Environmental Product Declaration
GlasRoc® Tile Backer 5/8" - Montreal (Prospective EPD)
Environmental Product Declaration (EPD) for GlasRoc® Tile Backer 5/8" - Montreal (Prospective EPD), manufactured by CertainTeed Saint-Gobain. Declaration SmartEPD-2026-145-0977-01, prepared according to Smart EPD® Part B PCR for Gypsum Panels, 1000-004, v2.0, valid until July 10, 2027.
- Functional unit
- 1,000 ft2 of product
- Valid until
- July 10, 2027
- PCR
- Part B PCR for Gypsum Panels 1000-004
Declaration details
- Manufacturer
- CertainTeed Saint-Gobain
- Program operator
- Smart EPD
- Declaration number
- SmartEPD-2026-145-0977-01
- Date of issue
- July 10, 2026
- Valid until
- July 10, 2027
- Product category rules (PCR)
- Smart EPD® Part B PCR for Gypsum Panels, 1000-004, v2.0 (version 2)
- Standard
- ISO 14025:2006 and ISO 21930:2017
- Functional unit
- 1,000 ft2 of product
- System boundary
- Cradle to grave (A1 - A3, A4, A5, B1 - B7, C1 - C4)
- Product specificity
- Product Specific
- Manufacturing specificity
- Facility Specific
- Manufacturing plant
- CertainTeed Gypsum (700 1re Avenue, Sainte-Catherine, QC J5C 1C5, Canada)
- Product category
- Finishes › Gypsum
- Product service life
- 75 years
- Verifier
- Vijay Thakur, Individual Verifier
- LCA software
- Sphera LCA for Experts (formerly GaBi) 10.9.2
- Program instructions
- Smart EPD General Program Instructions v.2.0, March 2025
Life cycle assessment results
Results per 1,000 ft2 of product.
Environmental Impact Assessment Results
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GWP-total (incl biogenic) | kg CO2 eq | 2.35e+2 | 5.60e+1 | 2.11e+1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.92e+1 | 0 | 2.30e+1 |
| GWP-fossil | kg CO2 eq | 2.34e+2 | 5.57e+1 | 6.68e+1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.90e+1 | 0 | 2.29e+1 |
| GWP-total | kg CO2 eq | 2.40e+2 | 5.54e+1 | 1.99e+1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.89e+1 | 0 | 2.26e+1 |
| GWP-total (excl biogenic) | kg CO2 eq | 2.40e+2 | 5.50e+1 | 6.55e+1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.88e+1 | 0 | 2.25e+1 |
| ODP | kg CFC 11 eq | 6.33e-4 | 1.94e-11 | 5.16e-7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.66e-12 | 0 | 1.21e-10 |
| AP | kg SO2 eq | 5.40e-1 | 1.70e-1 | 3.71e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.85e-2 | 0 | 1.18e-1 |
| EP-freshwater | kg N eq | 4.23e-2 | 3.64e-5 | 1.00e-3 | ND | ND | ND | 0 | 0 | 0 | 0 | 0 | 1.25e-5 | 0 | 7.62e-6 |
| EP-Marine | kg N eq | 1.36e-1 | 1.55e-1 | 1.14e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.25e-2 | 0 | 5.90e-2 |
| POCP | kg O3 eq | 9.48e+0 | 4.54e+0 | 3.86e+0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.60e+0 | 0 | 2.12e+0 |
| ADP-fossil | MJ | 2.57e+3 | 7.05e+2 | 1.42e+3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.42e+2 | 0 | 3.34e+2 |
Resource Use Indicators
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PERE | MJ | 4.01e+3 | 3.18e+1 | 3.74e+2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.82e+0 | 0 | 5.20e+1 |
| PERM | MJ | 2.16e+1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| PERT | MJ | 4.03e+3 | 2.86e+1 | 3.74e+2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.82e+0 | 0 | 5.20e+1 |
| PENRE | MJ | 1.39e+3 | 7.89e+2 | 1.48e+3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.44e+2 | 0 | 3.42e+2 |
| PENRM | MJ | 2.18e+1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| PENRT | MJ | 1.41e+3 | 7.89e+2 | 1.48e+3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.44e+2 | 0 | 3.42e+2 |
| FW | m3 | 1.24e+1 | 2.45e-2 | 1.31e+0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.56e-3 | 0 | 3.70e-2 |
| SM | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RSF | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NRSF | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RE | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Waste and Output Flow Indicators
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HWD | kg | 7.13e+0 | 1.65e-7 | 6.30e-7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.11e-8 | 0 | 9.42e-8 |
| NHWD | kg | 4.99e+1 | 9.26e-2 | 1.30e+2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.86e-2 | 0 | 1.06e+3 |
| HLRW | kg | 9.57e-6 | 2.86e-6 | 1.21e-5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.83e-7 | 0 | 3.28e-6 |
| ILLRW | kg | 8.42e-3 | 2.40e-3 | 1.09e-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.41e-4 | 0 | 2.83e-3 |
| MFR | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| MER | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| MNER | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| EEE | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| EET | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Carbon Emissions and Removals
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BCRP | kg CO2 | -8.43e-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| BCEP | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.43e-2 |
