Credit: Oliver Wright

Helibar repair. An excellent example of how not to do this type of work.

Glass tell-tale.

Slime mould. Enteridium lycoperdon (“false puffball”).

Unvented tumble dryer.

Salts test. This was testing for chlorides and nitrates.

Mathematical tiles. Side on view. The tiles are quite new and were fixed directly onto plywood sheathing.

Damaged fire stopping at floor level. This was removed to facilitate the installation of a concrete pad stone.

Poor quality brickwork. The strength and durability of this wall is uncertain.

Mathematical tiles. Some have rotated and some are cracked.

Mathematical tiles. These have an unusual glazed finish and were sized to look like brick headers.