ENVIRONMENTAL PRODUCT DECLARATION as per ISO 14025 and EN 15804+A2Owner of the Declaration VELUX GroupPublisherInstitut Bauen und Umwelt e.V. (IBU)Programme holderInstitut Bauen und Umwelt e.V. (IBU)Declaration numberEPD-VEL-20250345-CBI1-ENIssue date11/07/2025Valid to10/07/2030VELUX polyurethane roof windows GPU, VIU, GIU (62 triple glazingconfiguration)VELUX Groupwww.ibu-epd.com | https://epd-online.com
General InformationVELUX GroupVELUX polyurethane roof windows GPU, VIU, GIU(62 triple glazing configuration)Programme holderIBU – Institut Bauen und Umwelt e.V.Hegelplatz 110117 BerlinGermanyOwner of the declarationVELUX GroupÅdalsvej 992970 HørsholmDenmark Declaration numberEPD-VEL-20250345-CBI1-ENDeclared product / declared unitThe declared unit is 1 m2 of a polyurethane roof window with triple glazingconfiguration (62). The declared unit is based on the size 1.14 m x 1.60 m(SK10), which is the closest available size to the standard size 1.23 m x1.48 m (DS/EN 17213:2020).This declaration is based on the product category rules:Windows and doors , 01/08/2021 (PCR checked and approved by the SVR)Issue date11/07/2025Valid to10/07/2030Dipl.-Ing. Hans Peters (Chairman of Institut Bauen und Umwelt e.V.)Scope:The EPD is a representative EPD covering part of VELUX polyurethaneroof windows as specified in detail in the product description. The productsare manufactured by the VELUX Group at different production sites inEurope for sale throughout Europe. The windows' production take place inGermany, Denmark and Poland.The owner of the declaration shall be liable for the underlying informationand evidence; the IBU shall not be liable with respect to manufacturerinformation, life cycle assessment data and evidences.The EPD was created according to the specifications of EN 15804+A2. Inthe following, the standard will be simplified as EN 15804.VerificationThe standard EN 15804 serves as the core PCRIndependent verification of the declaration and data according to ISO14025:2011 internally X externallyFlorian Pronold (Managing Director Institut Bauen und Umwelt e.V.)Dr.-Ing. Nikolay Minkov,(Independent verifier)Environmental Product Declaration - VELUX Group - VELUX polyurethane roof windows GPU, VIU, GIU (62 triple glazing configuration)1
ProductProduct description/Product definitionThe VELUX polyurethane roof windows are skylight windowproducts for sale in the European market. The product familycovers a range of product varieties as specified in the tablebelow. All windows have a polyurethane and woodenframe/sash. Some windows can be opened (venting), whileothers cannot be opened (fixed). The handles and handlebarsare made of aluminium, while the hinges are made of steel(galvanised, stainless). The calculations are based on therepresentative window type named GPU. In the LCA, the GPUwas assessed to be a conservative choice for a representativewindow type.The EPD is based on the triple glazing configuration (62).Only the window modules are included, and any appliedwindow operators, installation products, accessories, etc., arenot part of the EPD. These are available as separate EPDs,that can be used in combination with this EPD.For the placing on the market of the product in the EuropeanUnion/European Free Trade Association (EU/EFTA) (with theexception of Switzerland) Regulation (EU) No. 305/2011 (CPR)applies. The product needs a declaration of performance takinginto consideration EN 14351-1:2006+A2:2016, Windows anddoors - Product standard, performance characteristics - Part 1:Windows and external pedestrian doorsets. For the applicationand use, the respective national provisions apply.ApplicationVELUX polyurethane roof windows are used in renovation andnew builds. Either installed as a single window or in acombination