Introduction
Allegion is a global leader in safety and security, providing solutions for homes, businesses, schools, and institutions. With leading brands like LCN®, Schlage®, Steelcraft®, and Von Duprin®, Allegion focuses on security around doors and adjacent areas. As a subsidiary, Zero International is recognized for quality door sealing hardware, offering durable perimeter seals and thresholds engineered for challenging conditions and supporting green building applications by promoting heating and cooling efficiency. Allegion is a $2 billion company with products sold in nearly 130 countries.
This Environmental Product Declaration (EPD) is prepared in accordance with ISO 14025, EN 15804, and ISO 21930:2007. EPDs provide information on the environmental impacts of products over their life cycle, based on Life Cycle Assessment (LCA). They complement, but do not replace, certifications addressing specific performance benchmarks or health assessments.
1. Product Definition and Information
1.1. Description of Company/Organization
Allegion is a global pioneer in safety and security, with leading brands like LCN®, Schlage®, Steelcraft® and Von Duprin®. Focusing on security around the door and adjacent areas, Allegion produces a range of solutions for homes, businesses, schools and other institutions. Allegion is a $2 billion company, with products sold in almost 130 countries. As a subsidiary of Allegion plc, Zero International brand is recognized as the standard for quality in door sealing hardware. Their perimeter seals and thresholds are engineered for durability and reliable performance even under the most challenging installation and operating conditions. They also support green building applications by promoting heating and cooling efficiency.
1.2. Product Description
Zero's patented automatic door bottom technology ensures an efficient seal against the floor or saddle. As the door is closed, the adjustable plunger is compressed against the door frame, activating a concealed flat spring mechanism. This mechanism drops the seal smoothly from the housing in a scissor-like motion. The door seal compresses on either even or uneven surfaces and retracts automatically when the door is opened. All Zero automatic door bottoms function the same way. The concealed spring mechanism causes the insert seal to activate on the hinge side first. It prevents the seal from dragging along the floor or threshold while the door is being closed to avoid door hang-up or closing delay.
Table 1: Product specifications
Automatic Door Bottom Model | width (mm) | height (mm) |
---|---|---|
360AA Heavy Duty Automatic Door Bottoms | 23.5 | 40.0 |
355A Regular Duty Automatic Door Bottoms | 38.1 | 19.1 |
365AA Heavy Duty Automatic Door Bottoms | 23.3 | 48.3 |
362AA Heavy Duty Automatic Door Bottoms | 23.3 | 48.3 |
For a complete list of products, see Zero's Door Sealing Systems product catalog.
1.3. Application
Zero automatic door bottoms are designed for use in commercial applications such as healthcare, education, hospitality, and retail. The product can also be used residentially if desired.
Table 2: BHMA standards
AUTOMATIC DOOR BOTTOM MODEL | ANSI/BHMA |
---|---|
360AA Heavy Duty Automatic Door Bottoms | R3C3241 |
355A Regular Duty Automatic Door Bottoms | R3E3241 |
365AA Heavy Duty Automatic Door Bottoms | R3B3341 |
362AA Heavy Duty Automatic Door Bottoms | R3B3441 |
* All Zero automatic door bottoms are designed for heavy-duty applications and far exceed BHMA A156.22 requirements.
1.4. Declaration of Methodological Framework
This LCA is a cradle-to-gate with options LCA. A summary of the life cycle stages is provided in Table 11. The cut-off criteria are described in Section 2.3, and allocation procedures are described in Section 2.8. No known flows are deliberately excluded from this EPD.
1.5. Technical Data
Table 3: Zero automatic door bottom classification standards
CLASSIFICATION | STANDARD | VALUE/TESTING RESULT | MODEL |
---|---|---|---|
FIRE RATED-UL10C | ANSI/UL 10C | Pass | All |
SOUND | OEM Acoustical Rating | Pass | 355A, 365AA, 362AA |
AIR INFILTRATION | ASTM E-283 | Tested | 355A, 365AA |
This chart illustrates the most common types of automatic door bottom classifications.
1.6. Properties of Declared Product as Delivered
For shipping, all automatic door bottoms are packaged individually in cardboard boxes. Along with the automatic door bottom, an instruction manual, labels, and a screw bag are also included.
1.7. Material Composition
The materials that make up the automatic door bottoms are indicated in Table 4.
