(1930's brick built house) I'm putting DIY PVCu Casement Window in a kitchen / diner (where previously the back door was).
The kitchen part of the diner is ventilated with an open grille extractor fan.
Do I need to fit a trickle vent to the window frame?
Thanks in anticipation
The kitchen part of the diner is ventilated with an open grille extractor fan.
Do I need to fit a trickle vent to the window frame?
Thanks in anticipation