of multiple windows.Technical DataThe Declaration of Performance, including relevant technicalspecifications and test methods/test standards, can bedownloaded from the website www.velux.com/ce.The performance values are specific for each polyurethane roofwindow variant covered by the EPD. The declared values in thetable relate to the reference product variant GPU with triple-glazed configuration 62 (GPU --62).Constructional dataNameValueUnitReaction to fireD-s2,d2classAir permeability acc. EN122074classResistance to wind load,(for window width >1140mm or height > 1398 mmno performance isdetermined)C3classResistance to snow loads8 mm toughened - 11mm - 3 mm heatstrengthened - 11 mm -6.8 mm laminated floatmmWater tightness acc. EN12208 unprotected /protectedE900classImpact resistance (forwindow width<550mm orheigh<778mm noperformance is determined)3classAcoustic performance42 (-2;-5)-Load-bearing capacity ofsafety devicespassed-Thermal transmittance, 90degree installation acc. toEN 10077-1/20.96W/(m2K)Solar factor0.47-Light transmittance0.68-Product performance data in accordance with DS/EN 14351-1:2006+A2:2016, Windows and doors - Product standard,performance characteristics - Part 1: Windows and externalpedestrian doorsets.Base materials/Ancillary materialsThe main components of the polyurethane roof window are theglazing unit (made of mainly laminated and tempered glass),frames/sashes (made of polyurethane and wood), hinges(made of steel) and handles/handlebars (made of iron). Thepackaging of the products consists mostly of cardboard withpaper inserts and galvanized steel.NameValue UnitGlazing unit (2-layer)54%Wooden frame/sash11%Polyurethane frame/sash8Steel components (galvanised and stainless)14%Aluminium components3%Other components (including packaging)4%Packaging6%The polyurethane components are produced internally inVELUX facilities, located in Poland, Denmark, Slovakia andGermany. The wooden components (sashes, frames) areproduced internally in VELUX facilities, located in Hungary,Poland, and Denmark. VELUX receives sawn pine wood (dried)and processes it (sawing, cutting, etc.) into lamellas of differentquality. The lamellas are then glued together (lamination) andprocessed into profiles (cutting them into the correct size,cladding, drilling, etc.). VELUX produces the glazing units insites located in Hungary, Denmark, France, and Germany. Aftertheir production, the glazing units join the window assemblyprocess. Finally, the frames/sashes, glazing unit and the rest ofthe components (delivered by suppliers) are transported toVELUX assembly sites in Germany, Denmark and PolandEnvironmental Product Declaration - VELUX Group - VELUX polyurethane roof windows GPU, VIU, GIU (62 triple glazing configuration)2
where they are assembled into the final window product.This product/article/at least one partial article containssubstances listed in the candidate list (date: 23.08.2023)exceeding 0.1 percentage by mass: NO.Reference service lifeNo reference service life (RSL) is defined for the roof windowsbecause the use stage modules are not included in the EPD.LCA: Calculation rulesDeclared UnitMultiple product dimensions are represented by this EPD (seeproduct description). The declared unit is 1 m2 polyurethaneroof window and calculated based on the size 1.14 m x 1.60 m(SK10), which is the closest available size to the referencewindow size (1.23 m x 1.48 m based on EN 14351-1). The GPUvariant has the largest weight per m2 in the product group.Since the frame/sash construction is alike across all variants inthe product group, the parts that set the variants apart areprimarily the window-operation components, such as hinges,handles and ventilation flaps. These components are to a highdegree metal-based, and