Table 4: Material Composition
COMPONENT | MATERIAL | MASS % |
---|---|---|
Product | Aluminum | 56.9 – 70.9% |
Neoprene | 5.1 – 6.2% | |
EPDM Rubber | 2.3 – 2.8% | |
Steel | 0.6 – 2.8% | |
Brass | 18.9 – 32.7% | |
Silicone | 0.0 – 9.3% | |
Fasteners | Steel | 0.7 – 1.1% |
1.8. Manufacturing
Zero automatic door bottom products are manufactured at Allegion's Indianapolis plant, located at 2720 Tobey Dr, Indianapolis, IN 46219. Allegion receives metal sub-components from their suppliers in the US and China. These components are then assembled, finished, and packaged in the facility in Indianapolis. Along with the automatic door bottom, an instruction manual, labels, and a screw bag are also included in cardboard boxes. Product is shipped to customers via UPS or LTL carriers.
Natural resources used in the manufacturing process include electricity, natural gas, and water. Steel waste is also generated as parts of the product are formed, sheared, and assembled. All steel waste is collected and recycled offsite.
1.9. Packaging
Packaging utilized in the shipment of the product is described in Table 5.
Table 5: Packaging
PACKAGING TYPE | MATERIAL | AMOUNT (KG) | DISPOSAL PATHWAY |
---|---|---|---|
Screw pack bag | Polypropylene | 0.0010 | Landfilled (68%), Incinerated (17%), Recycled (15%) |
Endcap bag | Polypropylene | 0.0001 | Landfilled (68%), Incinerated (17%), Recycled (15%) |
Plastic sleeve | Polypropylene | 0.0100 | Landfilled (68%), Incinerated (17%), Recycled (15%) |
Instruction sheet | Paper | 0.0400 | Landfilled (20%), Incinerated (5%), Recycled (75%) |
1.10. Transportation
It is assumed that all raw materials are distributed by truck, based on global region. An average distance using this information was calculated and used in the model. An average shipping distance from the manufacturing location to the customer was utilized and was calculated from sales records. The transportation distance for all waste flows is assumed to be 161 km based on best available data.
1.11. Product Installation
Detailed installation instructions can be found online. While installation equipment is required to install the product, it is not included in the study as these are multi-use tools and the impacts per declared unit are considered negligible. All waste generated during installation, including packaging waste, is disposed of according to the tables found in Section 2.8.5 of Part A: Life Cycle Assessment Calculation Rules and Report Requirements from UL Environment.
1.12. Reuse, Recycling, and Energy Recovery
Zero automatic door bottom products may be recycled or reused at the end of life. The LCA that this EPD is created from takes the conservative approach by assuming that all products are disposed of within the system boundary.
1.13. Disposal
Disposal pathways in the EPD are modeled in accordance with disposal routes and waste classification referenced in Sections 2.8.5 and 2.8.6 of Part A: Life Cycle Assessment Calculation Rules and Report Requirements from UL Environment. This indicates an end-of-life split amongst landfill, recycling, and incineration pathways.
2. Life Cycle Assessment Background Information
2.1. Declared Unit
The declared unit is one automatic door bottom per standard doorleaf, as indicated in Table 6.
Table 6: Declared Unit
NAME | VALUE | UNIT |
---|---|---|
Declared Unit | 1 door bottom per standard door leaf | |
Mass per Declare Unit, excluding fasteners | 1.24 | kg |
Fasteners | 0.01 | kg |
2.2. System Boundary
The type of EPD is cradle-to-gate with options. All LCA modules are included and are summarized in Table 7.
