
SOPREMA Inc.Self-Adhesive SOPRASEAL STICK 130 & 130-S and SOPRASEAL 60 & 60 FF Thermofusible Air/Vapour Barrier MembranesENVIRONMENTAL PRODUCTDECLARATIONISO 14025:2006 and ISO 21930:2017SOPREMA is pleased to present this Environmental Product Declara� on (EPD) for the SOPRASEAL STICK 130 & 130-S and SOPRASEAL 60 & 60 FF. This EPD was developed in compliance with ISO 14025 and ISO 21930 and has been verifi ed by Lindita Bushi, Ph.D., Athena Sustainable Materials Ins� tute. The LCA and the EPD were prepared by Ver� ma Inc. The EPD includes cradle-to-gate life cycle assessment (LCA) results. For more informa� on about SOPREMA, visit www.soprema.ca.For any explanatory material regarding this EPD, please contact the program operator.

Page 2SOPREMA Inc. | GENERAL INFORMATION1. GENERAL INFORMATIONEPD GENERAL INFORMATIONProgram OperatorASTM Interna� onal100 Barr Harbor Drive, West Conshohocken, PA 19428www.astm.orgDeclared ProductsSOPRASEAL STICK 130SOPRASEAL STICK 130-SSOPRASEAL STICK 60SOPRASEAL STICK 60 FFEPD Registra� on Number EPD Date of Issue EPD Period of Validity EPD Recipient Organiza� onSOPREMA Inc.1688, Jean-Berchmans-MichaudDrummondville (Quebec) J2C 8E9 Canadawww.soprema.caPCR GENERAL INFORMATIONReference PCRWater-Resis� ve and Air BarriersASTM Interna� onalSeptember 2017 to September 2023 (validity period)The PCR review was conducted by:Thomas P. Gloria (chair)Industrial Ecology Consultantst.gloria@industrial-ecology.comGraham Finch RDH Builiding Science, Inc.Paul H. Shipp USG Corpora� onThis LCA and EPD were prepared by:Chantal Lavigne, M.A ScVer� ma Inc.www.ver� ma.caThis EPD and LCA were independently verifi ed in accordance with ISO 14025:2006, ISO 14040:2006, ISO 14044:2006 and ISO 21930:2017, as well as the ASTM Interna� onal PCR “Water-Resis� ve and Air Barriers.” Internal X External_____________________________ Lindita Bushi, Ph.D.Athena Sustainable Materials Ins� tute X X X EPD Type/Scope and Declared UnitProduct specifi c cradle-to-gate EPD with declared unit of 1 m2 of membraneYear of Reported Manufacturer Primary Data2021Geographical ScopeNorth AmericaLCA So� wareOpenLCA v.1.11.0LCI DatabasesEcoinvent 3.9.1 andUS LCILCIA MethodologyTRACI 2.1, CED LHV v1.0 and HHV v.1.01EPD 511July 20, 2023July 19, 2028

Environmental Product Declaration (EPD) # 511 SOPREMA | GENERAL INFORMATION Page 3 LIMITATIONS Environmental declarations from different programs (ISO 14025) may not be comparable.[1] Furthermore, “comparison of construction products using an EPD shall be carried out in the context of the construction works. Consequently, comparisons of the environmental performance of construction products using the EPD shall consider all the relevant information modules over the full life cycle of the products within the construction works. Such a comparison requires scenarios in the construction works context. The provision of ISO 14025:2066, 6.7.2 on comparability shall apply.”[2] In sum, “EPDs based on a declared unit shall not be used for comparisons.”[3] The EPDs prepared from this report are not comparable as they are cradle-to-gate EPDs. [4] [Photo courtesy of SOPREMA]

Environmental Product Declaration (EPD) # 511 SOPREMA | PRODUCT SYSTEM DESCRIPTION Page 4 2. PRODUCT SYSTEM DESCRIPTION SOPREMA is an international manufacturer specializing in the production of innovative products for waterproofing, insulation, soundproofing and vegetated solutions for the roofing, building envelope and civil engineering sectors. SOPREMA manufactures several types of water barriers and air barriers. 2.1. PRODUCT DESCRIPTION SOPRASEAL STICK 130 & 130-S membranes [Photo courtesy of SOPREMA]. SOPRASEAL STICK 130 and SOPRASEAL STICK 130-S1 are self-adhesive air/vapour barrier membranes composed of SBS modified bitumen and a strong glass mat reinforcement used on walls. They can also be used as a through-wall flashing membrane and transition membrane. The top surface is either sanded or covered with a thermofusible plastic film. A silicone release film covers the self-adhesive underface. SOPRASEAL 60 and SOPRASEAL 60 FF1 are thermofusible air/vapour barrier membranes composed of SBS modified bitumen and a glass mat reinforcement used on walls. The top surface of the membrane is either sanded or covered with a thermofusible plastic film. SOPRASEAL 60 & 60 FF membranes [Photo courtesy of SOPREMA]. 1 SOPRASEAL STICK 130, SOPRASEAL STICK 130 S, SOPRASEAL 60 and SOPRASEAL 60 FF are classified under the Construction Specification Institute (CSI) MasterFormat code 07 27 13 Modified Bituminous Sheet Air Barriers.

