| They hollowed out the mortar from an airbrick in their cell and planned to tunnel their way out. |
| Fitting an airbrick in stonework Airbricks allow ventilation of the space below the ground floor of a house. |
| They answer distress calls from frightened residents whose houses have become home to a family of wasps, usually in an airbrick or the eaves of the roof. |
| Provide ventilation by inserting an airbrick into an outside wall or by fitting a window vent. |
| If it's really bad it might be worth considering fitting an extractor fan in that room to suck the moisture out, or an airbrick for permanent ventilation. |
| Also check that all your airbrick vents are clear and above ground, as blocked air vents prevents ventilation and causes dampness under the house. |
