Ensure your roof space has effective ventilation when working with Britmet's Ultratile system with the addition of this clean-lined, discreet air vent tile.This dry-fix, British-made accessory is coated in the same robust granulated finish as the Ultratile range and a host of pipes and adaptors are available to assist with a reliable, effective installation whether you're working with the 0.9mm or 0.45mm tile ranges.Extract cold air from extractor fans and guarantee optimum roof-space ventilation with this purpose-designed extra from Britmet.