2440mm Manthorpe uPVC 10mm Continuous Soffit Ventilator G800 – White

The G800 is a trade-standard continuous soffit ventilator engineered to provide an effective, permanent roof ventilation solution where a traditional flat soffit board is specified. Manufactured in the UK by Manthorpe via high-precision extrusion, this robust white uPVC profile features an adjustable self-retaining mouth designed to fit board thicknesses ranging from 4mm up to 12mm. The ventilation path delivers a high-capacity continuous airflow of 10,000mm² per metre, successfully meeting the strict requirements of UK Building Regulations and British Standards for modern roof void installations.

Designed for optimal balance and structural longevity, the airflow passage consists of precisely sized, evenly spaced slots. These grill openings are narrow enough to permanently prohibit large nesting insects from gaining access to the roof space, yet wide enough to actively resist blockages from airborne debris, paint buildup, or water droplets. Extruded from premium, impact-resistant uPVC, the G800 will not corrode, rot, or warp over time, providing a completely weather-resistant finish that eliminates ongoing upkeep and maintains stable support along the entire length of the soffit board.

Key Features

10,000mm²/M Free Airflow: Delivers a high-volume continuous airway equivalent to a 10mm gap to eliminate roof space condensation.

Adjustable Retention Mouth: Highly versatile profile design that easily adapts to securely fit soffit boards from 4mm to 12mm thick.

Anti-Blockage Vent Slots: Slots are specifically sized to resist blockages from wet paint, general garden debris, and water droplets.

Integral Pest Defence: Precision-spaced slots block large insects and nesting birds from penetrating the structural roofline cavity.

Pre-Drilled Fixing Rails: Features built-in mechanical fixing points at 150mm centres for rapid, uniform installation along the fascia line

Please Note: On-screen colours are for illustration purposes only. Due to variations in digital displays, screen settings, and lighting, actual product colours may vary slightly. We recommend ordering a sample or visiting a branch to view physical colour swatches prior to installation.

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