The 1000mm X 25m Building Paper A1F is a high-quality construction material designed to provide superior protection and reinforcement in various building applications. This product is crafted from robust, durable materials and offers impressive resistance to water and air infiltration, ensuring optimal performance in any weather condition. Its large area coverage coupled with easy usability makes it a go-to choice among builders and DIY enthusiasts alike. Be it for roofing or wall applications, the Building Paper A1F guarantees solid structural integrity for your projects.