Table 7: System Boundary
MODULE NAME | DESCRIPTION | ANALYSIS PERIOD | SUMMARY OF INCLUDED ELEMENTS |
---|---|---|---|
A1 | Product Stage: Raw Material Supply | 2018 | Raw Material sourcing and processing as defined by secondary data. |
A2 | Product Stage: Transport | 2018 | Shipping from supplier to manufacturing site. Fuel use requirements estimated based on product weights and estimated distance. |
A3 | Product Stage: Manufacturing | 2018 | Energy, water and material inputs required for manufacturing products from raw materials. Packaging materials and manufacturing waste are included as well. |
A4 | Construction Process Stage: Transport | 2018 | Shipping from manufacturing site to project site. Fuel use requirements estimated based on product weights and mapped distance. |
A5 | Construction Process Stage: Installation | 2018 | Installation materials, installation waste and packaging material waste. |
B1 | Use Stage: Use | MND | Module not declared |
B2 | Use Stage: Maintenance | MND | Module not declared |
B3 | Use Stage: Repair | MND | Module not declared |
B4 | Use Stage: Replacement | MND | Module not declared |
B5 | Use Stage: Refurbishment | MND | Module not declared |
B6 | Operational Energy Use | MND | Module not declared |
B7 | Operational Water Use | MND | Module not declared |
C1 | EOL: Deconstruction | 2018 | No inputs required for deconstruction. |
C2 | EOL: Transport | 2018 | Shipping from project site to landfill. Distance assumed to be 100 miles from installation site to landfill. |
C3 | EOL: Waste Processing | 2018 | Waste processing not required. All waste can be processed as is. |
C4 | EOL: Disposal | 2018 | Assumes all products are sent to landfill. Landfill impacts modeled based on secondary data. |
D | Benefits beyond system | MND | Module not declared |
2.3. Estimates and Assumptions
All estimates and assumptions are within the requirements of ISO 14040/44. The majority of the estimations are within the primary data. The primary data was collected as annual totals including all utility usage and production information. For the LCA, the usage information was divided by the production to create an energy and water use per declared unit, i.e., one automatic door bottom. Another assumption is that the installation tools are used enough times that the per automatic door bottom impacts are negligible.
2.4. Cut-off Criteria
All inputs for which data was available were included. Material inputs greater than 1% (based on total mass of the final product) were included within the scope of analysis. Material inputs less than 1% were included if sufficient data was available to warrant inclusion and/or the material input was thought to have significant environmental impact. Cumulative excluded material inputs and environmental impacts are less than 5% based on total weight of the functional unit.
2.5. Data Sources
Primary data were collected by facility personnel and from utility bills and was used for all manufacturing processes. Whenever available, supplier data was used for raw materials used in the production process. When primary data did not exist, secondary data for raw material production was utilized from GaBi Database Version 9.2.0.58, Service pack 39.
2.6. Data Quality
Geographical Coverage
The geographical scope of the manufacturing portion of the life cycle is Indianapolis, Indiana. This LCA uses country specific energy datasets that take into account US eGrid specific energy and transportation mixes. Overall, the geographic coverage of primary data is considered good.
Time Coverage
Primary data were provided by Allegion associates and represent calendar year 2018. Using 2018 data meets the PCR requirement that manufacturer specific data be within the last 5 years. Time coverage of this data is considered good. Data necessary to model cradle-to-gate unit processes was sourced from thinkstep LCI datasets. Time coverage of the GaBi datasets varies from approximately 2010 to present. All datasets rely on at least one 1-year average data. Overall time coverage of the datasets is considered good and meets the requirement of the PCR that all data be updated within a 10-year period. The specific time coverage of secondary datasets can be referenced in the dataset references table in each supplemental LCA report.
Technological Coverage
Primary data provided by Allegion are specific to the technology that the company uses in manufacturing their product. It is site specific and considered of good quality. It is worth noting that the energy and water used in manufacturing the product includes overhead energy such as lighting, heating, and sanitary use of water. Sub-metering was not available to extract process only energy and water use from the total energy use. Sub-metering would improve the technological coverage of data quality. Data necessary to model cradle-to-gate unit processes was sourced from thinkstep LCI datasets. Technological coverage of the datasets is considered good relative to the actual supply chain of Allegion. While improved life cycle data from suppliers would improve technological coverage, the use of lower quality generic datasets does meet the goal of this EPD.
2.7. Period under Review
The period under review is calendar year 2018.
2.8. Allocation
General principles of allocation were based on ISO 14040/44. Where possible, allocation was avoided. When allocation was necessary, it was done on a physical mass basis. Allocation was most prevalent in the secondary GaBi datasets used to represent upstream processes. As a default, GaBi datasets use a physical mass basis for allocation.
