Gravimetric Testing & Salt Analysis

Gravimetric Testing and Salt Analysis for Damp in Cornwall’s Heritage Buildings

At Truscott Building Preservation, we utilise advanced diagnostic techniques such as gravimetric testing and salt analysis to accurately assess and diagnose damp issues in Cornwall’s heritage buildings. These methods are particularly effective in evidencing moisture ingress, differentiating between types of moisture, and determining the root causes of damp.

Gravimetric testing measures the moisture content within building materials, providing detailed data on the extent of dampness in a structure. This is essential for understanding whether the moisture present is free moisture (which is simply absorbed and can be removed through ventilation or drying) or hygroscopic moisture, which is absorbed by salts within the masonry and requires more specific remediation.

Salt analysis plays a crucial role in determining the type of salts present in the building fabric. Different salts, such as sodium chloride or calcium sulphate, are indicators of different moisture sources. Knowing the salt type is vital for identifying whether the damp is caused by rising damp, condensation, or external moisture ingress. According to BS 6576—the British Standard for diagnosing rising damp—salt analysis provides valuable insight into the moisture’s source, guiding the appropriate treatment approach.

These precise diagnostic tools allow us to offer evidence-based solutions for damp issues, ensuring that interventions are both effective and appropriate for the unique construction of your heritage building.

If you’re struggling with damp or suspect moisture ingress in your beautifully old building, call 01326 459202 to arrange a thorough survey. Let us help you understand the source of the problem and protect your property with scientifically-backed, heritage-sensitive solutions.