Protect your structure with Fletcher Permastop Building Blanket Insulation Heavy Duty Foil, a premium solution specifically engineered for metal roof applications. By combining high-quality glasswool insulation with a Heavy Duty Sisalation® reflective foil facing, Permastop acts as a robust barrier against condensation, preventing moisture from forming on the underside of your roof sheets.

This building blanket provides exceptional thermal resistance, drastically reducing energy usage and delivering long-term cost savings. Beyond temperature control, its high-density glasswool composition offers excellent acoustic properties, effectively dampening rain noise and external sounds for a quieter internal environment.

Safety and Compliance:

• Bushfire Rated: Satisfies BAL requirements of 0-40 in roof applications and 0-FZ in wall applications (AS 3959-2009).

• Eco-Friendly: Manufactured from up to 80% recycled content and is FBS-1 Bio-Soluble, making it safe to use and handle.

• Certified Quality: Fully CodeMark™ certified and proudly Australian-made.

Available in various thicknesses and customizable lengths, the Heavy Duty Permastop blanket is designed to improve installation speed and reduce waste on-site. Whether for residential or large-scale commercial projects, it delivers a high-performance finish that lasts.