3. Life Cycle Assessment Scenarios
Table 8: Transport to the building site (A4)
NAME | VALUE | UNIT |
---|---|---|
Fuel type | Diesel | |
Liters of fuel | 39.0625 | l/100km |
Vehicle type | Truck | |
Transport distance | 621.30 | km |
Capacity utilization | 0.65 | % |
Gross density of products transported | 221.71 | kg/m³ |
Capacity utilization volume factor | 1 | - |
Table 9: Installation into the building (A5)
NAME | VALUE | UNIT |
---|---|---|
Fasteners | 0.01 | kg |
Product loss per functional unit | 0 | kg |
Waste materials at the construction site before waste processing, generated by product installation | 0 | kg |
Direct emissions to ambient air, soil and water | 0 | kg |
VOC emissions | N/A | µg/m³ |
Table 10: End of life (C1-C4)
NAME | VALUE | UNIT | |
---|---|---|---|
Collection process | Collected separately | 0 | kg |
Collected with mixed construction waste | 1.250 | kg | |
Reuse | 0 | kg | |
Recycling | 1.063 | kg | |
Recovery | Landfill | 0.187 | kg |
Disposal | Incineration | 0 | kg |
Product or material for final deposition | 0.187 | kg |
4. Life Cycle Assessment Results
Table 11: Description of the system boundary modules
PRODUCT STAGE | CONSTRUCT- ION PROCESS STAGE | USE STAGE | END OF LIFE STAGE | BENEFITS AND LOADS BEYOND THE SYSTEM BOUNDARY | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A1 | A2 | A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D | ||
Cradle to Gate with Options | X | X | X | X | X | MND | MND | MND | MND | MND | MND | MND | X | X | X | X | MND |
Table 12: CML Results
CML v4.2 | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ADP-elements [kg Sb eq] | 1.24E-04 | 1.88E-08 | 2.48E-06 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 2.88E-09 | 0.00E+00 | 3.21E-09 | 0.00E+00 |
ADP-fossil fuel [MJ] | 1.84E+02 | 1.39E+00 | 3.70E+00 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 2.13E-01 | 0.00E+00 | 1.21E-01 | 0.00E+00 |
AP [kg SO2 eq] | 4.49E-02 | 3.35E-04 | 9.22E-04 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 3.09E-05 | 0.00E+00 | 3.30E-05 | 0.00E+00 |
EP [kg Phosphate eq] | 3.61E-03 | 9.42E-05 | 8.35E-05 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 8.94E-06 | 0.00E+00 | 7.53E-06 | 0.00E+00 |
GWP [kg CO2 eq] | 1.42E+01 | 1.01E-01 | 3.01E-01 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 1.52E-02 | 0.00E+00 | 7.80E-03 | 0.00E+00 |
ODP [kg CFC 11 eq] | 2.24E-08 | 9.35E-18 | 4.48E-10 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 1.44E-18 | 0.00E+00 | 2.83E-17 | 0.00E+00 |
POCP [kg Ethene eq] | 2.68E-03 | -4.77E-05 | 5.81E-05 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | -4.65E-06 | 0.00E+00 | 2.92E-06 | 0.00E+00 |
Table 13: TRACI Results
TRACI v4.2 | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AP [kg SO2 eq] | 4.41E-02 | 4.54E-04 | 9.19E-04 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 4.09E-05 | 0.00E+00 | 4.32E-05 | 0.00E+00 |
EP [kg N eq] | 2.45E-03 | 3.79E-05 | 5.73E-05 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 3.98E-06 | 0.00E+00 | 4.86E-06 | 0.00E+00 |
GWP [kg CO2 eq] | 1.42E+01 | 1.01E-01 | 3.00E-01 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 1.52E-02 | 0.00E+00 | 7.75E-03 | 0.00E+00 |
ODP [kg CFC 11 eq] | 2.44E-08 | -5.31E-16 | 4.89E-10 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | -8.13E-17 | 0.00E+00 | -4.07E-16 | 0.00E+00 |
Resources [MJ] | 1.94E+01 | 1.86E-01 | 3.92E-01 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 2.86E-02 | 0.00E+00 | 1.56E-02 | 0.00E+00 |
SFP [kg O3 eq] | 5.21E-01 | 1.06E-02 | 1.08E-02 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 9.19E-04 | 0.00E+00 | 7.15E-04 | 0.00E+00 |
4.2. Life Cycle Inventory Results
Table 14: Resource Use
IMPACT CATEGORY | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PERE [MJ] | 3.64E+01 | 4.33E-02 | 7.24E-01 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 6.64E-03 | 0.00E+00 | 9.45E-03 | MND |
PERM [MJ] | 2.08E+02 | 1.40E+00 | 4.17E+00 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 2.15E-01 | 0.00E+00 | 1.24E-01 | MND |
PENRE [MJ] | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND |
PENRM [MJ] | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND |
SM [kg] | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND |
RSF [MJ] | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND |
NRSF [MJ] | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND |
RE [MJ] | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND |
FW [m³] | 1.49E-01 | 1.68E-04 | 2.98E-03 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 2.58E-05 | 0.00E+00 | 1.48E-05 | MND |
Table 15: Output Flows and Waste Categories
IMPACT CATEGORY | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
