Environmental Product Declaration
Vycor® Ice & Water Shield® and Vycor® Ice & Water Shield® HT
Environmental Product Declaration (EPD) for Vycor® Ice & Water Shield® and Vycor® Ice & Water Shield® HT, manufactured by CertainTeed Saint-Gobain. Declaration SmartEPD-2025-087-0610-01.1, prepared according to NSF Product Category Rules for Water Resistive and Air Barriers, valid until September 30, 2030.
- Declared unit
- 1 m2 of product
- Valid until
- September 30, 2030
- PCR
- PCR for Water Resistive and Air Barriers
Declaration details
- Manufacturer
- CertainTeed Saint-Gobain
- Program operator
- Smart EPD
- Declaration number
- SmartEPD-2025-087-0610-01.1
- Date of issue
- September 30, 2025
- Valid until
- September 30, 2030
- Product category rules (PCR)
- NSF Product Category Rules for Water Resistive and Air Barriers (version 4)
- Standard
- ISO 14025:2006 and ISO 21930:2007
- Declared unit
- 1 m2 of product
- System boundary
- Cradle to gate (A1 - A3)
- Product specificity
- Product Average
- Manufacturing specificity
- Manufacturer Average
- Manufacturing plants
- CertainTeed (350 Magnolia Dr, Mt Pleasant, TN 38474, USA); CertainTeed (6051 W 65th St, Bedford Park, IL 60638, USA)
- Verifier
- Arka Pandit
- LCA software
- Sphera LCA for Experts (formerly GaBi) 10.9
- Program instructions
- Smart EPD General Program Instructions v.2.0, March 2025
Life cycle assessment results
Results per 1 m2 of product.
Environmental Impact Assessment Results
| Indicator | Unit | A1-A3 |
|---|---|---|
| GWP-total | kg CO2 eq | 2.50e+0 |
| GWP-fossil | kg CO2 eq | 2.89e+0 |
| ODP | kg CFC 11 eq | 1.17e-8 |
| AP | kg SO2 eq | 1.10e-2 |
| EP | kg N eq | 3.64e-3 |
| POCP | kg O3 eq | 1.79e-1 |
| ADP-fossil | MJ | 9.30e+1 |
Resource Use Indicators
| Indicator | Unit | A1-A3 |
|---|---|---|
| PERE | MJ | 0 |
| PERM | MJ | 0 |
| PERT | MJ | 0 |
| PENRE | MJ | 0 |
| PENRM | MJ | 0 |
| PENRT | MJ | 0 |
| RPRE | MJ | 0 |
| RPRM | MJ | 0 |
| RPRT | MJ | 0 |
| NRPRE | MJ | 6.64e+1 |
| NRPRM | MJ | 2.68e+1 |
| NRPRT | MJ | 9.32e+1 |
| SM | kg | 0 |
| RSF | MJ | 0 |
| NRSF | MJ | 0 |
| FW | m3 | 1.10e-2 |
| RE | MJ | 0 |
Waste and Output Flow Indicators
| Indicator | Unit | A1-A3 |
|---|---|---|
| HWD | kg | 1.27e-4 |
| NHWD | kg | 1.27e-1 |
| HLRW | kg | 7.35e-7 |
| ILLRW | kg | 6.39e-4 |
| CRU | kg | 0 |
| MFR | kg | 0 |
| MER | kg | 0 |
| MNER | kg | 0 |
| EEE | MJ | 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 |
|---|---|---|
| Printed Film | Undisclosed | 5 - 16 |
| Rubberized Asphalt | Undisclosed | 74 - 85 |
| Poly-Coated Release Paper | Undisclosed | 6 - 16 |
| Packaging material | Origin | Mass (kg) |
|---|---|---|
| Pallet (Ice and Water Shield) | Undisclosed | 3.31E-02 |
| Shrink Wrap (Ice and Water Shield) | Undisclosed | 4.83E-02 |
| Corrugated Box (Ice and Water Shield) | Undisclosed | 1.21E-01 |
| Pallet (Ice and Water Shield HT) | Undisclosed | 3.29E-02 |
| Shrink Wrap (Ice and Water Shield HT) | Undisclosed | 0.00E+00 |
| Corrugated Box (Ice and Water Shield HT) | Undisclosed | 1.16E-01 |
| Biogenic carbon content | kg C per m2 |
|---|---|
| Biogenic carbon content in product | 0.0514 |
| Biogenic carbon content in accompanying packaging | 0.0743 |
Hazardous substances
No substances required to be reported as hazardous are associated with the production of this product
Product description
VYCOR® premier, self-adhered roofing underlayments offer several benefits, including sealing around fasteners to prevent leaks due to water backup from ice dams or wind-driven rain. Superior adhesion to the roof deck ensures a firm bond while the proprietary slip-resistant embossed surface enhances traction and safety during installation. VYCOR® underlayment membranes form watertight laps with ease, and safeguards under various standard sloped roof coverings. With a proven track record spanning over 45 years, VYCOR® underlayments are a trusted name in the industry.
VYCOR® ICE & WATER SHIELD® – the original, best-in-class underlayment
VYCOR® ICE & WATER SHIELD® HT – meets the challenges inherent in metal roofs
Interpretation
Based on the results from the life cycle assessment, the life cycle impacts are strongly driven by the raw material stage. For all products, the rubberized asphalt had the highest impact within the raw material stage, this is strongly driven by the SBS and asphalt binder that is included in the rubberized asphalt composition. If possible, incorporating more recycled content into the product will help reduce the environmental impacts of the raw materials stage in the life cycle of the product. As recycled content increases, the raw materials driving impacts will decrease, thus improving the overall environmental impacts. It is important to work with R&D to see where action can be taken to reduce the environmental impact of the product, while maintaining integrity. The printed film, composed of polyethylene high density film, is the second highest contributor to the raw material impacts. Increasing recycled content as mentioned above, will help decrease the usage of these larger contributors to the impacts.
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.