GlasRoc® Tile Backer 5 / 8” - Montreal

Declaration details

Manufacturer

CertainTeed Saint-Gobain

Program operator

Smart EPD

Declaration number

SmartEPD-2025-038-0237-2.2

Date of issue

November 13, 2025

Valid until

November 13, 2030

Product category rules (PCR)

NSF PCR for Gypsum Panel Products (version 1.1)

Standard

ISO 14025:2006 and ISO 21930:2017

Declared unit

92.9 m2 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

Ranjani Theregowda

LCA software

Sphera LCA for Experts (formerly GaBi) 10.7.1

Program instructions

Smart EPD General Program Instructions v.1.0, November 2022

Life cycle assessment results

Results per 92.9 m2 of product.

Environmental Impact Assessment Results

Resource Use Indicators

Waste and Output Flow Indicators

Carbon Emissions and Removals

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

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%

Packaging mass

1.938 kg

Transport to the building site (A4)

Fuel type

Diesel

Vehicle type

Rail

Transport distance

208 km

Capacity utilization

70%

Packaging mass

1.938 kg

Transport to the building site (A4)

Fuel type

Diesel

Vehicle type

Single unit truck

Transport distance

40 km

Capacity utilization

70%

Packaging mass

1.938 kg

End of life (C1-C4)

Collected with mixed construction waste

974.05 kg

Product or material for final disposal

974.05 kg

Product description

CertainTeed's GlasRoc Tile Backer 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 Type X is also fire-rated, making it a safe option for any project.

Interpretation

Based on the results from the life cycle assessment model, the life cycle impacts are strongly driven by the manufacture. The impacts of the manufacture are primarily attributed to the natural gas usage needed for the ovens to dry the boards. The natural gas usage in the manufacture accounts for as much as 37% of the cradle-to-grave environmental impact potentials for CertainTeed GlasRoc Tile Backer 5/8” Gypsum Boards at the Montreal, QC facility.

The manufacturing of gypsum board (A3) has the highest contribution to Global Warming Potential impacts. The switch from paper facing material to fiberglass mat accounts for the higher raw material impacts for GlasRoc Tile Backer versus typical gypsum board. The use of internally recycled gypsum material helps to reduce the overall environmental impact potentials by reducing the amount of external raw materials needed for the process.

Another potentially significant contributor to the overall environmental impact results is seen in the results for the installation of the Gypsum Boards. The installation waste accounts for the majority of the impacts for installation. The PCR requires the use of a 10% installation waste scenario in the absence of actual data. As there is currently no actual installation data available, and because installation techniques may vary widely among installers, CertainTeed has little to no influence on the installation impacts.