Document F and Trickle Vents
Recent changes to Approved Document F – Background Ventilation, now require the majority of replacement windows and doors to be fitted with trickle vents as standard.
Recent changes to Approved Document F – Background Ventilation, now require the majority of replacement windows and doors to be fitted with trickle vents as standard.
14 windows for this Wiltshire cottage. Flush Fit French Grey external, white internal; grained both in & out, with Georgian bars on the front windows.