Changes to Approved Document F: What Does It Mean for Trickle Vents?
What Are the Changes to Approved Document F? As of June 15, 2022 in England and November 23, 2022 in Wales, replacement double glazed windows and doors must be installed with trickle vents as per the changes to Approved Document F. What Is a Trickle Vent? A trickle vent also known as a slot vent…