Environmental Product Declaration (EPD) # 511 SOPREMA | PRODUCT SYSTEM DESCRIPTION Page 5 2.2. TECHNICAL DATA Properties Standards SOPRASEAL STICK 130 & 130-SSOPRASEAL 60 & 60 FF Breaking strength, MD/XD CAN/CGSB-37.56-M, 9th df19.5 / 12.7 kN/m 10 / 7.5 kN/m Ultimate elongation, MD/XD CAN/CGSB-37.56-M, 9th df10 / 8% 4 / 4% Water vapour permeance ASTM E96 (Procedure B) < 2.5 ng/Pa•s•m2 (< 0.04 perm) < 2.5 ng/Pa•s•m2 (< 0.04 perm) Air permeability, 75 Pa ASTM E283 (75 Pa) No Measurable Air LkNo Measurable Air LkAir permeability, 75 Pa ASTM E2178 <0.001 L/s•m2 <0.001 L/s•m2 Air permeance of membrane CAN/ULC S741 < 0.001 L/s•m² < 0.001 L/s•m² (All values are nominal) 2.3. PROPERTIES OF DECLARED PRODUCT AS DELIVERED Specifications SOPRASEAL STICK 130 SOPRASEAL STICK 130-S Thickness 2.5 mm (79 mil) Dimensions 1 m x 10 m (3.3 ft x 33 ft) Roll weight 30 kg (66 lb) 29 kg (64 lb) Reinforcement type Glass mat Top face Thermofusible plastic film Sand Underface Silicone release film More details are available at https://www.soprema.ca/en/products-systems/sopraseal-stick-130 https://www.soprema.ca/en/products-systems/sopraseal-stick-130-s (All values are nominal) Specifications SOPRASEAL 60 SOPRASEAL 60 FF Thickness 2.7 mm (79 mil) Dimensions 1 m x 10 m (3.3 ft x 33 ft) Roll weight 32 kg (71 lb) 31 kg (68 lb) Reinforcement type Glass mat Top face Sand Thermofusible plastic film Underface Thermofusible plastic film More details are available at https://www.soprema.ca/en/products-systems/sopraseal-60 (All values are nominal)

Environmental Product Declaration (EPD) # 511 SOPREMA | PRODUCT SYSTEM DESCRIPTION Page 6 2.4. MATERIAL COMPOSITION Component/Material SOPRASEAL STICK 130 & 130-S (production average) SOPRASEAL 60 & 60 FF (production average) SBS-modified bitumen mixture 89.1% 96.1% Glass fibre reinforcing mat 4.4% 2.0% Sand 5.4% 1.4% Silicone-coated release film 1.0% 0.0% Thermofusible plastic film 0.1% 0.3% Coloured sand 0.1% 0.2% TOTAL 100.0% 100.0% 2.5. MANUFACTURING Manufacturing SBS-modified bitumen air barrier sheet materials, as shown in the figure below, involves impregnating and coating a fibreglass mat with SBS-modified asphalt and/or oxidized asphalt. The SBS-modified asphalt is produced by mixing the appropriate proportions of polymer (SBS), asphalt (also called bitumen), and limestone (fillers). Appropriate surfacing materials are applied on both surfaces of the sheets, such as sand and/or polymeric burn-off film, and a silicone-coated release film on the underface of self-adhesive products. The product is cooled, wound into rolls, and packaged for shipment. SOPRASEAL STICK 130 & 130-S and SOPRASEAL 60 & 60 FF manufacturing process.

