Environmental Product Declaration
Solid 4in Wall (Calgary)
by DIRTT
Environmental Product Declaration (EPD) for Solid 4in Wall (Calgary), manufactured by DIRTT. Declaration SmartEPD-2025-051-0319-02, prepared according to Smart EPD® Part A Product Category Rules for Building and Construction Products and Services, 1000, v1.01, valid until September 18, 2030.
- Functional unit
- 1 m2 of product of Solid 4" Wall (Frame + Insulation) for use in a demountable interior wall system, meeting the performance standards of the International Building Code.
- Valid until
- September 18, 2030
- PCR
- Smart EPD Part A Product Category Rules for Building and Construction Products and Services, 1000, v1.01
Declaration details
- Manufacturer
- DIRTT
- Program operator
- Smart EPD
- Declaration number
- SmartEPD-2025-051-0319-02
- Date of issue
- September 18, 2025
- Valid until
- September 18, 2030
- Product category rules (PCR)
- Smart EPD® Part A Product Category Rules for Building and Construction Products and Services, 1000, v1.01 (version 1.01)
- Standard
- ISO 14025:2006 and ISO 21930:2017
- Functional unit
- 1 m2 of product of Solid 4" Wall (Frame + Insulation) for use in a demountable interior wall system, meeting the performance standards of the International Building Code.
- System boundary
- Cradle to gate with other options (A1 - A3, A4, A5, C1 - C4, D)
- Product specificity
- Product Specific
- Manufacturing plant
- Dirtt-Calgary (Calgary, Alberta, Canada)
- Product category
- Furnishings › DemountablePartitions
- Verifier
- Ranjani Theregowda
- LCA software
- SimaPro 9.5
- Program instructions
- Smart EPD General Program Instructions v.1.0, November 2022
Life cycle assessment results
Results per 1 m2 of product of Solid 4" Wall (Frame + Insulation) for use in a demountable interior wall system, meeting the performance standards of the International Building Code..
Environmental Impact Assessment Results
| Indicator | Unit | A1-A3 | A4 | A5 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|
| GWP-total | kg CO2-eq | 3.71e+1 | 1.52e+0 | 1.49e-1 | 0 | 6.00e-2 | 0 | 1.08e+0 | -8.70e+0 |
| ODP | kg CFC-11 eq | 6.22e-7 | 3.73e-8 | 2.44e-10 | 0 | 1.47e-9 | 0 | 8.43e-10 | -2.19e-7 |
| AP | kg SO2 eq | 1.68e-1 | 3.22e-3 | 4.72e-5 | 0 | 1.27e-4 | 0 | 3.35e-4 | -3.24e-2 |
| EP | kg N eq | 1.41e-1 | 1.15e-3 | 1.63e-3 | 0 | 4.53e-5 | 0 | 1.54e-2 | -3.18e-2 |
| SFP | kg O3 eq | 2.04e+0 | 5.99e-2 | 8.07e-4 | 0 | 2.36e-3 | 0 | 5.50e-3 | -4.77e-1 |
Resource Use Indicators
| Indicator | Unit | A1-A3 | A4 | A5 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|
| ADPF | MJ | 3.70e+2 | 2.26e+1 | 1.56e-1 | 0 | 8.89e-1 | 0 | 6.32e-1 | -8.40e+1 |
| RPRE | MJ | 5.34e+1 | 3.38e-1 | 1.08e-2 | 0 | 1.33e-2 | 0 | 7.94e-2 | -1.09e+1 |
| RPRM | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NRPRE | MJ | 4.01e+2 | 2.31e+1 | 1.60e-1 | 0 | 9.08e-1 | 0 | 6.56e-1 | -8.76e+1 |
| NRPRM | MJ | 7.01e-2 | 9.73e-4 | 6.01e-6 | 0 | 3.83e-5 | 0 | 2.88e-5 | -3.50e-3 |
| SM | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -1.14e-3 |
| RSF | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NRSF | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RE | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| FW | m3 | 2.33e-1 | 3.13e-3 | 1.17e-4 | 0 | 1.23e-4 | 0 | 9.21e-4 | -4.25e-2 |
Waste and Output Flow Indicators
| Indicator | Unit | A1-A3 | A4 | A5 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|
| HLLRW | m3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| ILLRW | m3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CRU | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| MR | kg | 7.40e-2 | 0 | 4.44e-2 | 0 | 0 | 0 | 1.19e-1 | 0 |
| MER | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NHWD | kg | 2.98e-1 | 0 | 2.40e-1 | 0 | 0 | 0 | 2.24e+0 | 0 |
| HWD | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Carbon Emissions and Removals
| Indicator | Unit | A1-A3 | A4 | A5 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|
| BCRP | kg C | 6.52e-1 | ND | 0 | ND | ND | ND | 0 | 0 |
| BCEP | kg C | 0 | ND | 0 | ND | ND | ND | 6.52e-1 | 0 |
| BCRK | kg C | 1.06e-1 | ND | 0 | ND | ND | ND | 0 | 0 |
| BCEK | kg C | 0 | ND | 1.06e-1 | ND | ND | ND | 0 | 0 |
| CCE | kg C | 0 | ND | 0 | ND | ND | ND | 0 | 0 |
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 |
|---|---|---|
| Aluminum | 66.6 | |
| Hardware | 5.54 | |
| Insulation | 23.23 | |
| PVC | 4.54 | |
| Steel | 0.08 |
| Packaging material | Origin | Mass (kg) |
|---|---|---|
| Wood | 0.18 | |
| Ldpe | 0.05 | |
| Aluminum | 0.03 | |
| Steel | 0.03 |
| Biogenic carbon content | kg C per m2 |
|---|---|
| Biogenic carbon content in product | 0.65 |
| Biogenic carbon content in accompanying packaging | 0.09 |
Hazardous substances
No regulated hazardous or dangerous substances are included in this product.
Product description
DIRTT's prefabricated modular wall system combines versatility with superior performance. This customizable solution features a robust four-inch finished wall that accommodates electrical, data, and mechanical infrastructure. The system supports seamless integration of technology, displays, writable surfaces, and built-in storage. Precisely engineered for exceptional durability and acoustic performance, removable panels empower rapid installation and easy adaptation.
Interpretation
The product stage (A1-A3) shows the highest environmental impact, primarily due to raw material manufacturing and manufacturing energy use. For products with high manufacturing energy impacts, switching to renewable energy sources is recommended. Since raw materials significantly impact the environmental footprint, DIRTT should consider using alternative materials with lower environmental impacts. They should also seek suppliers who use sustainable manufacturing techniques and renewable energy. These changes would improve the overall sustainability of DIRTT's products.
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.