We have around six air bricks around the house, from the days when more ventilation was needed. It a semi, built 1950's, on a concrete raft, with a cavity and CWI. Then it had two coal fires and a kitchen range for heating, all of which were also replaced with CH. All were blocked up on the inner leaf, during a refurb in the mid 1980's, since when I have added more structured ventilation.
All of the vents were ceramic type, 3x course high by 1x brick wide, so square.
The kitchen air brick, at the back of the house suffered some damage or someone knocked a way through for a pipe or something (water heater flue?), before my time - which has been cemented to block the hole around 3"x 3". From memory, the gap through the cavity was filled with a timber box/ duct.
Like any good DIY'er, I have a small stock of matching bricks and roof tiles. I'm wondering whether to chop the damaged vent out completely and replace it with three bricks?
All of the vents were ceramic type, 3x course high by 1x brick wide, so square.
The kitchen air brick, at the back of the house suffered some damage or someone knocked a way through for a pipe or something (water heater flue?), before my time - which has been cemented to block the hole around 3"x 3". From memory, the gap through the cavity was filled with a timber box/ duct.
Like any good DIY'er, I have a small stock of matching bricks and roof tiles. I'm wondering whether to chop the damaged vent out completely and replace it with three bricks?