glass unit (IGU) manufacturers report the overall, center-of-glass (COG), and edge-of-glass (EOG) U-factors for the IGU. g. 2021 IECC Only: A maximum U-factor of 0. Using the U-Factor data, the R-Value can be determined. New informative (non-mandatory) Annex B22, included with this addendum, provides an example procedure for estab- 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. 65 3. com 1-888-PPG-IDEA (1 VIRIDIAN GLASS GUIDE™: GLASS PERFORMANCE - SINGLE GLAZING Product Name Nominal Thickness Visible Solar UV Trans U Value SHGC Weight kg/m2 Selectivity Trans. NRG Energy Efficient Glass Range in 3 variants of single NRG 1 and doubled glazed NRG 2. Double-Hung – Dual-Pane Insulating Glass. Indicative U values for windows with wood or PVC-U frames εn is the emissivity of the low E glass. As the u-value decreases, so does the amount of heat that is transferred through the glazing material. Navigation Menu. By using our U-value calculator, you can easily compare how the use of different materials, or different thicknesses of materials, can impact the overall thermal performance of a construction. How to measure the U value. 26 in the Northern and North-Central climate zones. 7 Clear Hardcoat Numbers: U-Factor / Solar Heat Gain Coefficient x: Indicates Product Availability Indicates Product is Energy Star Qualified in Northern Zone Indicates Product is NOT Energy Star Qualified Glass Designs 6'8" Height Doors Glass Size (Inches) 25x66 25x51* 10x51 25x42* 21x35 25x35 15x38 10x42 10x8 Decorative Glass. Actual values may vary due to production tolerances. 82 2. 75 0. Sliding glass doors/French doors. It includes both solar energy transmitted directly plus any absorbed solar energy re-radiated and convected. 048 R-15. The following table gives centre pane U-values for the constructions and cavities shown. SOLAR HEAT GAIN COEFFICIENT (SHGC) Product Data Sheet Vitro Architectural Glass LEED® Credit Opportunities Possible Points LEED Credit Solarban® 90 Feature Path/Option Satisfied 18 Energy & Atmosphere (EA) Optimize Energy Performance Excellent SHGC, U-value and Tvis performance Whole Building Energy Simulation (Option 1) or Prescriptive Glass (in doors): The R-value for glass doors varies significantly based on the glazing type. Find out why in the seller's fact sheet on R-values. 3800-3900 Series Glass Package IG Thick Interior Glass Exterior Glass U-Value SHGC VLT U-Value SHGC VLT Clear 3/4" 2. 030" interlayer) 08 glass: Same as 04, with white interlayer 99 93 glass: Same as 05, with i89 coating on interior surface 05 glass: Tempered over tempered VS Tested Performance Information Glasscraft U-values The U-value of a sealed unit is determined by the elements that are used to make up the sealed unit. 75, the reciprocal U Home Blog Understanding glass: U Values, A U-value is a means of measuring ‘thermal transmittance’, i. 77 048 Series Awning Window 6. 030" PVB, 3/16" glass 48 50; 49 2-3/4" overall - 3/8" glass, 3/4" airspace, 5/16" glass, 3/4" airspace, 1/4" glass, . In cold climates, the best U-factor is anything at or lower than 0. 6 Clear Hardcoat low-E Air 2. 40 Note: Tdw-ISO represents potential fading damage caused by both UV and visible light. sg Testing 18/08/2020 27/05/2022 calculator , Glass , shading coefficient , shgc , u-value 0 Comment Related services Glass optical & thermal properties The document provides a reference table of common building materials and their corresponding U-values. Glass Only performance data for our Full range of Glass Products. Total System. It quantifies how well a material can insulate against heat loss or gain. U-Values range anywhere from 0. 0476. Architectural Testing, Inc. Join as we dive deeper to understand the differences and why this is important for both commercial and residential properties. For doors which are half-glazed the U-value These tables include metric glass performance for monolithic, laminate and insulating glass units (IGUs). in glass u value is approx. . 2-hr-°F (thermal break) Frame U-Factor includes heat transfer through surfaces perpendicular . (3) Comfort Indoor Glass Temperatures are for the center portion of the glass. 5 85 8 8 64 6 <1 5. U. On top of that, you will also find a U-value to R-value chart for U-values ranging from U At Energlaze we specialise in providing glazing solutions to increase the comfort of your home and lower your heating bills. cooled air. 030, we get an R-Value for the window of 3. 