The HV15x15 is a classic, highly versatile vent designed for both natural and mechanical ventilation in kitchens, bathrooms, and utility rooms. Its high capacity, combined with low pressure loss, makes it ideal for heat recovery systems. Its multifunctionality allows the same vent to be used for multiple purposes on the roof. The baseplate is manufactured separately to ensure a 100% match with each specific roof profile. This feature makes it easier for the roofer to install the vent alongside the rest of the roof and ensures a secure installation. The cover is designed to remain flush with the roof surface at all times, which minimizes the risk of backdraft and noise. Warm, humid air will condense when cooled on its way out through an uninsulated pipe. Therefore, the HV15x15 is supplied with an integrated pipe that insulates the vent to the top for efficient exhaust of humid air, and with a Ø160 mm adapter for connecting pipes.