The UltraPerm Max 155gsm Roof & Wall Breather Membrane is a high-performing, all-weather underlay designed for both roof and wall applications. Manufactured with advanced technology, it provides exceptional water resistance and breathability, ensuring a dry and comfortable environment within your property. This durable membrane is available in all sizes to cater to different construction requirements. Its easy to install, making it a perfect choice for DIY enthusiasts and professional builders looking for reliable roofing solutions.