China adds 1.7–1.8 billion square meters of new building floor space every year — more than the combined total of all developed countries — and poor wall insulation performance is a direct contributor to the more than 27% of national energy consumption that buildings account for. For architects, developers, and building envelope contractors, the material choice made on the wall assembly has real, compounding consequences: on energy bills, on fire safety compliance, and on how much of the building footprint actually becomes usable floor space.
Most building insulation on the market falls into two categories, and both come with a real trade-off. Organic materials — polystyrene board, extruded board, polyurethane — are lightweight and cheap, but their poor flame retardancy is a genuine building safety liability. Inorganic materials like rock wool avoid the fire risk, but their poor hydrophobic performance means they absorb moisture over time, lose insulating value, and can develop mold issues inside wall cavities. Buyers are often forced to choose between fire safety and long-term thermal performance — aerogel insulation is one of the only materials on the market that doesn't require that trade-off.
Class A fire rating: Fully inorganic material, safe for high-density residential and commercial construction where fire code compliance is non-negotiable.
Ultra-low thermal conductivity: As low as 0.016 W/(m·K) — effectively isolates cold and hot bridges at a fraction of the thickness required by EPS, XPS, or mineral wool.
Reclaims usable floor space: Because aerogel insulation layers can be installed as thin as a few millimeters instead of the tens of millimeters conventional materials need, the same exterior wall thickness yields more usable interior floor area — a real, calculable economic benefit for developers on a per-square-meter sellable area basis, not just an energy-savings talking point.
Overall hydrophobicity with stable structure: Resists the moisture absorption that causes rock wool and mineral wool to settle, compress, and lose performance over the building's lifetime.
Sound insulation: Improves acoustic comfort as a secondary benefit of the dense, stable aerogel structure.
Environmentally friendly and non-toxic: No harmful off-gassing during installation or over the life of the building.
Service life matched to the building: Inorganic and structurally stable, with a service life comparable to the building itself — not a material that needs replacement mid-lifecycle.
Easy to construct and cut: Standard tools, no specialized equipment required for on-site fabrication.
Aerogel insulation applies across the building envelope — exterior wall systems, interior wall retrofits where preserving room space matters most, roof and floor assemblies, and thermal bridge points at structural connections where even well-insulated walls commonly leak heat.
NANO TECH has manufactured silica aerogel and its composites since 2004, holding 28 invention patents and 6 utility model patents, and contributing directly to China's National Standard for Reinforced Nanoporous Aerogel Products for Thermal Insulation. Production runs through a 32,000㎡ facility in Shaoxing, Zhejiang with an annual output of 8 million square meters of aerogel. For building material buyers and OEM partners, this means factory-direct access to aerogel insulation at production scale, with full customization on thickness and format to match your project's wall assembly.
For full technical specifications of our aerogel sheet used in building construction — including thickness range, thermal conductivity, and compressive strength — see our NANO Aerogel Sheet product page.
How much thinner is aerogel insulation for building walls compared to EPS or rock wool? Aerogel typically achieves equivalent or better thermal performance at a fraction of the thickness of conventional materials, though the exact ratio depends on your target thermal resistance and climate zone — our team can calculate a project-specific comparison.
Is aerogel insulation suitable for high-rise or high-density residential buildings? Yes. Its Class A, fully inorganic fire rating makes it well suited to high-density construction where fire code compliance is a primary design constraint, unlike organic foam insulations.
Can aerogel insulation be used for both new construction and retrofit projects? Yes. Its thin profile makes it particularly effective for interior retrofit applications where preserving existing room dimensions matters, as well as new-build exterior wall systems.
Do you offer custom thickness and sizes for building projects? Yes, we offer bulk orders and custom thickness, width, and length to match specific wall assembly and project requirements.
Specifying insulation for a building project? Share your wall assembly requirements and target thermal performance with our team for a free material recommendation and quote.
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