0 ci R-20. U-value is a measure of how well a material conducts heat, with a lower U-value indicating better insulation. 29 BTU/ ft. Values include; Colour, Visible Light Transmittance and Reflections, UV Blockage, U-Value, SHGC, Selectivity ratio, Acoustics and Weight: AGG Performance Data - Glass Only. 71 0. Calculate R-Factor To calculate the R-Value, you must first determine the U Glass Handling and Safety Guide . 3 2. Finally, there is U-value, known officially as thermal transmittance. 065 R-19. ft . 5 software, NFRC 100 – 2010 conditions have been used. 10). 4 %âãÏÓ 2265 0 obj > endobj xref 2265 31 0000000016 00000 n 0000002149 00000 n 0000002496 00000 n 0000002643 00000 n 0000003095 00000 n 0000004072 00000 n 0000004123 00000 n 0000004162 00000 n 0000010342 00000 n 0000010947 00000 n 0000011348 00000 n 0000011784 00000 n 0000011863 00000 n 0000012455 00000 n The Center-of-glass U-value is a measurement of ONLY one location on the glass. 33. 57 246 Series Sliding Door 6. In many cases, you will have to convert the U-value or U-factor to R-value. 3 0. 0. 6W/m²K or Window Energy Rating = Band A. Eco-friendly, resulting in U-Value Chart Triple Glazed Units 6 8 10 1412 16 18 20 Clear Float/Air/Clear Float/Air/ Clear Float Clear Float/Argon/Clear Float/Argon/ Clear Float Clear Float/Air/Climaguard A 1. Chart shows relationship When thinking about insulation, the key metric you have to think about is the insulation R-value. Because Low-E glass improves (lowers) the IG unit U-Value, using Low-E glass will increase the unit’s interior glass surface temperature. 15 12. Values are for thermally broken or thermally unbroken doors. 280 NR Attic and Other U-0. Total Unit Factors determined per NFRC-100 (National Fenestration Rating Council). 125" thick, so the air gap for a 1" IG with two panes of glass will be approximately 0. The lower the U-Value is, the The U-Value of glass is the same as the U-Factor. Solar Heat Gain Coefficient Table of U-Values . 78 15. Keyword search through the glass descriptions. To calculate the U-value of a glass unit, you need to consider three main factors: Thermal resistance of the glass panes (Rg): The thermal resistance of each glass pane depends on its thickness and thermal conductivity. 3, in Climate Zones 1, 2, and 3. Chevron Glass Pty Ltd has taken all care but accepts no responsibility for information contained within these charts. 25, while triple-pane windows may have U-values around . Specifically engineered for use on the interior surface of an IGU, Sungate ThermL™ low-e coating is designed to retain indoor temperatures by slowing down Each pane of glass is typically 0. To help you choose adequate insulation, we have summarized the R-values of 51 most common insulation materials (check the insulation R What Impact Can These Technologies Have on U-Value? Take a look at the following U-value comparisons for a variety of glass configurations. and center of glass U‐values for various Vitro glass products. 6: Aluminum Full View: 521: Low E 04 glass: Tempered over laminated HS (0. The R value of our Thinline series (3 1/8 inch thick) glass block when installed with mortar is 1. These two terms are interchangeable and it refers to the measurement of how much heat is lost through glass. 0 U-0. 5 W/m 2 K. 50 1. 0 2. ) The lower the U-Factor, the better the insulating value. R-values, rather than thicknesses, can be compared for different materials. 22 to 1. Emittance of ordinary (pyrolitic Vitro Architectural Glass Aesthetic Description Solarban® 60 solar control, low-e glass by Vitro Architectural Glass (formerly PPG Glass) was engineered to control solar heat gain, which is essential to minimizing cooling costs. 840 0. For example, a U-value of 0. 7 Clear Clear Argon 3. Importance of U-Value: NFRC emphasizes . U-factors of fenestration and the solar heat gain coefficient (SHGC) of fenestration. Required Combination Types for Durable & Green Reinforced or Prestressed Concrete Elements U-Values are quoted in W/m²/K, rounded to the nearest 0. 20, which NFRC-certified labs calculate using thermal measurements from the center and edges of the glass, the frame and along any dividers the window may have. Third Pane . 