Use the Undercloak Strip beneath roof battens to support verge mortar. Fit it along exposed edges to improve stability and weather protection. The board also suits soffit and eaves applications where a strong, moisture‑resistant material is needed. It performs reliably in all UK weather conditions and supports a long‑lasting roof finish.

This Undercloak Strip offers strength, safety, and dependable performance in a lightweight profile. It remains a trusted choice for installers seeking a clean and durable verge detail.

Key Features

• Strong fibre cement construction for long‑term durability.
• Autoclaved for increased stability in changing weather.
• A1 fire rating for improved safety on all building types.
• Consistent thickness for a smooth and even mortar bed.
• Resistant to moisture, impact, and fungal decay.
• Lightweight design for easy handling and installation.
• Suitable for verges, soffit lining, and eaves detailing.
• 100% asbestos‑free and compliant with modern standards.

Benefits

• Creates a secure base for mortar along roof verges.
• Prevents movement and distortion in exposed areas.
• Supports tiles and slates where traditional bedding is required.
• Works on both refurbishment and new roofing projects.
• Provides a clean, neat finish that improves roof appearance.
• Reduces maintenance by resisting weather‑related damage.
• Installs quickly with simple fixing methods.

Specifications

• Length: 1200 mm
• Width: 150 mm
• Thickness: 4.5 mm
• Material: Fibre cement
• Finish: Light grey
• Fire Rating: A1
• Weight: Approximately 1.09 kg per strip