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The rafter scales are laid out mathematically to take away the time consuming calculations
By allowing airflow through the roof structure
The textured surface helps maintain the aesthetic of the roof while delivering effective ventilation performance
Manrose Intervent NVF100S
Kartell K-Rad Straight Modern Radiator Valve 15mm – Matte Black – 4 Pack Roofing The rafter scales are laidThe Kartell K Rad Straight Radiator Valves are designed as a clean, modern finishing detail for heating installations where pipework exits directly from the wall. Manufactured by Kartell UK, they combine practical compatibility with a refined appearance, making them suitable for both radiators and heated towel rails. The straight valve configuration allows the pipe to connect directly into the radiator or towel rail without a bend, creating a neat and