Introducing the Proctor 170gsm Air & Vapour Permeable Roofing Underlay, a cutting-edge solution for modern roofing needs. This high-performance underlay ensures your roof breathes efficiently while remaining highly water-resistant, making it perfect for complex pitched roofs.

Its innovative meltblown core facilitates natural air movement, efficiently transferring moisture vapour out of your roof space and virtually eliminating condensation. Unlike traditional methods, this underlay allows for more uniform airflow without requiring air gaps or secondary venting. The product is wind uplift resistant complying with BS5534, making it both robust and reliable. Additionally, it is fully compatible with solar PV assemblies and comes with a BBA Certificate, ensuring guaranteed performance with a 15-year warranty.

• Size: 1m x 50m roll
• 170gsm
• Water resistant and vapour permeable
• Allows roofs to breathe without air gaps
• Prevents condensation in roofspace
• Suitable for use with solar PV systems
• No vapour control layer required
• 15-year warranty included