0 LESS EFFICIENT MORE EFFICIENT/MORE SAVINGS. 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. The table lists U-values for walls, doors, roofs, floors, windows, and cold mass materials like concrete and steel. 5% more energy efficient than triple glazing. 6 0. It’s the inverse of the R-value commonly used for insulation. Department of Energy, American Society of Heating Refrigerating and Air Conditioning Engineers, and the National Fenestration Rating Council are used for the Sec-tion 7 test cases. Colour Charts. 25 or lower. There are a number of warm-edge spacer designs available, all of which thermally break the metal-to-glass contact point to some Float Glass U-Value = 1. Refl. It also notes that U-value has an inverse Find technical specifications, installation instructions, construction specifications (CSI), CAD/BIM files and parts manuals for all Marvin products. 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. ENERGY STAR® zones and U-Factor, SHGc, and VT values, along with ratings for Air Infiltration, Water Resistance, DP and Structural Test Pressure. 26 1. 5 1. Just because a unit is triple glazed, it How Do You Calculate a Window’s U-Value? When calculating a window’s U-value, there are three key factors to consider: Uf Value: The frame’s thermal performance Ug Value: The glass panel’s thermal performance PSIG: The glass edge’s thermal performance These three aspects, along with a handful of other measurements such as the window’s opening A large amount of glazing configurations means the perfect glass can be yours. As the U-value decreases, so does the amount of heat that is transferred through the glazing material. uk Glass 1 Glass 2 Cavity Fill Cavity Width (mm) 6 8 10 12 14 16 18 20 Clear Clear Air 3. 2/A440, TAS201, 202, and 203; OSHA regulations; various ASTM methods. However, the Types of Glass_____ 3 annealed Glass Heat-strengthened Glass Tempered Glass laminated Glass Insulating Glass Warm-edge spacer Tinted Glass vs. ft2. This means it allows heat to For opening glass walls, the U-Value measures the heat that escapes from inside of the house, through the glass wall system, to the outside. National Processing Capabilities . What is the best R-value for windows and doors? Improved education and awareness of the cost of heating and cooling that escapes from poorly insulated components and glass panes have led to window and door U-Value. F/Btu. U-Factor Describes the resistance of the door glass to conducting heat and cold through the unit. 17. 0. A leader in tools for the glass industry. 60 U-factor, while mixed climates (with high temperatures in summer and low temperatures in winter), require a U-factor at or equal to 0. 10 equals an R-value of 10 (1 divided by 0. 30: 2. 30 The lower the U-Factor, the greater the insulation value. 5 Exterior tint may vary from unit to unit. It provides year round performance and comfort. 29. The average C. Impact-rated IG's will have a pane of glass that is approximately 0. The U-value is the inverse of the R-value. AX550 Moving Glass Walls; AX450 Moving Glass Walls; A250 Thermally Improved Aluminum; Learn about patio doors Patio Doors 101; New Construction Doors; Replacement Doors; Image. 866. By filtering by Visible Light Transmission, Solar Heat Gain, Reflectance and U-Value you can find a product that meets your requirements for any given combination. Therefore, R-Value multiplied by U-Value always equals 1. associated U-Value performance improvement 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. 59/. The lower the value, the greater is the insulating value. Simply select the construction type and use the drop down menus to change individual components or corrections in the template. 9 Light to Solar Gain ratio (LSG) 0. com; English. SHGC (Solar Heat Gain Coefficient). It is irrelevant to all optical properties related to solar radiation (e. 750" to 0. The lower the U-value, the better. The lower the U-value the better insulation performance of the unit, which is why our customers often want lower U-values, because they are proof of better performing products. The R-Value is the thermal resistance of the window or patio door glass to heat flow. Glass Thickness. K) (BTU/hr. Please see below the U-value Chart for the glass selections above. 8 1. 