EPD: Mineral granules for flat roofing, with ceramic coating, from dacite, smog reducing, Smog-reducing Roofing Granules (3M)

3M Smog-reducing Roofing Granules are ceramic-coated minerals used as a surfacing material in asphalt roofing products that contain a photocatalytic layer as part of the ceramic coating matrix. These granules can be integrated into asphalt shingles as part of the shingle blend design or used in granule surfaced roofing membranes for low slope roofs. The photocatalytic layer generates oxygen (O2) and hydroxyl (·OH) radicals when activated by the sun. The radicals react with the nitrogen oxides (NO and NO2, or NOx) in smog to form NO3 which is a plant usable form of nitrogen. The NO3 ion deposits wash away with the rainwater over time. The catalyst activity is constant when exposed to UV, so the smog-reduction activity is a continuous process.

Manufacturer legal entity:

3M

Manufacturer:

3M

Country of manufacturer:

california, USA

Product name:

Mineral granules for flat roofing, with ceramic coating, from dacite, smog reducing

Commercial names:

Smog-reducing Roofing Granules

Material type:

Earth, masses and stones

Material subtype:

Engineered aggregates

Environmental & technical characteristics

Global warming potential (A1-A3):

0.118 kg CO2e/kg

Available units for calculation:

kg, ton

Unique identifier (OCLID):

5f305868421c15733e7e10ad

Sustainability data background information

EPD number:

S-P-01746

EPD program:

International EPD System

Publication year:

2020

Product category rules (PCR):

PCR 2012:01 Construction products and Construction services, ver. 2.3, valid until 2020-03-03

Environmental standard:

EN15804+A1

Verification status:

Third-party verified (as per ISO 14025)

Upstream database:

GaBi