Phenolic Cavity Closers

Phenolic cavity closers are specialised building components designed to provide an effective seal at the junctions of cavity walls, typically around window and door openings. Manufactured from high-performance phenolic foam, these closers offer excellent thermal insulation properties, helping to reduce heat loss and improve the overall energy efficiency of a building. Phenolic cavity closers are lightweight yet robust, resistant to moisture, and possess a high compressive strength, ensuring long-lasting durability and structural integrity. They are designed to prevent the ingress of moisture, air, and cold bridging, thereby enhancing the building’s thermal envelope and contributing to compliance with building regulations. These closers are easy to install and can be cut to size on site, making them a versatile solution for a wide range of construction projects. Their superior insulation performance and resistance to fire make phenolic cavity closers a preferred choice for modern, energy-efficient buildings.

Key Characteristics

• Excellent thermal insulation properties, significantly reducing heat loss
• Manufactured from high-performance phenolic foam
• Lightweight yet strong and durable with high compressive strength
• Resistant to moisture, preventing damp ingress
• Effective at eliminating cold bridging around openings
• Enhances airtightness and overall energy efficiency of buildings
• Fire-resistant, contributing to building safety
• Easy to cut and install on site for versatile application
• Compliant with current building regulations and standards
• Long-lasting performance with minimal maintenance required