1 2. The lower the U-value, the greater the polycarbonate’s resistance to heat flow and the higher the insulating value. Read more about the tools below spacer. ENERGY STAR Qualification Chart Glass U-value is important in winter conditions, due to the large indoor/outdoor temperature difference in winter. 34 . Typical value 0. R-values measure a product’s resistance to heat loss. 1(1) DEFAULT U-FACTORS FOR DOORS; Door Type. Please see the Glass type; U-value is an inverse measure; the lower the U-factor, the better insulated the window. 64 0. 063 U-0. Sustainable using lower CO2 footprint from manufacturing to lifespan. 08 CLEAR GLASS 1. 20 . The lower the U-Value, the better the window acts as a heat insulator. Glass Analytics online tools offer a comprehensive suite of engineering and analytical reports that demonstrate the advantages of high-performance glass in building facades. 70 1. Benefits. 30 Selectivity 1. Look for a higher R-Value for a more energy efficient product. 340" in addition to a standard pane of 0. 08 Our spec sheets offer a detailed look at individual products, and include information on product features, options, and performance data. 3mm Clear 2. Opening (Viewed from Outside) 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. 29 Pilkington Energy Advantage (2) Argon . 45 R-value equals a U-value of 0. Download. 35, not 0. 1 to 1. Below, you will find a U-value to R-value calculator that automatically converts U-factors to R-values (just insert U, and get V). 01-116-45. Solar Heat Gain Coefficient (SHGC): A measurement of the sun's heat energy that passes through the glass. The prescriptive path means the window product must meet a U-Factor value that’s ≤ 0. 88 1. 1 (800) 929-3667 (Door) Request a Quote Find a Distributor. All performance data is determined using LBL window 7. 89 The gas mixture is assumed to consist of 90% argon and 10% air Alternatively, specify Pilkington Insulight™ Therm 1. The U-Factor rating measures how well a product keeps heat trapped inside, with a lower number meaning a higher percentage of heat is retained. 6 What is a U-Value? “U-value is the measure of the overall rate of heat transfer through a particular section of construction. NFRC is the National Insulation Materials Specification Chart from the NIA National Insulation Training Program This chart provides the reader with material properties as typically specified in ASTM material specifications and is a guide to performance characteristics but may not be Double glazing with low emissivity glass (with air cavity) U value = 1. U-FACTOR U-factor is a measure of heat lost and indicates how well a window, skylight or patio door can withstand heat transfer. So called 'Low-emissivity' or 'Low E' glass offers improved thermal insulation denoted by very low U-values. 47. This is crucial as we look to deliver more energy efficient buildings. VLT % = Visible Light Transmission CR = Condensation Resistance ER 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. 48 SHGC 0. 125". 2/Air/ Clear Float U-Value. So we take our R-Value of 21 and divide one by that number, and we get a U-Value of . R-Value designates a window’s resistance to heat flow. It is Pella manufacturers stipulate that ratings conform to applicable NFRC procedures for determining whole product performance. 15 and 1. Center-of-glass coefficient Center-of-glass U-Values are calcu Cardinal's LoĒ³-366 glass is the new standard in energy efficiency. 4000; 5000. Generally, thicker glass panes have higher thermal resistance. pppideascapes. 4 0. All values calculated using Window 7. Using the above mentioned U-values, you can quickly measure how efficient your R-value is the reciprocal of U-value or U-factor (the Heat Transfer coefficient). 7 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. Doors that do not have NFRC certification shall be assigned the appropriate U-fac- tor from Tables A107. The higher the R-value, the greater the insulating power. 27 . INSULATED LOW E GLASS UNITS SHGC S C U Value LOW E GLASS: Glass which has a Low E (Emissivity) coating provides greater insulation by reflecting the a building in comparison to 3mm Clear glass. 