leak Archives - Surveyor Tips

104Z: White rot following suspect mains leak

White rot. Measure the sub-floor relative humidity. Measure the pressure on the mains-water using a pressure tested.

Leak below rear extension and hygroscopic salts on removed chimney breast. Look to neighbours side and above.

Owners questioned damp proofer’s during work. If there is no rising damp, then plaster should not be replaced. Deal with root causes.

Historic Dry rot, probably caused by a leak, later fixed, but was almost certainly misdiagnosed and mistreated as rising damp.

An old leak and evidence of penetrating damp from gutters. Signs of condensation such as from an unheated unvented utility room.

Leak testing should form part survey, if there is unexplained damp on inside walls that does not look like hygroscopic salts.

Toilet cistern leak and condensation from drying clothes in unvented room.

Leak from heating system made worse by condensation, with a risk of penetrating damp. Leaks on solid floors can spread out.

Damp proofed twice but root cause was a leak causing rot and extensive damage across whole ground floor. Solution is easy repair leaking pipe.

Peace of mind surveys are some of the most interesting and appreciated. Here show a simple mains water leak test that every survey should use.