Environmental Product Declaration (EPD) # 511 SOPREMA | PRODUCT SYSTEM DESCRIPTION Page 7 2.6. PACKAGING Products are rolled on a cardboard tube on which a cardboard lip has been glued to add protection to the end of the roll. Tape, under which a polypropylene ribbon is placed in part, is applied on the rolls to keep them from unrolling. Thirty rolls are stacked on a wooden pallet which is protected by a labelled pallet bag. SOPRASEAL STICK 130 & 130-S and SOPRASEAL 60 & 60 FF Packaging Materials per DU Packaging Material SOPRASEAL STICK 130 & 130-S SOPRASEAL 60 & 60 FF Pallet Wood (kg/m2) 8.49E-02 7.19E-02 Cardboard tube, tube lip Cardboard (kg/m2) 2.15E-02 2.44E-02 Pallet bag LDPE (kg/m2) 3.60E-03 4.37E-03 Adhesive tape PVC (kg/m2) 8.32E-04 7.47E-04 Pallet labels Paper (kg/m2) 1.04E-05 1.18E-05 Ribbon PP (kg/m2) 8.49E-02 2.35E-02 Glue PVA (kg/m2) 2.01E-04 2.39E-04 2.7. PRODUCT INSTALLATION SOPRASEAL STICK 130 & 130-S are self-adhesive membranes. To apply, peel off the top portion of the silicone release film/paper and adhere the membrane to the substrate, making sure that the membrane is well aligned. Gradually peel off the remaining silicone release film, making sure the membrane is kept tight and adheres completely to avoid air pockets and wrinkles. Once the membrane is installed, use a hard roller to apply pressure over the entire surface to ensure uniform adhesion to the substrate. Refer to the table below for details on gross/net coverage per roll and application temperatures. SOPRASEAL 60 & 60 FF are heat-welded membranes. The membranes are applied using a torch and should never be bonded using hot asphalt. During installation, the membrane can be applied vertically starting at the bottom of the wall or can be applied horizontally. The flame should only be directed at the top surface of the roll in order to heat it just enough to soften the bitumen to obtain a small bead of melted bitumen in front of the membrane as it is unrolled onto the panel. Refer to the table below for details on gross/net coverage per roll and application temperatures. Specifications Gross / Net coverage per roll Application temperature SOPRASEAL STICK 130 & 130-S 10 / 9.5 m2 (107 / 102 ft2) -10 to 40°C (14 to 104°F) SOPRASEAL 60 & 60 FF 9.1 / 8.6 m2 (97 / 86 ft2) > -35°C (-31°F) 2.8. REFERENCE SERVICE LIFE AND CONDITION OF USE For this EPD, the system boundaries encompass a cradle-to-gate scope. Environmental impacts of products in the use phase are excluded from this declaration, per ASTM PCR Water-Resistive and Air Barriers.[3] 2.9. DISPOSAL At their end-of-life, the SOPREMA membranes are sent to landfill.

Environmental Product Declaration (EPD) # 511 SOPREMA | LCA CALCULATION RULES Page 8 3. LCA CALCULATION RULES 3.1. DECLARED UNIT The selected declared unit (DU) for this study is 1 m2 of membrane. SOPRASEAL STICK 130 & 103-S and SOPRASEAL 60 & 60 FF Declared Unit and Reference Flows Description SOPRASEAL STICK 130 & 130-S SOPRASEAL 60 & 60 FF Declared unit 1 m2 1 m2 Mass (kg/m2) 2.962 3.628 Product density (kg/m3) 1184.9 1343.9 Thickness (mm) 2.5 2.7 3.2. PRODUCTION AVERAGE In this EPD, a weighted average is used for the • SOPRASEAL STICK 130 and SOPRASEAL STICK 130-S, both produced at a facility located in British Columbia (Canada). • SOPRASEAL 60, produced at a facility located in British Columbia (Canada), and SOPRASEAL 60 FF produced at two facilities, one located in British Columbia (Canada) and the second located in Quebec (Canada). 3.3. SYSTEM BOUNDARIES According to ASTM's PCR,[3] the LCA modelling system boundaries can be cradle-to-gate, i.e., only cover the production life cycle stage as illustrated in Table 1. Within this life cycle stage, three (3) modules are considered, namely A-1) Extraction and upstream production, A-2) Transport to factory and A-3) Manufacturing. Construction (A-4; A-5), use (B-1 to B-7) and end-of-life (C-1 to C-4) stages are not included in this EPD. Figure 1 present the process flow diagram for SOPREMA’s products. Neither green power nor CO2 credits are used within the scope of this project. Table 1: Description of the system boundary life cycle stages and related information modules PRODUCTION STAGE CONSTRUC-TION PROCESS STAGE USE STAGE END-OF-LIFE STAGE A1 A2 A3 A4 A5 B1 B2 B3 B4 B5 B6 B7 C1 C2 C3 C4 Extraction and Upstream Production Transport to Factory Manufacturing Transport to site Installation Use Maintenance Repair Replacement Refurbishment Operational Energy Use Operational Water Use Deconstruction / Demolition Transport to Waste Processing or Disposal Waste Processing Disposal of Waste X X X MND MND MND MND MND MND MND MND MND MND MND MND MND Key: X = included; MND = module not declared (excluded)

Environmental Product Declaration (EPD) # 511 SOPREMA | LCA CALCULATION RULES Page 9 Figure 1: System Boundaries of Cradle-to-Gate LCA of SOPREMA’s SOPRASEAL STICK 130 & 130-S and SOPRASEAL 60 & 60 FF membranes. Extraction and upstream production: This module includes the extraction and transformation of raw materials needed to produce the SOPRASEAL STICK 130 & 130-S and SOPRASEAL 60 & 60 FF air barrier membranes. Transport to factory: This module includes the transportation of raw materials to the manufacturing facilities located in the provinces of British Columbia and Quebec (Canada). Manufacturing: This stage includes electricity, natural gas and propane consumption as well as production waste, which is sent to the local landfill. The manufacturing process does not require water, nor does it emit emissions directly to air, water or soil. Packaging materials to make products ready for shipment, as well as their transport to the manufacturing facility is also covered by this stage.

