2.6.1 Wall structure

2.6.1 Wall structure

2.6.1.1 Ceilings

(a) Isolated patch Appearing during or after rain. The most common source of this type of dampness is defective roof plumbing and flashings.

(b) Isolated patch Appearing all the time. The most common source of this type of dampness is defective plumbing.

(c) Isolated patch or continuous band Appearing during periods of high humidity. The most common source of this type of dampness is condensation.

(d) Streaks Appearing during periods of high humidity. The most common source of this type of dampness is condensation.

2.6.1.2 External walls – upper section

(a) Isolated patch or continuous band Appearing all the time. The most common source of this type of dampness is defective plumbing and flashings.

(b) Isolated patch or continuous band Appearing during or after rain. The most common source of this type of dampness is defective plumbing and flashings.

(c) Streaks Appearing during or after rain. The most common source of this type of dampness is defective plumbing and flashings.

(d) Isolated patch or continuous band Appearing during periods of high humidity. The most common source of this type of dampness is condensation.