Independent Damp Surveys

Tony Jackson BSc (Hons) MRICS often employs methods like ground salt analysis, deep probe testing, and calcium carbide ('Speedy') testing during a dampness inspection to establish whether dampness is present within the wall structure. These techniques can effectively differentiate between lateral penetrating dampness and rising dampness, which often occurs due to issues such as a bridged damp proof course.

In cases where there is no dampness within the wall structure, the root cause of mould growth is frequently surface condensation. Plasters that have not been contaminated with hygroscopic salts from the ground or combustion products in chimney breasts generally do not require renewal and can often dry out once the source of moisture is addressed.

Condensation dampness, which frequently leads to mould growth, is assessed using thermal imaging, psychometric readings, and surface temperature testing. 

Upon request, suggestions can be provided for addressing mould growth after confirming that rising or penetrating dampness is not present within the wall structure. This confirmation can be achieved through a combination of ground salt analysis, deep probe testing, and/or calcium carbide testing of drilled samples. 

Remedies for mould growth related to condensation dampness include treatment and redecoration with fungicidal or anti-condensation paint, increasing surface temperatures by improving heating or insulation, boosting ventilation either locally in bathrooms and kitchens or by increasing the air change rate of the entire property.