Purpose‑made for Marley Bold Roll coverings, this tile vent introduces generous roof space ventilation while preserving the look of the field. The face mirrors the tile geometry so lines stay coherent, and the internal passage provides a wide free area that moves air decisively. A cap discourages debris and pests, supporting consistent performance across seasons. Installation is familiar: swap the tile, seat the vent and connect if required. Use it to reduce condensation risk, protect timbers and keep insulation working at its rated performance, particularly where breathable membranes are absent or additional airflow is desirable. The Bold Roll tile vent makes the roof function better without changing how it looks.