the worst-case product can thus beidentified by the weight of products with a similar size andglazing unit. The heavier the product, the larger the content ofmetal. Therefore, the GPU variant can be considered morerepresentative as a worst-case scenario for the windows group.Declared unit and mass referenceNameValueUnitDeclared unit1m2Grammage57.7kg/m2Data quality and a sensitivity analysis show that the results arerobust with regard to data quality and appropriateness. There islow variability of production processes, and product variationshave a limited influence on the results.System boundaryThe type of the EPD is "cradle to gate - with options" includingthe modules C1-C4 and D. The following life cycle phases wereconsidered:Product stage:• A1 - Raw material supply: extraction and processing,production of the pre-products (e.g. laminated glass,sawn pine wood, metal/plastic components, sealantsetc.) and sales packaging components (e.g.,cardboard).• A2 - Transport: Transport of pre-products and packagingcomponents to the processing or assembly sites, as wellas internal transportation of components between sites.• A3 - Manufacturing: The wooden frames/sashes andglazing units are produced internally at VELUXproduction sites. Subsequently, the final production andassembly of the windows takes place, which involvesactivities such as shortening of profiles, drilling of holes,clamping and glueing, mounting of gaskets, brackets,panes etc.End of life stage:• C1 - De-construction/demolition: deconstruction of thewindow with the use of an electric screwdriver andmanual work.• C2 - Transport: transport of window materials to MaterialRecovery Facilities (MRF) and then to incineration,landfill or recycling facilities. • C3 - Waste processing: sorting of waste, recycling(metal and glass waste), incineration (plastic and woodwaste) and landfill (metal, glass, wood and plasticwaste).• C4 - Disposal: disposal of all materialsBenefits and loads beyond the system boundaries:• D - Reuse, recovery and recycling potential: benefitsfrom plastic and wood waste incineration processes andmaterial recycling of metal and glass.For the environmental impact, the use of green electricity wascalculated. The proportion of the electricity demand covered bygreen electricity in the total electricity demand is 100 %. Thesource of electricity is wind energy and the emission factorused is 0.014 kg CO2 eq. / kWh.Geographic RepresentativenessLand or region, in which the declared product system ismanufactured, used or handled at the end of the product´slifespan: EuropeComparabilityBasically, a comparison or an evaluation of EPD data is onlypossible if all the data sets to be compared were createdaccording to EN 15804 and the building context, respectivelythe product-specific characteristics of performance, are takeninto account. Average secondary datasets were retrieved fromthe Managed LCA Content (v2024.2) and Ecoinvent (v3.10)databases.LCA: Scenarios and additional technical informationCharacteristic product properties of biogenic carbon6.92 kg of wood is used in window frames/sashes and 0.05 kgof paper inlet is used per declared unit. For the packaging, 3.10kg of cardboard and 0.008 kg of paper insert are used perdeclared unit.Note: 1 kg of biogenic carbon is equivalent to 44/12 kg of CO2.Information on describing the biogenic carbon content atfactory gateNameValue UnitBiogenic carbon content in product3.18kgCBiogenic carbon content in accompanyingpackaging2.48kgCNote: 1 kg of biogenic carbon is equivalent to 44/12 kg of CO2.The construction process stage and the use stage modules arenot declared. However, the quantity of packaging generated inmodule A5 is declared as scenario information. Environmental Product Declaration - VELUX Group - VELUX polyurethane roof windows GPU, VIU, GIU (62 triple glazing configuration)3
