Hi, I’m building a garden music practice room and have a question regarding ventilation, my space will be about 10 ft x 11 ft in size and about 7 ft ceiling height, I will be having a 4 ft wide French door and around a 2 ft x 1 ft wide window, both will be double glazed units, the room will come under permitted devolpmet but will be build as close to building regulations as possible to provide a stable environment for a piano etc…,
How much ventilation will this size room require? Would adding trickle vents to both the French door and the window be enough? Or should I add an extra wall vent or a powerd vent?
Thanks for any info given.