LCA results & interpretation Cascadia Universal Series™ Fixed & Operable Windows and Doors
Scope and summary
- Cradle to gate
- Cradle to gate with options
- Cradle to grave
Application
The Cascadia Universal Series™ Sliding Door offers a patented, high-performance fiberglass solution designed and manufactured in North America. The sliding door features an innovative, commercial-grade fiberglass frame that boasts up to 250% improved thermal performance compared to traditional aluminum doors. Sliding doors consist of an operable door frame around a transparent glazing unit, and fixed door frame around a transparent glazing unit. These are placed withing a fixed frame and equipped with hardware that allows the operable door to remain stationary in a closed position, or to slide parallel to the fixed door. The primary function of these fenestration systems is to create a façade between the building's interior and exterior, allow occupant egress, provide structural support, and limiting thermal transfer through the building envelope.
Declared unit
The declared unit is one 2,000mm × 2,000mm (79in × 79in) sliding door normalized to one square meter (1 m2) of fenestration assemblies (including frame and glass). Glazing beads and stops, sealants, gaskets, and other parts that retain or support the glazing are considered part of the framing assembly, not the glazing assembly. The declared product meets the relevant performance standards in ANSI/NFRC 100 per the identified sub-type.
Mass per declared unit:
| Fenestration sub-type | Whole unit, kg | Frame only, kg | Glazing only, kg |
| Sliding door | 33.0 |
14.6 |
18.4 |
Manufacturing data
Reporting period: May 2022 – April 2023
Location: British Columbia, Canada
What’s causing the greatest impacts
All life cycle stages
Activities during the acquisition and preprocessing of raw materials are responsible for the majority of the impacts in each impact category. The raw material supply stage dominates the results for all impact categories. The next highest contributor to global warming and fossil fuel depletion is the manufacturing stage due to fabrication and waste disposal activities, which makes up 10.8% of global warming and 16.9% of fossil fuel depletion impacts. The upstream transportation stage is the next highest contributor to the remaining impact categories.
Raw materials acquisition
Raw materials acquisition (A1) dominates the results for all impact categories. This module includes the raw materials acquired and preprocessed by the suppliers, including packaging. This stage makes up 80-90% of the total impacts for all impact categories. The glazing and frame are the two contributors calculated separately in the raw material acquisition stage. The fiberglass door frame generated 35.8% of total global warming results, whereas the glazing generated 64.2% of the total. The glazing unit contains two 6mm tempered glass panes manufactured by an upstream supplier and sourced in North America. The frame unit contains fiberglass lineals, insulation, hardware, and packaging. During the production of these fiberglass lineals, glass fibers and catalyzed polyester resin are combined in a pultrusion process. The fiberglass lineals make up most of the weight of the frame unit, and they dominate the environmental impacts over the other frame components.
Transportation
Transportation (A2) of raw materials accounts for a notable contribution to impacts at around 5-10% to many impact categories. This module includes raw material transportation from suppliers to the Cascadia manufacturing facility. The transportation stage accounts for slightly higher percentages compared to the manufacturing stage in the following impact categories: ozone depletion, smog, acidification, eutrophication, carcinogenic, non-carcinogenic, respiratory effects, and ecotoxicity. Most ingredients sourced in North America are transported by semi-truck, whereas materials sourced from overseas use a mix of road transportation by semi-truck and sea transportation by ship.
Manufacturing
Manufacturing (A3) is the second-highest contributor to many impact categories. This module includes fabrication and the disposal of manufacturing waste. The fabrication includes cutting the fiberglass, drilling, packaging, and cleaning. Fiberglass production waste, incoming raw material packaging waste, and other non-hazardous wastes are transported to a landfill, and recyclable packaging wastes are transported to a recycling facility or reused within the plant.
Sensitivity analysis
Sensitivity analyses were performed to check the robustness of the results where the highest potential environmental impacts were occurring. Since the bulk of impacts were attributed to raw materials acquisition, a sensitivity analysis was conducted to examine the sensitivity of the different available glazing configurations.
Global warming potential was evaluated for sensitivity since Cascadia is interested in the potential CO2-equivalent emissions of its products. The fixed window was evaluated as a worst case scenario, since it has the highest percentage of glazing and therefore provides the most conservative estimate of change. Choosing a triple-glazed product configuration rather than the double-glazed option resulted in a 32.9% increase in total life cycle impacts, highlighting the importance of this choice on total impacts.
How we're making it greener
Fiberglass is an ideal structural material for window and door frames, which is why Cascadia has used a proprietary, high glass-fiber-to-resin formula for more than a decade. Beyond its high strength and thermal efficiency, Cascadia's pultruded, thermoset fiberglass frames contain roughly 58% recycled content, low VOC's, and represent less embodied energy compared to vinyl or aluminum.
Not susceptible to decay or corrosion, fiberglass also expands and contracts with temperature change at roughly the same rate as the adjacent IGU. This extends the longevity of window seals and gaskets, reducing maintenance costs. Combined with a modeled lifespan of up to 80 years, fiberglass represents the future of high-performance windows and doors.