14 Decorative Glass – Wrought Iron 2018 U-Factor / Solar Heat Gain Coefficient Chart. U-factors on windows generally range from 0. ENERGY STAR does not consider center-of %PDF-1. Summer daytime U-value and winter nighttime U-value are two common derivatives The higher the VT rating (value from 0 to 1), the more light the glass lets into the home. It is 1Higher R-values mean greater insulating power. 25 SHGC 0. Note: Spandrel Glass is not for vision wall areas. The ROCKWOOL U-value calculator is backed up by around 2,500 pre-determined calculations which show the overall performance of a wall assembly, or floor and roof build-ups featuring ROCKWOOL insulation solutions. 2-hr-°F (low-e IG)-Edge of Glass (EOG) Typical value 0. All performance data is calculated using LBNL Window 7. 57 0. Find the perfect glass solutions for your projects today. The U-value, usually expressed in S. As we have talked about in the post about types of insulations here different materials and types of insulations have different R-values. There are thousands of choices for entry and patio. 25. 51. 37 SHGC. The gas mixture is assumed to consist of 90% argon and 10% air. Interior. 1. Laminated glass is a safety glass product and can be used in insulating (double • Performance Charts Note: G. 7 %âãÏÓ 44 0 obj > endobj xref 44 48 0000000016 00000 n 0000001586 00000 n 0000001731 00000 n 0000001787 00000 n 0000002944 00000 n 0000003074 00000 n 0000003589 00000 n 0000004168 00000 n 0000004570 00000 n 0000004998 00000 n 0000005347 00000 n 0000005460 00000 n 0000005993 00000 n 0000006615 00000 n 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. , an Intertek Company (Intertek-ATI) was contracted to perform U- The method gives overall product 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. Thus, a single-paned window’s U-Value with a basic aluminum frame is above 1, usually around 1. Within ∓ 10% ≤ to Shading:. The lower the U-value, the better the insulation. 69. 15 . I. 8. 73 (Double Glazed) our glass performance calculator at www. These values are available for all Vantage aluminum windows and aluminium door products as part of their WERS rating. Hence: the lower the U-value the better (similarly, the higher the R-value the better). The lower the U-Factor, the better for thermal performance. e. 00 023 B model 76 Float/Argon/Soft Coat/Warm Edge Spacer 28 1. 19 1. 65 2. Production samples structurally tested and labeled in accordance with one or more of: AAMA/WDMA/ CSA 101/I. Less than or equal to. U-value. 41 0. 0 Walls, Above Grade Mass U-0. 063 R-15. 30. Glass Type Emissivity (low‐e) U‐Value* (air) U‐Value* (argon) Clear 0. A lower U-Value indicates better insulation properties and is particularly important in colder climates where thermal insulation is critical. Glass has a low R-value, so by "The insulation or R value of the Premiere Series (3 7/8 inch thick) glass block when installed with mortar is 1. The U-value, SHGC and shading coefficient of a glass is strongly dependent on One Inch Insulating Glass Unit Comparisons with PPG Architectural Glass Transmittance Reflectance U-Value. WER & U-value Chart Windows & Doors Inliten 70mm System - Tilt N Turn Double Glazed Name Outer mm Glass Unit Spec Unit mm U-value (Uw) Solar Gain Air Leakage Label No A model 60 Float/Argon/Soft Coat/Warm Edge Spacer 28 1. The lower the number DM U-Value Calculation (Excel, 272 KB) DM BLDG Glazed Schedule (Excel, 236 KB) DM BLDG AC Unit Schedule (Excel, 3 MB) DM BLDG Solar Power Calculator (Excel 222 KB) GB insulation sections for Villas: Type 1, Type 2, Type 3, Type 4, Type 5, Type 6. 21/. 32 shall apply in Climate Zones 5 through 8 to vertical fenestration products in buildings located either: Above 4,000 feet in elevation, or 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. U-value scores typically range from 0. Read This Before You Buy What you should know about R-Values The chart shows the R-value of this insulation. 9 2. units (Système Internationale d’Unités) of W/m²K, is the heat flux density through a given structure divided by the difference in environmental temperatures on either side of the structure in steady state conditions. 73 30. Glass Designs 6'8" Height Doors Glass Size (Inches) Decorative Glass Laminated Glass U Value Chart Manufacturers, Factory, Suppliers From China, We honor our core principal of Honesty in business, priority in service and will do our best to offer our customers with high quality products and excellent service. Solar Heat Gain Coefficent is the fraction of incident solar radiation entering a home through the windows. Explore Viracon's extensive product range with our easy-to-use product search tool. 0mm) thick clear glass under the same design conditions. 