Environmental Product Declaration (EPD) # 511 SOPREMA | LCA CALCULATION RULES Page 10 3.4. CUT-OFF CRITERIA According to ISO 21930:2017, cut-off rules shall not be applied to hide data. All data shall be included. In the case of insufficient data, the cut-off criteria shall be 1% of energy or 1% of total mass input and 1% of environmental impacts of the unit process. The total cut-off input flows per modules shall be a maximum of 5% energy, mass and environmental impacts. No known flows are deliberately excluded from this EPD. For this EPD, no data on the construction, maintenance or dismantling of the capital assets, daily transport of employees, office work, business trips or other employee activities were included in the model. The model only takes into account the processes associated with infrastructure that are already included in the ecoinvent unit processes. 3.5. ALLOCATION Allocation, if required, shall follow the requirements and guidance of ISO 14044:2006, Section 4.3.4.[3,4] Energy data was provided for the entire manufacturing plants; thus, mass allocation was used to assign the share of energy consumed in the factory to the product under study. Waste processing of the material flows undergoing recycling processes are included up to the system boundary of the end-of-waste state.[2] In other words, a cut-off approach was used as further processing of the recycled material is part of raw material preparation of another product system (open-loop recycling). [Photo courtesy of SOPREMA]

Environmental Product Declaration (EPD) # 511 SOPREMA | LCA CALCULATION RULES Page 11 3.6. DATA SOURCES AND QUALITY REQUIREMENTS Data Quality Parameter Data Quality Discussion Source of manufacturing data Manufacturing data was collected from specific manufacturing facilities, which represents 100% of product production. This data included total annual mass and area of products under study: raw materials entering the production of the products under study, losses of materials, transport distance of materials, waste treatment, and product packaging. The data also included electricity consumption for the entire manufacturing facility as well as the total annual production of all products produced. Source of secondary data Background data were taken from the ecoinvent 3.9.1 “cut-off” database.[5] Datasets were selected based on their representativeness of the products’ composing materials. When appropriate, the dataset’s grid mix was changed for the grid mix of the province or country where production takes places. Otherwise, ecoinvent data representative of the global market or “rest-of-the-world” were selected as proxies. Geographical representativeness Electricity consumption is based on the electricity mix provided by the electricity supplier. Geographical correlation of the material composing the product and the selected datasets are largely representative of the same area. When this was not possible, datasets representing a larger geographical area were taken. Temporal representativeness Primary data represents the 2021 production year. Life cycle inventory datasets from ecoinvent are not always published within the last 10 years; nevertheless, ecoinvent remains a reference LCI database. Technological representativeness Primary data, obtained from the manufacturer, is representative of the current technologies and materials used by this company. Completeness All relevant process steps were considered and modelled to satisfy the goal and scope. No known flows were cut off.

Environmental Product Declaration (EPD) # 511 SOPREMA | LCA RESULTS Page 12 4. LIFE CYCLE ASSESSMENT RESULTS 4.1. RESULTS TABLES It should be noted that Life Cycle Impact Assessment (LCIA) results are relative expressions and do not predict impacts on category endpoints, the exceeding of thresholds, safety margins or risks. Environmental Indicator Unit TRACI 2.1 GWP100-AR5(1) Global warming potential kg CO2 eq. GWP100-AR4(2) Global warming potential kg CO2 eq. AP Acidification potential kg SO2 eq. EP Eutrophication potential kg N eq ODP Ozone layer depletion potential kg CFC-11 eq. SFP Smog formation potential kg O3 eq RDP Resource depletion potential – fossil fuels MJ Surplus Resource Use PENR-fossil Primary energy non-renewable, fossil MJ, HHV PENR-nuclear Primary energy non-renewable, nuclear MJ, HHV PER-biomass Primary energy renewable, biomass MJ, HHV PER-swhg Primary energy renewable, solar, wind, hydroelectric and geothermal energy MJ, HHV Material Resources Consumption and Waste NRMR(3) Non-renewable material resources kg RMR(4) Renewable material resources kg NFW(5) Net fresh water L HWD(6) Hazardous waste disposed kg NHWD(7) Non-hazardous waste disposed kg Table Notes – TRACI 2.1 (1) GWP 100, excludes biogenic CO2 removals and emissions associated with biobased products and packaging; 100-year time horizon GWP factors are provided by the IPCC 2013 Fifth Assessment Report (AR5). (2): GWP 100, excludes biogenic CO2 removals and emissions associated with biobased products and packaging; 100-year time horizon GWP factors are provided by the IPCC 2007 Fourth Assessment Report (AR4). Table Notes – Material Resource Consumption and Waste (3): Calculated based on the product’s material. (4): The product does not contain renewable material in its composition. (5): Represents the use of net fresh water calculated from life cycle inventory results, i.e., water consumption using ReCiPe Midpoint (E) 2016. (6): Calculated from life cycle inventory results, based on datasets classified under " treatment and disposal of hazardous waste." The manufacturer does not generate hazardous waste during the manufacturing process. (7): Calculated from life cycle inventory results, based on waste that is neither "hazardous" nor "radioactive."

