Mineral Wool Insulation (per sqm)

Material Composition Assumptions

Mineral wool insulation consists primarily of natural rock materials and industrial byproducts processed into fibrous thermal insulation. The composition includes basalt rock forming approximately 45% of the raw material weight, dolomite stone contributing around 30%, and industrial slag from steel production making up roughly 20% of the mineral content. Phenol-formaldehyde or MDI-based mineral binders constitute about 3-5% of the total weight to provide structural integrity to the fiber matrix. Some manufacturers incorporate recycled mineral wool content up to 10% in newer formulations to reduce virgin material consumption.

For a standard one square meter section with typical residential thickness, the total product weight ranges from 8-15 kilograms depending on density specifications and intended application performance requirements.

Manufacturing Geography

European Union facilities represent the primary manufacturing region for mineral wool insulation due to abundant natural rock quarries, established steel industries providing slag byproducts, and mature insulation market demand. The region benefits from relatively clean electricity grids averaging 275 gCO2/kWh, which significantly reduces emissions from the energy-intensive melting processes required to transform raw materials into mineral fibers.

Manufacturing concentration in Europe also stems from proximity to major construction markets, well-developed transportation infrastructure for heavy raw materials, and stringent environmental regulations that have driven efficiency improvements in production technologies over recent decades.

Regional Variation

Manufacturing Region	Grid Intensity	Estimated CCI Score	Adjustment vs Default
European Union	275 gCO2/kWh	42	Baseline
North America	385 gCO2/kWh	48	+14%
China	555 gCO2/kWh	58	+38%
Nordic Countries	145 gCO2/kWh	35	-17%
Australia	425 gCO2/kWh	51	+21%

Provenance Override Guidance

1. Facility-specific electricity consumption data measured in kWh per cubic meter of finished product, including furnace operations, fiber formation, and curing processes.

2. Raw material sourcing documentation specifying quarry locations, transportation distances, and percentage of recycled slag content versus virgin rock materials.

3. Energy source verification showing renewable electricity percentage, on-site generation capacity, and grid connection specifications for the manufacturing facility.

4. Production efficiency metrics including yield rates, waste material percentages, and energy recovery systems implemented during the melting and fiber formation stages.

5. Transportation logistics data covering inbound raw material shipping distances, outbound distribution patterns, and packaging material specifications used for product delivery.

Methodology Notes

• The CCI score represents cradle-to-gate emissions for one square meter of mineral wool insulation at standard residential thickness with thermal performance equivalent to R-1 m²K/W functional unit.
• Scope 3 dominance reflects the energy-intensive nature of melting rock materials at temperatures exceeding 1400°C, with manufacturing processes contributing the majority of lifecycle emissions.
• Regional variations primarily stem from electricity grid carbon intensity differences affecting furnace operations rather than raw material availability or transportation distances.
• The assessment excludes installation labor, end-of-life disposal scenarios, and building-specific thermal performance benefits during operational phases.
• Data gaps exist for emerging bio-based binder alternatives and advanced recycling technologies that may reduce future embodied carbon values.