| BCRK | kg CO2 | -1.10e-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| BCEK | kg CO2 | 0 | 0 | 1.10e-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| BCEW | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CCE | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CCR | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CWNR | kg CO2 | 0 | 0 | 0 | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | 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 |
|---|---|---|
| Gypsum | Confidential | 85 - 95 |
| Internally Recycled Gypsum | Confidential | 2 - 9 |
| Glass Mat | Confidential | 2 - 6 |
| Fiberglass | Confidential | 0 - 1 |
| Silicone | Confidential | 0 - 1 |
| Additives | Confidential | 0 - 1 |
| Packaging material | Origin | Mass (kg) |
|---|---|---|
| Tape | Confidential | 0-1 |
| Spacers | Confidential | 1.5-2 |
| Biogenic carbon content | kg C per 1000 ft2 |
|---|---|
| Biogenic carbon content in product | 0.023 |
| Biogenic carbon content in accompanying packaging | 0.003 |
Hazardous substances
No regulated hazardous or dangerous substances are included in this product
Scenarios
Transport to the building site (A4)
- Fuel type
- Diesel
- Vehicle type
- Commercial tractor-trailer truck
- Transport distance
- 448 km
- Capacity utilization
- 70%
- Weight of products transported
- 1175 kg
- Packaging mass
- 2.25 kg
Transport to the building site (A4)
- Fuel type
- Diesel
- Vehicle type
- Rail
- Transport distance
- 208 km
- Capacity utilization
- 70%
- Weight of products transported
- 1175 kg
- Packaging mass
- 2.25 kg
Transport to the building site (A4)
- Fuel type
- Diesel
- Vehicle type
- Single unit truck
- Transport distance
- 40 km
- Capacity utilization
- 70%
- Weight of products transported
- 1175 kg
- Packaging mass
- 2.25 kg
End of life (C1-C4)
- Collected with mixed construction waste
- 1175 kg
- Product or material for final disposal
- 1175 kg
Product description
GlasRoc® Tile Backer Infinaé™ CarbonLow™ is an excellent option for those looking to create a durable and long-lasting base for their tile installations. Made from high-quality materials, GlasRoc Tile Backer provides superior protection against moisture, mold, and other common problems associated with tile installations. GlasRoc Tile Backer features a unique design that includes a fiberglass mat embedded in a gypsum core, providing exceptional strength and stability. This design ensures that the tile installation remains intact and stable, even in high-moisture areas such as bathrooms and kitchens. Easy to install, GlasRoc Tile Backer can be cut to size using a utility knife or saw, ensuring a perfect fit for any project. Its lightweight construction also makes it easy to handle and work with, reducing the risk of fatigue and injury during installation. Designed to resist moisture and mold, GlasRoc Tile Backer is an ideal option for areas that require a high level of moisture resistance, such as bathrooms, showers, and saunas. GlasRoc Tile Backer is also fire-rated, making it a safe option for any project.
Interpretation
Based on the results of the life cycle assessment model, the environmental impacts are primarily driven by the raw material, installation, and raw material transportation life cycle stages. Raw materials account for approximately 34% of the Global Warming Potential impacts, with the majority of these impacts attributable to the glass mat, which represents the largest contributor within the raw material stage. Installation also contributes significantly to the overall cradle-to-grave impacts due to the assumptions required by the Product Category Rules , while transportation of raw materials further contributes to the product's environmental footprint.
Although the manufacturing stage (A3) contributes the smallest share of the product's cradle-to-grave GWP impacts, it was identified as the primary opportunity for environmental improvement because it is directly controlled by the manufacturer. The reduction in environmental impacts is primarily driven by the transition from fossil fuel-based manufacturing to electrified production powered by renewable electricity. By replacing natural gas with renewable hydroelectricity in Québec, the project significantly reduces direct (Scope 1) emissions associated with energy-intensive manufacturing processes.
In addition, the implementation of multiple heat recovery systems, enhanced energy-efficient plant design, and improved process control strategies further reduces overall energy demand and optimizes operational performance. Together, these improvements are expected to increase manufacturing energy efficiency , resulting in meaningful reductions in environmental impacts while supporting a lower carbon manufacturing process. Despite the relatively small contribution of the A3 stage to the overall product footprint, these targeted manufacturing improvements provide measurable environmental benefits and demonstrate the effectiveness of decarbonizing energy intensive production processes.
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.