Evissa’s Structural Insulated Panel System (SIPs) is a prefabricated building solution that combines structural strength with high thermal performance, making it suitable for walls, roofs, and floors in both residential and light commercial projects. Each panel consists of a graphite-enhanced polystyrene core bonded to structural OSB facings, creating an airtight, durable envelope that minimises thermal bridging and delivers energy efficiency far superior to traditional timber-frame construction. Manufactured to precise specifications, the panels allow for rapid on-site assembly with minimal waste, reducing both build time and environmental impact.
Designed with longevity in mind, Evissa SIPs are up to seven times stronger and around 50 percent more energy efficient than conventional systems, with a lifespan that can exceed 50 years. When paired with Passivhaus principles and mechanical ventilation, the airtight construction supports healthy indoor air quality, consistent comfort, and significantly reduced energy bills. By integrating sustainable materials, prefabrication, and optimised performance, Evissa SIPs provide a low-carbon alternative that enhances durability, occupant well-being, and long-term resilience.
