Are insulated wall panels environmentally friendly?

Dimensions

EPS

PU（polyurethane）

Rock wool

Raw material and use release

New materials are non-toxic and formaldehyde-free; inferior recycled materials may release VOCs.

No release of high-quality products; TDI or harmful flame retardants are residual in low-quality products.

No chemical release, but may produce dust irritating respiratory tract.

Production and energy consumption

Energy consumption is moderate, and VOCs pollution may occur in the treatment of recycled materials.

Higher energy consumption, more environmentally friendly MDI process

High energy consumption (ore melting needs high temperature), need to control dust

Energy saving and carbon reduction

Thermal insulation medium (thermal conductivity 0.033-0.038W/(m · K))

Optimal thermal insulation (thermal conductivity ≤ 0.024W/(m · K)), energy saving and carbon reduction is the strongest

Weak insulation (thermal conductivity 0.040-0.048W/(m · K))

Combustion and Safety

Flammable, flame retardant may release toxic fumes

Flammable, high quality flame retardant smoke toxicity is low

Non-combustible (Class A1), no toxic smoke

Waste disposal

Refractory degradation, low recycling rate

Difficult to degrade, difficult to recycle

Natural degradation, landfill without chemical pollution