Scenario information for packaging generated in moduleA5NameValue UnitCardboard packaging for waste treatment3.10kgPaper packaging for waste treatment0.008kgSteel packaging for waste treatment (galvanised)0.005kgEPS packaging for waste treatment0.29kgLD PE film packaging for waste treatment0.011kgEnd of life (C1-C4)NameValueUnitCollected as mixed construction waste56.25kgRecycling20.09kgEnergy recovery12.7kgLandfilling23.45kgReuse, recovery and/or recycling potentials (D), relevantscenario informationNameValueUnitWood incinerated95%Plastic incinerated95%Paper incinerated95%Metal recycled95%Glass recycled30%Environmental Product Declaration - VELUX Group - VELUX polyurethane roof windows GPU, VIU, GIU (62 triple glazing configuration)4
LCA: ResultsDESCRIPTION OF THE SYSTEM BOUNDARY (X = INCLUDED IN LCA; MND = MODULE OR INDICATOR NOT DECLARED; MNR= MODULE NOT RELEVANT)Product stageConstructionprocess stageUse stageEnd of life stageBenefits andloads beyondthe systemboundariesA1A2A3A4A5B1B2B3B4B5B6B7C1C2C3C4DXXXMNDMNDMNDMNDMNRMNRMNRMNDMNDXXXXXRESULTS OF THE LCA - ENVIRONMENTAL IMPACT according to EN 15804+A2: 1 m2 VELUX polyurethane roof windowParameterUnitA1A2A3C1C2C3C4DGWP = Global warming potential; ODP = Depletion potential of the stratospheric ozone layer; AP = Acidification potential of land and water; EP =Eutrophication potential; POCP = Formation potential of tropospheric ozone photochemical oxidants; ADPE = Abiotic depletion potential for non-fossilresources; ADPF = Abiotic depletion potential for fossil resources; WDP = Water (user) deprivation potential)RESULTS OF THE LCA - INDICATORS TO DESCRIBE RESOURCE USE according to EN 15804+A2: 1 m2 VELUX polyurethaneroof windowParameterUnitA1A2A3C1C2C3C4DPERE = Use of renewable primary energy excluding renewable primary energy resources used as raw materials; PERM = Use of renewable primaryenergy resources used as raw materials; PERT = Total use of renewable primary energy resources; PENRE = Use of non-renewable primary energyexcluding non-renewable primary energy resources used as raw materials; PENRM = Use of non-renewable primary energy resources used as rawmaterials; PENRT = Total use of non-renewable primary energy resources; SM = Use of secondary material; RSF = Use of renewable secondary fuels;NRSF = Use of non-renewable secondary fuels; FW = Use of net fresh waterRESULTS OF THE LCA – WASTE CATEGORIES AND OUTPUT FLOWS according to EN 15804+A2:1 m2 VELUX polyurethane roof windowParameterUnitA1A2A3C1C2C3C4DEnvironmental Product Declaration - VELUX Group - VELUX polyurethane roof windows GPU, VIU, GIU (62 triple glazing configuration)Raw materialsupplyTransportManufacturingTransport from thegate to the siteAssemblyUseMaintenanceRepairReplacementRefurbishmentOperational energyuseOperational wateruseDe-constructiondemolitionTransportWaste processingDisposalReuse-Recovery-Recycling-potentialGWP-totalkg CO2 eq1.34E+026.05E+002.46E+011.34E-031.81E+002.54E+011.59E+00-4.3E+01GWP-fossilkg CO2 eq1.61E+025.94E+008.37E+001.33E-031.78E+001.57E+013.7E-01-4.29E+01GWP-biogenickg CO2 eq-2.66E+011.42E-021.62E+011.19E-054.25E-039.68E+001.22E+00-5.09E-02GWP-luluckg CO2 eq9.42E-029.97E-023.73E-022.02E-072.99E-021.14E-032.09E-03-1.31E-02ODPkg CFC11 eq1.21E-068.74E-131.25E-093.01E-142.62E-13-9.08E-099.86E-13-5.75E-11APmol H+ eq6.7E-018.08E-032.7E-022.57E-061.03E-021.07E-022.59E-03-1.49E-01EP-freshwaterkg P eq4.87E-032.53E-059.66E-055.51E-097.61E-06-2.06E-058.06E-06-2.46E-05EP-marinekg N eq1.48E-012.92E-031.21E-026.41E-075.04E-034.87E-036.9E-04-3.63E-02EP-terrestrialmol N eq1.66E+003.48E-021.24E-016.71E-065.6E-025.77E-027.47E-03-4.02E-01POCPkg NMVOCeq4.14E-018.04E-033.71E-021.69E-069.72E-031.26E-022.29E-03-9.74E-02ADPEkg