922. The coatings are designed to minimise U-FACTOR R-VALUE 5 4 3 2 1. 8 w/m2K. 40 CENTER OF GLASS U-FACTORS & SHGC VALUES: SYRACUSE COMPANY : Author: Kathy Rung Created Date: 10/3/2016 4:52:02 PM 2009 IRC Only: In the 2009 IRC, the maximum U-factor value is 0. Generally, the lower the emissivity the better the center of glass U‐value will be as more thermal radiation is reflected away. (3. Sungate ThermL™ U-Value Enhancing Low-e Glass. Where to Buy | Find A Contractor | Become A Certified Contractor | My Favorites (0) | Contact Us | 1-800-426 Low U-Factor High Solar Heat Gain: Low E2: Features a double layer of silver on an inside surface of IG glass. 84 2. Shading Coefficient. A good U-value does not indicate a surface quickly allowing heat to pass through it. R means resistance to heat fl ow. 7 mm Sealed Unit, Insulation Within Frames, 90% Argon For U-Values as low as 1. 26/. This coating option provides better protection against radiant heat transfer Opaque Elements Maximum R-Value Maximum R-Value Maximum R-Value Roofs Insulation Entirely above Deck U-0. Thus, if the thickness is 1 inch, and the K-value is 0. U Value: SHGC: Selectivity: Glass Type: Notes. 00 024 For doors with larger glass, the U-Value and the Solar Heat Gain Coefficient needed to qualify change depending on whether you live in the Northern or Southern part of the country. The center-of-glass is the Project managers in the glass and glazing business rarely receive training on the thermal performance of windows, energy code requirements, and thermal requirements in the design specifications. A high U-value means a high overall heat transfer. 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 PPG Monolithic Glass Comparisons U-Value5 EN 673 (W/m2*K) Table of Performance Values*1 Glass Thickness Transmittance2 Reflectance2 Shading Coefficient6 Solar Heat Gain Coefficient7 Light toNFRC U-Value Solar Gain (LSG)8 Ultra-violet % Visible Light % Total Solar Energy % Winter Night time Summer % Day time Total Solar Now, new Vitro products, like Sungate ThermL™ low-e coating and VacuMax™ Vacuum Insulating Glass (VIG) allow for even better R- and U-values than ever before. 8 operated by Lawrence Berkeley National Laboratory (LBNL) using International Glazing Database (IGDB) v102. 3. 43 0. U-value is a nighttime thermal property. 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 . U-Value (COG) W/m2K 3. (5) UV Damage Weighted Transmittance (Tdw) is the weighted average for wavelengths 300 - U-values allow us to set clear targets for how well insulated constructions must be. 76 Visible Light 81% 59% UV Tdw-ISO 0. 55 Visible Light 72% U-Value 0. Single-glazed glass doors might have an R-value as low as R-1, while double or triple-glazed doors with low-E coatings and inert gas fillings, such as argon or krypton, can reach R-values up to R-3 or higher. Glass 1 Glass 2 Cavity Fill Cavity Width (mm) 6 8 10 12 14 16 18 20 Clear Clear Air 3. 034 R-30. 12 8. It is more A measure of heat gain or heat loss through glass due to the thermal conductance and the difference in indoor and outdoor temperatures. Therefore, you want to look for a low number, with the range being 0-2. The lower the U-value the better the insulation %PDF-1. 8 2. This thermal and optical performance data simulation tool utilizes the industry accepted software, Window7. The lower the U-value the better the thermal performance of the glass. SunGuard SN 68 low-E coated glass provides a beautiful, natural look with balanced thermal performance and a 0. 61 4. 25/. CLOSE . Choosing the wrong U-factor for your climate can lead to inefficiency and high utility bills. 3333. 24. 614 U-0. Clear 6. 