- 2 Jun 2021
- Reaction score
The paving on a rear extension comes above the lower level of airbrick which I think is 2 bricks in depth(see photo). I would like to ensure best possible airflow through to old section of house so keen to lower . What’s a good way to deal with this as concerned cutting a section out could lead to water running in to air brick more easily. Two air bricks in total across the rear extension.