Environmental Product Declaration
Foam Glass Gravel
by Glavel
Environmental Product Declaration (EPD) for Foam Glass Gravel, manufactured by Glavel. Declaration SmartEPD-2025-062-0470-01.2, prepared according to Smart EPD® Part A Product Category Rules for Building and Construction Products and Services, 1000, v1.2, valid until May 2, 2030.
- Declared unit
- 1 m3 of product (Loose Bulk Density = 0.12g/cm3, Measured Production Density = 0.29g/cm3)
- Valid until
- May 2, 2030
- PCR
- Smart EPD® Part A Product Category Rules for Building and Construction Products and Services, 1000, v1.2
Declaration details
- Manufacturer
- Glavel
- Program operator
- Smart EPD
- Declaration number
- SmartEPD-2025-062-0470-01.2
- Date of issue
- May 2, 2025
- Valid until
- May 2, 2030
- Product category rules (PCR)
- Smart EPD® Part A Product Category Rules for Building and Construction Products and Services, 1000, v1.2 (version 1.2)
- Standard
- ISO 14025:2006 and ISO 21930:2017
- Declared unit
- 1 m3 of product (Loose Bulk Density = 0.12g/cm3, Measured Production Density = 0.29g/cm3)
- System boundary
- Cradle to gate (A1 - A3)
- Product specificity
- Product Specific
- Manufacturing specificity
- Facility Specific
- Manufacturing plant
- GLAVEL, Inc (131 Red Pine Circle, Essex Junction, VT, USA)
- Product category
- Aggregates
- Verifier
- Sarah Curpen
- LCA software
- Pathways 1.0
- Program instructions
- Smart EPD General Program Instructions v.2.0, March 2025
Life cycle assessment results
Results per 1 m3 of product (Loose Bulk Density = 0.12g/cm3, Measured Production Density = 0.29g/cm3).
Environmental Impact Assessment Results
| Indicator | Unit | A1 | A2 | A3 | A1-A3 |
|---|---|---|---|---|---|
| GWP-total | kg CO2 eq | 1.25e+1 | 4.39e+0 | 2.44e+0 | 1.93e+1 |
| ODP | kg CFC 11 eq | 6.48e-7 | 6.71e-8 | 3.92e-8 | 7.54e-7 |
| AP | kg SO2 eq | 6.00e-2 | 2.00e-2 | 1.00e-2 | 8.00e-2 |
| EP | kg N eq | 9.00e-2 | 1.00e-2 | 6.14e-3 | 1.10e-1 |
| PM | kg PM2.5 eq | 1.16e+0 | 6.30e-1 | 3.40e-1 | 2.13e+0 |
Resource Use Indicators
| Indicator | Unit | A1 | A2 | A3 | A1-A3 |
|---|---|---|---|---|---|
| RPRE | MJ | 2.77e+1 | -1.05e-14 | 2.85e+2 | 3.13e+2 |
| RPRM | MJ | 1.15e+1 | ND | ND | 1.15e+1 |
| NRPRE | MJ | 1.27e+2 | -9.61e-14 | 4.43e+2 | 5.69e+2 |
| NRPRM | MJ | 6.40e+0 | ND | ND | 6.40e+0 |
| ADP-fossil | MJ | 1.25e+2 | -8.80e-14 | 2.91e+1 | 1.54e+2 |
| SM | kg | 5.00e-2 | ND | 6.00e-2 | 1.10e-1 |
| RSF | MJ | 4.27e-3 | ND | 4.67e-4 | 4.74e-3 |
| NRSF | MJ | 0 | 0 | 0 | 0 |
| FW | m3 | 3.90e-1 | ND | 1.88e+0 | 2.27e+0 |
| RE | MJ | 2.40e-1 | ND | 1.00e-2 | 2.50e-1 |
Waste and Output Flow Indicators
| Indicator | Unit | A1 | A2 | A3 | A1-A3 |
|---|---|---|---|---|---|
| HWD | kg | 1.02e+0 | ND | 2.90e-1 | 1.31e+0 |
| NHWD | kg | 2.58e+1 | ND | 3.69e+0 | 2.95e+1 |
| HLRW | kg | 4.91e-5 | ND | 1.16e-3 | 1.21e-3 |
| ILLRW | kg | 1.24e-4 | ND | 4.22e-3 | 4.34e-3 |
| MFR | kg | 3.76e-3 | ND | 9.67e-3 | 1.34e-2 |
| MER | kg | 2.88e-5 | ND | 3.89e-6 | 3.27e-5 |
| EEE | MJ | 6.00e-2 | ND | 7.91e-3 | 6.79e-2 |
ND = not declared. Life cycle modules: A1-A3 product stage, A4-A5 construction process, B use stage, C end of life, D benefits and loads beyond the system boundary.
Material composition
| Material/Component Category | Origin | % Mass |
|---|---|---|
| Recycled Glass Powder | Canada | 84.3 |
| Foaming Agent Dry Ingredients | US | 7.9 |
| Water | US | 7.8 |
Hazardous substances
No regulated hazardous or dangerous substances are included in this product.
Product description
Foam glass gravel is a lightweight, thermally insulating bulk aggregate made from recycled glass.
Interpretation
The LCA results demonstrate that the raw materials (A1) are the dominant contributors across impact categories, particularly for global warming potential (GWP), accounting for 65% of total emissions. Transportation (A2) represents between 20-25% of the GWP, primarily due to transporting the recycled glass powder to the manufacturing facility in VT. Manufacturing processes (A3) contribute between 10-15% of GWP, primarily due to the heating of the raw materials in the kiln.
LCIA results are relative expressions and do not predict impacts on category endpoints, the exceeding of thresholds, safety margins or risks. EPDs are comparable only when they follow the same PCR, functional unit and system boundary. The full EPD (PDF) contains the methodology, scenario assumptions and verification statement.