Environmental Product Declaration (EPD) # 511 SOPREMA | LCA RESULTS Page 13 Additional Environmental Indicators Unit Resource Use RPRE(1) Renewable primary resources used as energy carrier (fuel) MJ, LHV RPRM(2) Renewable primary resources with energy content used as material MJ, LHV RPRT Renewable primary resources total MJ, LHV NRPRE(3) Non-renewable primary resources used as energy carrier (fuel) MJ, LHV NRPRM(4) Non-renewable primary resources with energy content used as material MJ, LHV NRPRT Non-renewable primary resources total MJ, LHV SM Secondary materials kg RSF Renewable secondary fuels MJ, LHV NRSF Non-renewable secondary fuels MJ, LHV FW(5) Use of net freshwater resources m³ Output Flows and Waste Categories HWD(6) Hazardous waste disposed kg NHWD(7) Non-hazardous waste disposed kg HLRW(8) High-level radioactive waste, conditioned, to final repository m3 ILLRW(9) Intermediate- and low-level radioactive waste, conditioned to final repository m3 CRU Components for re-use kg MFR Materials for recycling kg MER Materials for energy recovery kg EE Exported energy MJ, LHV Table Notes – Resource Use (1): RPRE = RPRT - RPRM, where RPRT is equal to the value for renewable energy obtained using the CED LHV methodology. (2): Calculated as per ACLCA ISO 21930 Guidance, 6.2 Renewable primary resources with energy content used as a material, RPRM. (3): NRPRE = NRPRT - NRPRM, where NRPRT is equal to the value for non-renewable energy obtained using the CED LHV methodology. (4): Calculated as per ACLCA ISO 21930 Guidance, 6.4 Non-renewable primary resources with energy content used as a material, NRPRM. (5): Represents the use of net freshwater calculated from life cycle inventory results, i.e., water consumption using ReCiPe Midppoint (E) 2016. Table Notes – Output Flows and Waste Categories (6): Calculated from life cycle inventory results, based on datasets classified under " treatment and disposal of hazardous waste." The manufacturer does not generate hazardous waste during the manufacturing process. (7): Calculated from life cycle inventory results, based on waste that is neither "hazardous" nor "radioactive." (8): Calculated from life cycle inventory results, based on ecoinvent waste flow "high-level radioactive waste for final repository." (9): Calculated from life cycle inventory results, based on ecoinvent waste flow "low-level radioactive waste for final repository."

Environmental Product Declaration (EPD) # 511 SOPREMA | LCA RESULTS Page 14 SOPRASEAL STICK 130 & 130-S (Production average) Environmental Indicator Unit A1 A2 A3 A1 - A3 (per m2) (per m2) (per m2) (per m2) TRACI 2.1 GWP100-AR5(1) kg CO2 eq. 2.51E+00 3.38E-01 1.72E-01 3.02E+00 GWP100-AR4(2) kg CO2 eq. 2.49E+00 3.37E-01 1.69E-01 3.00E+00 AP kg SO2 eq. 8.49E-03 3.52E-03 4.64E-04 1.25E-02 EP kg N eq 1.53E-03 2.55E-04 2.61E-04 2.05E-03 ODP kg CFC-11 eq. 9.47E-06 1.10E-09 5.44E-09 9.48E-06 SFP kg O3 eq 1.47E-01 1.06E-01 1.04E-02 2.64E-01 RDP MJ Surplus 1.28E+01 5.99E-01 5.50E-02 1.34E+01 Resource Use PENR-fossil MJ, HHV 1.36E+02 4.81E+00 2.67E+00 1.44E+02 PENR-nuclear MJ, HHV 4.20E-01 4.24E-04 9.96E-02 5.20E-01 PER-biomass MJ, HHV 1.34E-01 9.19E-04 3.85E-01 5.20E-01 PER-swhg MJ, HHV 8.65E-01 6.97E-03 8.64E-01 1.74E+00 Material Resource Consumption and Waste NRMR(3) kg 2.96E+00 0.00E+00 0.00E+00 2.96E+00 RMR(4) kg 0.00E+00 0.00E+00 0.00E+00 0.00E+00 NFW(5) L 9.94E+00 5.08E-02 6.05E+00 1.60E+01 HWD(6) kg 5.68E-01 2.68E-03 1.22E-01 6.92E-01 NHWD(7) kg 1.83E-01 4.15E-03 3.66E-02 2.24E-01 Table Notes – TRACI 2.1 (1) GWP 100, excludes biogenic CO2 removals and emissions associated with biobased products and packaging; 100-year time horizon GWP factors are provided by the IPCC 2013 Fifth Assessment Report (AR5). (2): GWP 100, excludes biogenic CO2 removals and emissions associated with biobased products and packaging; 100-year time horizon GWP factors are provided by the IPCC 2007 Fourth Assessment Report (AR4). Table Notes – Material Resource Consumption and Waste (3): Calculated based on the product’s material. (4): The product does not contain renewable material in its composition. (5): Represents the use of net fresh water calculated from life cycle inventory results, i.e., water consumption using ReCiPe Midpoint (E) 2016. (6): Calculated from life cycle inventory results, based on datasets classified under "treatment and disposal of hazardous waste." The manufacturer does not generate hazardous waste during the manufacturing process. (7): Calculated from life cycle inventory results, based on waste that is neither "hazardous" nor "radioactive."

