Salt Damp: A Guide

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This article explores the cause of salt damp and the impact it can have on a property. Read on to find out more.

Salt damp in buildings

Salt is highly soluble in water. When groundwater mixes with salt, it can penetrate deep inside the structure of a building. The leading cause of salt damp is a damaged damp-proof course. A damp-proof course that has been compromised will allow salty water and moisture to enter the walls of your property. This more often than not takes the form of rising damp.

The signs of salt damp

Excess moisture

The first sign of a problem with salt damp is usually an oncoming excess of moisture or humidity. This is caused by moisture bleeding through the walls and other surfaces into the atmosphere of your home. It's important to discover the source of the problem before damage occurs so that you can take action to stop it. By checking for damp patches and finding the source of the problem early, you may be able to prevent serious damage from occurring.


Mould will thrive in the damp conditions caused by salt damp and will gradually spread out across your walls, ceilings, floors and doors to cause more damage. The effect of mould on wallpaper is not very noticeable, but if the damp damage is extensive, this will also have an effect on your property value, especially with older wallpaper or wallpaper made from materials that have deteriorated. It's a good idea to check for wet patches behind furniture so that you can see what has happened when you have a professional inspect your property.


As structures within your home become saturated with saltwater, you may notice that they begin to rot. Before you see any visual signs of this, you will probably smell the musty scent of decay. As things progress, you may see paint, brick and wooden surfaces begin to crack and chip away.

Salt damp inspections

A salt damp inspection can help you to identify the source of the dampness. However, it's also important to take preventative action. A contractor can install a new layer of damp proofing to help to protect your walls and keep moisture out. They can also take action to dry out and repair damaged structures within your property.

If you would like more info, contact a local damage contractor today. They will be happy to help.