HWD [kg] | 1.30E-02 | 1.09E-08 | 1.10E-10 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 1.67E-09 | 0.00E+00 | 4.18E-10 | MND |
NHWD [kg] | 2.22E+00 | 5.08E-05 | 1.63E-02 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 7.77E-06 | 0.00E+00 | 1.70E-01 | MND |
HLRW [kg] | 1.13E-05 | 3.60E-09 | -4.21E-09 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 5.52E-10 | 0.00E+00 | 1.45E-09 | MND |
ILLRW [kg] | 9.23E-03 | 2.98E-06 | -3.52E-06 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 4.56E-07 | 0.00E+00 | 1.15E-06 | MND |
CRU [kg] | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 0.00E+00 | 9.64E-01 | 0.00E+00 | MND |
R [kg] | 0.00E+00 | 0.00E+00 | 3.59E-02 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND |
MER [kg] | 0.00E+00 | 0.00E+00 | 4.43E-03 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND |
EE [MJ] | 0.00E+00 | 0.00E+00 | 1.08E-02 | MND | MND | MND | MND | MND | MND | MND | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | MND |
5. Interpretation
The dominance analysis shows that the Production Stage (A1-A3) of the life cycle is responsible for the vast majority of impacts across all impact categories. Specifically, phases A1-A3 contribute the most to ADP-fossil through electricity and thermal energy used during manufacturing. The resources used to extract, and process (electricity and thermal energy) steel and aluminum mainly contribute to the impacts in the A1-A3 module. Transportation to customer (A4) and installation (A5) stages have second and third highest ADP-fossil impacts respectively. This is mainly due to fuels used for transportation to customer and steel fasteners used to install the product.
6. Additional Environmental Information
6.1. Environment and Health During Manufacturing
Allegion meets all federal and state standards related to the Environment and Health during manufacturing. Additionally, Allegion employs a strict waste minimization and recycling program that reduces and recycles waste produced in the manufacturing process. Beyond what is regulated, there are no additional environment and health considerations during the production of goods.
6.2. Environment and Health During Use
There are no environmental or health considerations during the use of the product.
7. Supporting Documentation
The full text of the acronyms found in Section 4 are found in Table 16.
Table 16: Acronym Key
ACRONYM | TEXT | ACRONYM | TEXT |
---|---|---|---|
ADP-elements | Abiotic depletion potential for non-fossil resources | GWP | Global warming potential |
ADP-fossil | Abiotic depletion potential for fossil resources | OPD | Depletion of stratospheric ozone layer |
AP | Acidification potential of soil and water | POCP | Photochemical ozone creation potential |
EP | Eutrophication potential | Resources | Depletion of non-renewable fossil fuels |
LCI Indicators | |||
PERE | Use of renewable primary energy excluding renewable primary energy resources used as raw materials | PENRT | Total use of non-renewable primary energy resources (primary energy and primary energy resources used as raw materials) |
PERM | Use of renewable primary energy resources used as raw materials | SM | Use of secondary materials |
PERT | Total use of renewable primary energy resources (primary energy and primary energy resources used as raw materials) | RSF | Use of renewable secondary fuels |
PENRE | Use of non-renewable primary energy excluding non-renewable primary energy resources used as raw materials | NRSF | Use of non-renewable secondary fuels |
PENRM | Use of non-renewable primary energy resources used as raw materials | FW | Net use of fresh water |
HWD | Disposed-of-hazardous waste | MFR | Materials for recycling |
NHWD | Disposed-of non-hazardous waste | MET | Materials for energy recovery |
RWD | Disposed-of Radioactive waste | EEE | Exported electrical energy |
CRU | Components for reuse | EET | Exported thermal energy |
8. References
- Life Cycle Assessment, Allegion, LCA report for Zero Gasketing and Thresholds. WAP Sustainability Consulting. April 2020.
- Product Category Rule (PCR) for preparing an Environmental Product Declaration (EPD) for Product Group Builders Hardware (UL 9004). Version: April 3rd, 2014
- ISO 14044: 2006 Environmental Management – Life cycle assessment – Requirements and Guidelines.
- ISO 14025: 2006 Environmental labels and declarations – Type III environmental declarations – Principles and Procedures.
- ISO 21930: 2007 - Sustainability in building construction -- Environmental declaration of building products
- EN 15804: 2012-04 - Sustainability of construction works – Environmental Product Declarations – Core rules for the product category of construction product.