Environmental Product Declaration (EPD) # 511 SOPREMA | LCA RESULTS Page 15 SOPRASEAL STICK 130 & 130-S (Production average) Environmental Indicator Unit A1 A2 A3 A1 - A3 (per m2) (per m2) (per m2) (per m2) Resource Use RPRE(1) MJ, LHV 1.00E+00 7.89E-03 1.25E+00 2.26E+00 RPRM(2) MJ, LHV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 RPRT MJ, LHV 1.00E+00 7.89E-03 1.25E+00 2.26E+00 NRPRE(3) MJ, LHV 4.59E+01 4.31E+00 7.48E-01 5.10E+01 NRPRM(4) MJ, LHV 8.01E+01 0.00E+00 0.00E+00 8.01E+01 NRPRT MJ, LHV 1.26E+02 4.31E+00 7.48E-01 1.31E+02 SM kg 0.00E+00 0.00E+00 0.00E+00 0.00E+00 RSF MJ, LHV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 NRSF MJ, LHV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 FW(5) m³ 9.94E-03 5.08E-05 6.05E-03 1.60E-02 Output Flows and Waste Categories HWD(6) kg 5.68E-01 2.68E-03 1.22E-01 6.92E-01 NHWD(7) kg 1.83E-01 4.15E-03 3.66E-02 2.24E-01 RWD kg 1.15E-07 1.13E-10 2.85E-08 1.44E-07 HLRW(8) m3 3.17E-10 3.11E-13 7.85E-11 3.95E-10 ILLRW(9) m3 2.04E-09 1.84E-12 4.20E-10 2.47E-09 CRU kg 0.00E+00 0.00E+00 0.00E+00 0.00E+00 MFR kg 3.80E-03 0.00E+00 0.00E+00 3.80E-03 MER kg 0.00E+00 0.00E+00 0.00E+00 0.00E+00 EE MJ, LHV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Table Notes – Resource Use (1): RPRE = RPRT - RPRM, where RPRT is equal to the value for renewable energy obtained using the CED LHV methodology. (2): Calculated as per ACLCA ISO 21930 Guidance, 6.2 Renewable primary resources with energy content used as a material, RPRM. (3): NRPRE = NRPRT - NRPRM, where NRPRT is equal to the value for non-renewable energy obtained using the CED LHV methodology. (4): Calculated as per ACLCA ISO 21930 Guidance, 6.4 Non-renewable primary resources with energy content used as a material, NRPRM. (5): Represents the use of net freshwater calculated from life cycle inventory results, i.e., water consumption using ReCiPe Midpoint (E) 2016. Table Notes – Output Flows and Waste Categories (6): Calculated from life cycle inventory results, based on datasets classified under "treatment and disposal of hazardous waste." The manufacturer does not generate hazardous waste during the manufacturing process. (7): Calculated from life cycle inventory results, based on waste that is neither "hazardous" nor "radioactive." (8): Calculated from life cycle inventory results, based on ecoinvent waste flow "high-level radioactive waste for final repository." (9): Calculated from life cycle inventory results, based on ecoinvent waste flow "low-level radioactive waste for final repository."