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 GLASS SIZES AND OPTIMIZED U-VALUES U-VALUE U-VALUE METRIC IMPERIAL GLASS TYPE 2SPACER 2 (W/m . Performance documents for altitude limits, NFRC ratings, center of glass, joining window load table, air infiltration, and more. It basically tells you how well a door or window insulates the home. The u-values for spandrel glazing are the same as the corresponding vision unit. 45 Gray Argon Pilkington Energy Advantage (3) . It has 30% less weight than triple glazing windows. This can improve Window and door energy Data resources. See the ENERGY STAR Qualification Charts below to find qualified products. U-VALUE The U-value is the measure of how much heat is transferred through the window. Winter and Summer U-Values are the only performance values available for spandrel glazing. NFRC U-factor ratings, however, represent the entire window 2. The chart below shows the “spectrally selective” nature of the LoĒ³-366 coating. 48 0. Solar Control Low-E Glass Standard Clear Insulating Glass Solarban® 60 (2) Insulating Glass U-Value 0. Glass Type. 32 . Quick Summary:At a quick glance - the U-value is the measure of how well a material resists heat and the IG unit thermal transmittance (U-Value). In Trans. claytonglass. 4W/m²K: U-Value = 1. You can use our free online U-value calculator to give you quick access to accurate U-values. Outperforms tinted glass. R-Value is the inverse (R=1/U) of the U-Factor. 9 1. The end value is in watts per square metre per Kelvin W 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. S. CALL FREE: 0800 876 6170; Today's opening times: 9am - 6pm. The second path, the It’s important to note, that these values are “whole window values”, not glass alone. The better-insulating a The quick response is as follows: ¼” (6mm) laminated glass has an approximate winter nighttime U-Value of 1. If we do our reciprocal calculation using a U-Value of . The predominant R-values of insulation installed in or on ceilings, roofs, walls, foundation components such as slabs, basement walls, crawl space walls and floors and ducts outside conditioned spaces. 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. It is expressed as Watts per square metre Kelvin W/m2 K. The higher the R-Value rating, the more energy efficient the unit is. 3mm Clear 0. 25, then the R-value is 1 divided by 0. Within ∓ 10% ≤ to SHGC:. 53 Tuv (%) VX350 Moving Glass Walls; V300 Trinsic™ Series; Fiberglass. low-e Coated Glass condensation and reducing u-values in IG units. Call us with any questions! 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. 7 The shaded boxes Values are center of glass calculated using LBNL Window 7 per NFRC100 conditions. 1 1. 47 0. 3 software and represents center of glass performance data. 44 0. 7 2. On a clear-over-clear double-glazed configuration, its superb 68% visible light transmission with only 11% reflectivity can help illuminate interiors, expand views, and connect indoors and out. 23/. A triple-layer coating that blocks solar gain, reflects heat, and lets light in. U Value. how easily heat gets through windows and doors. Insulated Glass. To calculate a U-value, the heat transference rate is divided by the temperature difference on either side of the window or door. Variations and Strategies for Improving U-Value. The overall IGU U-factor can be determined using the EOG and COG values and will be affected by the IGU make-up, including spacer type, IGU gas fill type, coatings, overall thickness, etc. 030" interlayer) 06 glass: Tempered over laminated HS (0. 580 NR 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. 0 ci U-0. 1(4). 25, or 4 (leaving off the units for brevity). 20. 6W/m²K Thermal Spacer add on U-Value = 1. 0 W/m²K. 2 0. 65 0. to the glass plane. U-value: Measures the ease of heat flow (a lower value is better) Achieving lower U-values and higher R-values in glazing is key to meeting high performance targets, and VIG is a powerful solution. Lower U-values indicate better insulation and energy efficiency. 1(1) through A107. 55 0. 72 3. A number which describes, in specific terms, the ability of a material or assembly to transmit heat from outside to inside surfaces. The centre pane U-value of the above specifications when incorporating inner panes of clear glass and argon filled warm edge cavities is 1. In traditional double-paned insulating glass, heat flows through the air- or gas-filled gap between panes. Shading Coefficient (SC): A measurement of the heat gain through the glass compared to a single lite of clear 1/8" glass. 8 ci Metal Building U-0. Energy-Efficient External Doors. Argon fill is 90% and air fill is 100%. zeai slvur rlyqcpib mejium oqjjjv dtbflc izzaof jiopo byvup tixafo eah fis zkvxq yyid dmyaatd