LCA results
| Life cycle stage | A1 Raw material Supply | A2 Upstream transport | A3 Manufacturing |
|
Information modules:
|
(X) A1 Raw material supply | (X) A2 Transport | (X) A3 Manufacturing |
 |
 |
 |
SM Single Score
| Impacts per declared unit | 9.44E+00 mPts | 5.42E-01 mPts | 4.61E-01 mPts |
| Materials or processes contributing >20% to total impacts in each life cycle stage | Upstream manufacturing of the fiberglass lineals and glass panes. | Transportation of raw materials to the Cascadia facility. | Product fabrication including cutting, drilling, packaging, and cleaning. |
TRACI v2.1 results per declared unit of Universal Series™ Sliding Door (total)
| Life cycle stage | A1 Raw material supply | A2 Transport | A3 Manufacturing |
Ecological damage
Human health damage
Additional environmental information
| Impact category | Unit | |||
| Fossil fuel depletion | MJ surplus Mega Joule, lower heating value Fossil fuel depletion is the surplus energy to extract minerals and fossil fuels. |
1.44E+02 | 1.76E+01 | 3.28E+01 |
| Ecotoxicity | CTUe Comparative Toxic Units of Ecotoxicity Ecotoxicity causes negative impacts to ecological receptors and, indirectly, to human receptors through the impacts to the ecosystem. |
1.13E+02 | 2.36E+01 | 3.15E-01 |
TRACI v2.1 results per declared unit of Universal Series™ Sliding Door (frame only)
| Life cycle stage | A1 Raw material supply | A2 Transport | A3 Manufacturing |
Ecological damage
Human health damage
Additional environmental information
| Impact category | Unit | |||
| Fossil fuel depletion | MJ surplus Mega Joule, lower heating value Fossil fuel depletion is the surplus energy to extract minerals and fossil fuels. |
4.46E+01 | 1.47E+01 | 1.45E+01 |
| Ecotoxicity | CTUe Comparative Toxic Units of Ecotoxicity Ecotoxicity causes negative impacts to ecological receptors and, indirectly, to human receptors through the impacts to the ecosystem. |
8.46E+01 | 1.96E+01 | 1.39E-01 |
TRACI v2.1 results per declared unit of Universal Series™ Sliding Door (glazing only)
| Life cycle stage | A1 Raw material supply | A2 Transport | A3 Manufacturing |
Ecological damage
Human health damage
Additional environmental information
| Impact category | Unit | |||
| Fossil fuel depletion | MJ surplus Mega Joule, lower heating value Fossil fuel depletion is the surplus energy to extract minerals and fossil fuels. |
9.96E+01 | 2.94E+00 | 1.83E+01 |
| Ecotoxicity | CTUe Comparative Toxic Units of Ecotoxicity Ecotoxicity causes negative impacts to ecological receptors and, indirectly, to human receptors through the impacts to the ecosystem. |
2.84E+01 | 3.97E+00 | 1.76E-01 |
References
LCA Background Report
Cascadia Universal Series™ Fixed & Operable Windows and Doors, and Universal Series™ Windows Wall LCA Background Report, Cascadia 2024; SimaPro Analyst 9.6; ecoinvent v3.10 and US-EI 2.2 databases; TRACI 2.1.
ISO 14025, “Sustainability in buildings and civil engineering works -- Core rules for environmental product declarations of construction products and services”
ISO 21930:2017, "Sustainability in Building Construction — Environmental Declaration of Building Products" serves as the core PCR.
NSF PCR for Fenestration Assemblies, version 2
December, 2023. PCR review conducted by Dr. Thomas P. Gloria, Ph.D (Industrial Ecology Consultants) [email protected]; Jack Geibig (Ecoform) [email protected]; Bill Stough (Bill Stough, LLC) [email protected].
Download PDF SM Transparency Report / EPD
SM Transparency Reports (TR) are ISO 14025 Type III environmental declarations (EPD) that enable purchasers and users to compare the potential environmental performance of products on a life cycle basis. They are designed to present information transparently to make the limitations of comparability more understandable. Environmental declarations of products that conform to the same PCR and include the same life cycle stages, but are made by different manufacturers, may not sufficiently align to support direct comparisons. They therefore cannot be used as comparative assertions unless the conditions as defined in ISO 14025 Section 6.7.2. ‘Requirements for Comparability’ are satisfied. In order to support comparative assertions, this EPD meets all comparability requirements stated in ISO 14025:2006. However, differences in certain assumptions, data quality, and variability between LCA data sets may still exist. As such, caution should be exercised when evaluating EPDs from different manufacturers or programs, as the EPD results may not be entirely comparable. Any EPD comparison must be carried out at the construction works level per ISO 21930:2017 guidelines, use the same sub-category PCR where applicable, include all relevant information modules, be limited to EPDs applying a functional unit, and be based on equivalent scenarios with respect to the context of construction works. The results of this EPD reflect an average performance by the product, and its actual impacts may vary on a case-to-case basis. Some LCA impact categories and inventory items are still under development and can have high levels of uncertainty. To promote uniform guidance on the data collection, calculation, and reporting of results, the ACLCA methodology (ACLCA 2019) was used.
SM Transparency Report (EPD) 