Sb eq1.07E-035.17E-076.3E-062.49E-101.55E-07-1.42E-072.34E-08-1.48E-05ADPFMJ2.28E+037.82E+011.32E+022.79E-022.35E+017.32E+004.96E+00-5.17E+02WDPm3 world eqdeprived1.83E+019.19E-025.27E-013.67E-042.76E-022.76E+004.26E-02-6.11E+00PEREMJ4.3E+026.73E+003.23E+022.01E-022.02E+001.08E+028.34E-01-1.17E+02PERMMJ2.64E+0204.19E+0100-1.06E+0200PERTMJ6.95E+026.73E+003.65E+022.01E-022.02E+001.78E+008.34E-01-1.17E+02PENREMJ2.07E+037.82E+011.17E+022.79E-022.35E+012.13E+024.96E+00-5.17E+02PENRMMJ2.08E+0201.48E+0100-2.06E+0200PENRTMJ2.28E+037.82E+011.32E+022.79E-022.35E+017.32E+004.96E+00-5.17E+02SMkg4.71E+000000000RSFMJ00000000NRSFMJ00000000FWm37.57E-017.5E-033.54E-021.54E-052.25E-036.5E-021.29E-03-2.32E-01HWDkg2.32E-032.99E-092.35E-064.03E-118.99E-103.8E-091.21E-09-9.46E-08NHWDkg1.61E+011.28E-022.93E-012.3E-053.83E-039.89E-012.3E+01-6.37E+00RWDkg4.51E-021.42E-041.76E-034.45E-064.28E-053.21E-045.33E-05-1.86E-02CRUkg00000000MFRkg1.74E-0201.71E+01002.03E+0100MERkg00000000EEEMJ3.45E-0200004.48E+0100EETMJ5.03E-0200008.11E+01005
HWD = Hazardous waste disposed; NHWD = Non-hazardous waste disposed; RWD = Radioactive waste disposed; CRU = Components for re-use;MFR = Materials for recycling; MER = Materials for energy recovery; EEE = Exported electrical energy; EET = Exported thermal energyRESULTS OF THE LCA – additional impact categories according to EN 15804+A2-optional:1 m2 VELUX polyurethane roof windowParameterUnitA1A2A3C1C2C3C4DPM = Potential incidence of disease due to PM emissions; IR = Potential Human exposure efficiency relative to U235; ETP-fw = Potential comparativeToxic Unit for ecosystems; HTP-c = Potential comparative Toxic Unit for humans (cancerogenic); HTP-nc = Potential comparative Toxic Unit for humans(not cancerogenic); SQP = Potential soil quality indexDisclaimer 1 – for the indicator 'Potential Human exposure efficiency relative to U235'. This impact category deals mainly with theeventual impact of low-dose ionizing radiation on human health of the nuclear fuel cycle. It does not consider effects due to possiblenuclear accidents, occupational exposure or radioactive waste disposal in underground facilities. Potential ionizing radiation from thesoil, radon and from some construction materials is also not measured by this indicator.Disclaimer 2 – for the indicators 'abiotic depletion potential for non-fossil resources', 'abiotic depletion potential for fossil resources','water (user) deprivation potential, deprivation-weighted water consumption', 'potential comparative toxic unit for ecosystems', 'potentialcomparative toxic unit for humans – cancerogenic', 'Potential comparative toxic unit for humans - not cancerogenic', 'potential soilquality index'. The results of this environmental impact indicator shall be used with care as the uncertainties on these results are highas there is limited experience with the indicator.The results show that module A1 has the highest impact across all environmental impact indicators (except GWP – biogenic). ModuleA3 has the second highest impact in most impact indicators due to the energy consumption. All main components in the windowscontribute significantly to some of the environmental indicators. The glass in the glazing units has the highest contribution in mostimpact categories among all material types. The galvanised steel components contribute significantly to the results due to their highweight contribution to the product. The aluminium components are also significant for the WDP indicator, although the weight of thealuminium components is notably lower in comparison with the galvanised steel components. This is most likely due to the relativelyhigh energy and water consumption in the production of aluminium.ReferencesIBU PCR Part AIBU PCR