Environmental Product Declaration (EPD) # 511 SOPREMA | LCA RESULTS Page 16 SOPRASEAL 60 & 60 FF (Production average) Environmental Indicator Unit A1 A2 A3 A1 - A3 (per m2) (per m2) (per m2) (per m2) TRACI 2.1 GWP100-AR5(1) kg CO2 eq. 2.34E+00 2.96E-01 1.73E-01 2.81E+00 GWP100-AR4(2) kg CO2 eq. 2.33E+00 2.95E-01 1.70E-01 2.80E+00 AP kg SO2 eq. 7.09E-03 3.11E-03 4.31E-04 1.06E-02 EP kg N eq 9.33E-04 2.26E-04 2.18E-04 1.38E-03 ODP kg CFC-11 eq. 3.95E-09 1.01E-09 5.78E-09 1.07E-08 SFP kg O3 eq 1.35E-01 9.42E-02 9.39E-03 2.39E-01 RDP MJ Surplus 1.31E+01 5.48E-01 5.79E-02 1.37E+01 Resource Use PENR-fossil MJ, HHV 1.39E+02 4.40E+00 2.69E+00 1.46E+02 PENR-nuclear MJ, HHV 1.83E-01 3.89E-04 1.27E-01 3.11E-01 PER-biomass MJ, HHV 5.10E-02 8.42E-04 4.17E-01 4.69E-01 PER-swhg MJ, HHV 8.30E-01 7.23E-03 1.65E+00 2.49E+00 Material Resource Consumption and Waste NRMR(3) kg 3.63E+00 0.00E+00 0.00E+00 3.63E+00 RMR(4) kg 0.00E+00 0.00E+00 0.00E+00 0.00E+00 NFW(5) L 7.16E+00 4.66E-02 6.91E+00 1.41E+01 HWD(6) kg 2.99E-01 2.46E-03 8.66E-02 3.88E-01 NHWD(7) kg 5.64E-02 3.80E-03 9.23E-02 1.53E-01 Table Notes – TRACI 2.1 (1) GWP 100, excludes biogenic CO2 removals and emissions associated with biobased products and packaging; 100-year time horizon GWP factors are provided by the IPCC 2013 Fifth Assessment Report (AR5). (2): GWP 100, excludes biogenic CO2 removals and emissions associated with biobased products and packaging; 100-year time horizon GWP factors are provided by the IPCC 2007 Fourth Assessment Report (AR4). Table Notes – Material Resource Consumption and Waste (3): Calculated based on the product’s material. (4): The product does not contain renewable material in its composition. (5): Represents the use of net fresh water calculated from life cycle inventory results, i.e., water consumption using ReCiPe Midpoint (E) 2016. (6): Calculated from life cycle inventory results, based on datasets classified under "treatment and disposal of hazardous waste." The manufacturer does not generate hazardous waste during the manufacturing process. (7): Calculated from life cycle inventory results, based on waste that is neither “hazardous” nor “radioactive."

Environmental Product Declaration (EPD) # 511 SOPREMA | LCA RESULTS Page 17 SOPRASEAL 60 & 60 FF (Production average) Environmental Indicator Unit A1 A2 A3 A1 - A3 (per m2) (per m2) (per m2) (per m2) Resource use RPRE(1) MJ, LHV 8.30E-01 7.23E-03 1.65E+00 2.49E+00 RPRM(2) MJ, LHV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 RPRT MJ, LHV 8.30E-01 7.23E-03 1.65E+00 2.49E+00 NRPRE(3) MJ, LHV 5.06E+01 3.95E+00 7.63E-01 5.53E+01 NRPRM(4) MJ, LHV 7.99E+01 0.00E+00 0.00E+00 7.99E+01 NRPRT MJ, LHV 1.30E+02 3.95E+00 7.63E-01 1.35E+02 SM kg 0.00E+00 0.00E+00 0.00E+00 0.00E+00 RSF MJ, LHV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 NRSF MJ, LHV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 FW(5) m³ 7.16E-03 4.66E-05 6.91E-03 1.41E-02 Output flows and waste categories HWD(6) kg 2.99E-01 2.46E-03 8.66E-02 3.88E-01 NHWD(7) kg 5.64E-02 3.80E-03 9.23E-02 1.53E-01 RWD kg 5.06E-08 1.04E-10 8.60E-08 1.37E-07 HLRW(8) m3 1.39E-10 2.85E-13 2.37E-10 3.76E-10 ILLRW(9) m3 7.01E-10 1.68E-12 4.95E-10 1.20E-09 CRU kg 0.00E+00 0.00E+00 0.00E+00 0.00E+00 MFR kg 4.13E-03 0.00E+00 0.00E+00 4.13E-03 MER kg 0.00E+00 0.00E+00 0.00E+00 0.00E+00 EE MJ, LHV 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Table Notes – Resource use (1): RPRE = RPRT - RPRM, where RPRT is equal to the value for renewable energy obtained using the CED LHV methodology. (2): Calculated as per ACLCA ISO 21930 Guidance, 6.2 Renewable primary resources with energy content used as a material, RPRM. (3): NRPRE = NRPRT - NRPRM, where NRPRT is equal to the value for non-renewable energy obtained using the CED LHV methodology. (4): Calculated as per ACLCA ISO 21930 Guidance, 6.4 Non-renewable primary resources with energy content used as a material, NRPRM. (5): Represents the use of net fresh water calculated from life cycle inventory results, i.e., water consumption using ReCiPe Midpoint (E) 2016. Table Notes – Output flows and waste categories (6): Calculated from life cycle inventory results, based on datasets classified under "treatment and disposal of hazardous waste." The manufacturer does not generate hazardous waste during the manufacturing process. (7): Calculated from life cycle inventory results, based on waste that is neither "hazardous" nor "radioactive." (8): Calculated from life cycle inventory results, based on ecoinvent waste flow "high-level radioactive waste for final repository." (9): Calculated from life cycle inventory results, based on ecoinvent waste flow "low-level radioactive waste for final repository."

