Fuzhou Villa Exterior Renovation: 4-Layer AG-C Aerogel System Achieves A2 Fire Rating and 10-Year Service Life on 240sqm Aging Walls

This villa exterior renovation project in Fuzhou targets 240 square meters of aging exterior walls with zero existing insulation, applying a four-layer AG-C aerogel coating system to deliver simultaneous thermal insulation, weatherproof protection, and aesthetic upgrading across the complete building envelope.The aging exterior walls presented multiple performance deficiencies requiring integrated solutions. Zero insulation allowed direct solar heat gain through wall surfaces during Fuzhou's hot summers. Existing finishes showed weathering deterioration requiring full replacement. The renovation needed to address thermal, weatherproof, fire safety, and aesthetic requirements within a single application system without adding significant wall thickness that would affect the villa's architectural proportions.The four-layer AG-C aerogel system achieves all requirements within a 2.0mm total thickness. The ultra-thin profile blocks high exterior temperatures, resists surface temperatures up to 70°C caused by direct sunlight without peeling or delamination, and withstands typhoon-force wind and rain erosion characteristic of Fuzhou's coastal climate. The system achieves A2 building fire safety rating, meeting China's requirements for exterior cladding fire performance on residential buildings. The zero-VOC eco-friendly formula ensures occupant safety and environmental compliance. The projected service life of 10 years significantly exceeds conventional exterior coating systems.As the first villa aerogel coating project in the local Fuzhou market, this installation has established a benchmark for residential exterior renovation, generating surrounding market demand and demonstrating aerogel coating's viability as a premium renovation solution for high-end residential properties.