Wall Mirror

Material Composition Assumptions

Wall mirrors consist primarily of float glass made from soda-lime composition containing silica, soda ash, and limestone. The glass substrate typically weighs 2,700 grams and represents approximately 95% of the total product weight. A thin reflective coating of aluminum or silver metal is applied through vacuum deposition, adding roughly 10 grams or 0.3% of the total mass. Protective packaging comprises paper and cardboard materials weighing about 150 grams, representing 4.7% of the finished product weight for shipping and handling protection.

Manufacturing Geography

Mirror production occurs predominantly in China, which maintains the largest global manufacturing capacity for glass products. Chinese facilities typically operate with grid electricity averaging 531 gCO2/kWh, contributing significantly to the overall carbon intensity. European manufacturers in Germany and the United Kingdom provide alternative supply sources with lower grid intensities but smaller production volumes. The concentration of raw material suppliers and established glass manufacturing infrastructure in these regions drives the geographic distribution of mirror production facilities.

Regional Variation

Manufacturing Region	Grid Intensity	Estimated CCI Score	Adjustment vs Default
China	531 gCO2/kWh	25.0	baseline
Germany	366 gCO2/kWh	21.2	-15%
United Kingdom	233 gCO2/kWh	17.3	-31%
United States	386 gCO2/kWh	21.8	-13%
India	708 gCO2/kWh	29.4	+18%

Provenance Override Guidance

1. Submit factory-specific energy consumption data showing actual electricity and fuel usage per unit of mirror production output.

2. Provide documentation of recycled glass content percentage used in the manufacturing process, including supplier certifications for cullet sourcing.

3. Supply transportation distance records and shipping method details from manufacturing facility to final distribution point.

4. Document specific coating process energy requirements and equipment efficiency ratings for metal deposition operations.

5. Submit regional grid emission factors for the actual manufacturing location with timestamp verification for production period.

Methodology Notes

• The CCI score represents cradle-to-gate emissions for a standard residential wall mirror measuring approximately 60cm x 90cm with typical thickness.

• Scope 3 emissions dominate the footprint due to energy-intensive glass melting processes requiring temperatures of 1,500°C and upstream raw material extraction impacts.

• The functional unit assumes a single wall mirror suitable for residential bathroom or bedroom installation with standard aluminum backing.

• End-of-life recycling challenges are noted but not included in the cradle-to-gate boundary due to coating separation difficulties.

• Data gaps exist for regional variations in raw material sourcing and specific coating technology efficiency improvements across different manufacturers.