Environmental Product Declaration (EPD) # 511 SOPREMA | LCA RESULTS Page 18 4.2. CONTRIBUTION ANALYSIS The results for SOPRASEAL STICK 130 & 130-S and SOPRASEAL 60 & 60 FF, as shown in the figures below, are very similar, except for the ozone layer depletion category where extraction and upstream production (A1) is the main contributor for SOPRASEAL STICK 130 & 130-S, while manufacturing (A3) is the greatest contributor for SOPRASEAL 60 & 60 FF. Contribution analysis of information modules A1-A3 of the SOPRASEAL STICK 130 & 130-S product life cycle stage - TRACI & CED indicators. Contribution analysis of information modules A1-A3 of the SOPRASEAL 60 & 60 FF product life cycle stage - TRACI & CED indicators 0%10%20%30%40%50%60%70%80%90%100%kg SO2 eqkg N eqkg CO2 eq kg CFC-11eqkg O3 eqMJ, HHVMJ, HHVMJ, HHVMJ, HHVAPEPGWPODPSFPPENR-fossilPENR-nuclearPER-biomassPER-swhgSOPRASEAL STICK 130 & 130-SA1 - Extraction and upstream productionA2 - Transport to factoryA3 - Manufacturing0%10%20%30%40%50%60%70%80%90%100%kg SO2 eqkg N eqkg CO2 eq kg CFC-11eqkg O3 eqMJ, HHVMJ, HHVMJ, HHVMJ, HHVAPEPGWPODPSFPPENR-fossilPENR-nuclearPER-biomassPER-swhgSOPRASEAL 60 & 60 FFA1 - Extraction and upstream productionA2 - Transport to factoryA3 - Manufacturing

Environmental Product Declaration (EPD) # 511 SOPREMA | REFERENCES Page 19 5. ADDITIONAL ENVIRONMENTAL INFORMATION 5.1. REGULATED HAZARDOUS SUBSTANCES There are no ingredients present in the SOPRASEAL STICK 130 & 130-S and SOPRASEAL 60 & 60 FF, within the current knowledge and in the concentrations applicable, are classified as hazardous to health or the environment and hence require reporting in the product safety data sheet. 5.2. DANGEROUS SUBSTANCES SOPRESEAL STICK 130 & 130-S are not expected to release dangerous substances during normal use. SOPRASEAL 60 & 60 FF, which are torched-applied, produce thick black smoke. Irritating and/or toxic gases including hydrogen sulfide and sulphur dioxide, traces of metallic fumes may be generated by thermal decomposition of combustion. 5.3. FURTHER INFORMATION SOPREMA has also published a Health Product Declaration® for the SOPRASEAL 60 FF. More details are available on the HPDC public repository: https://www.hpd-collaborative.org/hpd-public-repository/. Additional product information can be found on SOPREMA’s website: (https://www.soprema.ca/en/products-systems/building-components/walls/air-and-vapour-barrier). 6. REFERENCES[6][7] [1] International Organization for Standardization (ISO), “ISO 14025 Environmental labels and declarations - Type III environmental declarations - Principles and procedures,” 2006. [2] International Organization for Standardization (ISO), “ISO 21930:2017(E) Sustainability in buildings and civil engineering works — Core rules for environmental product declarations of construction products and services,” 2017. [3] ASTM International, “Water-Resistive and Air Barriers PCR,” 2017 [Online]. Available: https://www.nsf.org/standards-development/product-category-rules. [4] International Organization for Standardization (ISO), “ISO 14044:2006/AMD1:2017/AMD 2:2020 Environmental management - Life cycle assessment - Requirements and guidelines,” 2006. [5] F. R. et al., “Overview and Methodology. ecoinvent report No. 1,” Dübendorf, 2007. [6] ASTM International, “ASTM Program Operator Rules. Version: 8.0, Revised 04/29/20,” 2020 [Online]. Available: www.astm.org. [7] Vertima, “Life Cycle Assessment of SOPREMA’s Air Barriers,” 2023.

1688, Jean-Berchmans-Michaud Drummondville (Quebec) J2C 8E9 Canada www.soprema.ca 310 Quadral Dr. Wadsworth, OH 44281 USA www.soprema.us