These GRSV45R Refurbishment Slate Vents from Manthorpe are designed for seamless retrofitting into roofs adorned with random slates. Perfect for addressing high and low-level ventilation needs, they offer a versatile solution for optimising your roof's airflow. Each vent facili...Read More
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Find out moreThese GRSV45R Refurbishment Slate Vents from Manthorpe are designed for seamless retrofitting into roofs adorned with random slates. Perfect for addressing high and low-level ventilation needs, they offer a versatile solution for optimising your roof's airflow.
Each vent facilitates an impressive 10,000mm² airflow, ensuring a well-ventilated space beneath your roof. Constructed from UV-stabilised polypropylene, these 600mm x 450mm vents are built to withstand the test of time while providing reliable performance. Their hood features a 4mm fly screen. This innovative design prevents blockage from falling debris and effectively bars entry to large insects, maintaining a clear, unobstructed roof space.
You can rest easy knowing that these GRSV45R Vents have undergone rigorous independent wind tunnel testing, meeting stringent standards such as the BS 6367 Deluge test with 225mm/hour rainfall. They further excel in withstanding driving rain on roofs pitched as low as 15°, accompanied by an up-roof wind speed of 13m/s. Additionally, their resilience is showcased with a rainfall rate of 200mm/hour, demonstrating their ability to endure fine penetrative spray.
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