HV15x15 is a classic high multifunctional vent for both natural and mechanical ventilation for kitchen, bath and utility room. High capcity combined with low pressure loss makes it suitable for heat recovery systems. The multifunctionality allows for choosing the same vent for several purposes on the roof. The baseplate is manufactured separately to make it match 100% to each specific roof profile. A feature that makes i easier for the roofer to install the vent together with the rest of the roof and ensure a secure installation. The cover is designed to be in line with the roof surface at all times which minimizes the risk of return wind and noice. Warm humid air will condensate when cooled down on its way out through an uninsulated pipe. Therefore HV15x15 is supplied with an integrated pipe insulating the vent to the top for efficient outlet of humid air, and with an adapter Ø160 mm, for connecting pipes.