Part A: Institut Bauen und Umwelt e.V., ProductCategory Rules for Building-Related Products and Services.Calculation Rules for the Life Cycle Assessment andRequirements on the Project Report according to EN15804+A2:2019, version 1.4.IBU PCR Part BIBU PCR Part B: Institut Bauen und Umwelt e.V., Requirementson the EPD for Windows and doors, version 10: 2024.IBU 2021IBU 2021 Institut Bauen und Umwelt e.V.: General Instructionsfor the EPD programme of Institut Bauen und Umwelt e.V.Version 2.0, Berlin: Institut Bauen und Umwelt e.V.,2021.www.ibu-epd.com.EN 12207EN 12207:2016 Windows and doors - Air permeability -ClassificationEN 12208EN 12208:2000 Windows and doors. Watertightness.Classification is classified in these ICS categories: 91.060.50Doors and windowsEN 13501-1EN 13501-1 EN13501-1, 2018: Fire classification ofconstruction products and building elements - Part 1:Classification using data from reaction to fire tests.ISO 14025DIN EN ISO 14025:2011-10, Environmental labels anddeclarations - Type III environmental declarations - Principlesand procedures.EN 14351-1EN 14351-1:2006+A2:2016, Windows and doors - Productstandard, performance characteristics - Part 1: Windows andexternal pedestrian doorsets.EN 15804EN 15804:2012+A2:2019+AC:2021, Sustainability ofconstruction works — Environmental Product Declarations —Core rules for the product category of construction products.EN 17213EN 17213:2020, Windows and doors – Environmental ProductDeclarations – Product category rules for windows andpedestrian doorsets.Regulation (EU) No 305/2011Regulation (EU) No 305/2011 of the European Parliament andof the Council of 9 March 2011 laying down harmonisedconditions for the marketing of construction products andrepealing Council Directive 89/106/EEC Candidate listECHA Candidate list of substances of very high concern, status23.08.2023ISO 10077-1ISO 10077-1:2017, Thermal performance of windows, doorsand shutters - Calculation of thermal transmittance - Part 1:General.Environmental Product Declaration - VELUX Group - VELUX polyurethane roof windows GPU, VIU, GIU (62 triple glazing configuration)PMDiseaseincidence1.09E-058.15E-082.89E-072.15E-115.69E-084.29E-083.19E-08-1.99E-06IRkBq U235 eq7.32E+002.07E-022.88E-017.34E-046.2E-033.86E-026.37E-03-2.78E+00ETP-fwCTUe2.45E+035.8E+014.42E+018.08E-031.74E+013.48E+003.11E+00-1.78E+02HTP-cCTUh1.98E-061.17E-091.17E-084.54E-133.52E-102.15E-107.24E-11-4.2E-08HTP-ncCTUh1.16E-065.26E-081.05E-076.95E-121.58E-081.01E-083.41E-09-1.64E-07SQPSQP5.04E+033.85E+012.68E+021.17E-021.15E+019.23E-011.28E+00-3.31E+016
ISO 10077-2ISO 10077-2:2017, Thermal performance of windows, doorsand shutters - Calculation of thermal transmittance - Part 2:Numerical method for frames.LCA for Experts (GaBi) LCA software, Managed LCAContent and Ecoinvent databasesThe LCA modelling software is LCA for Experts withcorresponding databases from Sphera Solutions GmbH(Managed LCA Content) and Ecoinvent. Documentationhyperlink www.gabisoftware. com/support/gabi.Environmental Product Declaration - VELUX Group - VELUX polyurethane roof windows GPU, VIU, GIU (62 triple glazing configuration)7
PublisherInstitut Bauen und Umwelt e.V. Hegelplatz 1 10117 Berlin Germany+49 (0)30 3087748- 0 info@ibu-epd.com www.ibu-epd.comProgramme holderInstitut Bauen und Umwelt e.V. Hegelplatz 1 10117 Berlin Germany+49 (0)30 3087748- 0 info@ibu-epd.com www.ibu-epd.comAuthor of the Life Cycle AssessmentFORCE TechnologyPark Alle 3452605 BrøndbyDenmark+4543250856chme@forcetechnology.comwww.forcetechnology.comOwner of the DeclarationVELUX GroupÅdalsvej 992970 HørsholmDenmark+4545164871birthe.kjeldsen@velux.comwww.velux.comEnvironmental Product Declaration - VELUX Group - VELUX polyurethane roof windows GPU, VIU, GIU (62 triple glazing configuration)8
