FAQ on rising damp

All your rising damp questions answered

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Rising damp questions and answers

Below are some of the most commonly asked questions regarding our Wise property survey. Click to reveal the answers.

Q1: What causes rising damp in buildings?

Q2: How to prevent rising damp?

Q3: How can rising damp be cured?

Q4: What does rising damp look like?

Q5: What causes rising damp in internal walls?

Q6: How can I identify rising damp in my property?

Q7: How high can rising damp go?

Q8: How to fix rising damp in walls?

Q9: Is rising damp a problem?

Q10: Rising damp health problems – Should I be worried?

Q11: Why does rising damp occur?

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Q1: What causes rising damp in buildings?

Rising damp is a result of ground water breaching your damp proofing course and rising up through the buildings bricks and mortar. This is known as capillary action.

Signs of rising damp

Q2: How to prevent rising damp?

By ensuring you have a fully operational damp proofing course in place. Older buildings can suffer from failed a damp proofing course which means it may need replacing.

How to treat rising damp

Q3: How can rising damp be cured?

There are four Property Care Association (PCA) approved methods for the treatment of rising damp – chemical damp proof treatment, injection mortar/creams, electro osmotic treatment or the installation of a membrane. You can read more about these within the link.

Rising damp treatment & solutions

Q4: What does rising damp look like?

Tide marks on the walls (up to a metre from the ground), peeling wallpaper & decaying skirting boards. Learn more by clicking on the link below.

Tell tale signs of rising damp

Q5: What causes rising damp in internal walls?

Rising damp is ground water working its way horizontally up through a properties brick work. The two most common causes of rising damp is either the current damp proofing course has failed (perhaps you didn’t have one) or the ground around the walls of the house have risen. Failed damp proofing is more common in older buildings.

Learn about rising damp

Q6: How can I identify rising damp in my property?

The most obvious sign is tide marks on the walls. Due to the force of gravity, these rising damp tide marks will typically only rise about a metre high from the skirting boards. You can learn more about the tell tale rising damp signs by clicking on the following link.

How to spot rising damp

Q7: How high can rising damp go?

Gravity usually prevents Rising Damp from climbing more than a metre from the skirting boards.

Q8: How to fix rising damp in walls?

There are four PCA approved methods four effective treatments for rising damp: chemical damp proof treatment, Injection Mortar/Creams or Electro Osmotic Treatment.

Rising damp treatment & solutions

Q9: Is rising damp a problem?

Yes. Any form of damp in your property can lead to a more serious problem. For instance, rising damp can dampen the timber structure of your building, creating the perfect environment for a dry rot infestation.

PCA explains rising damp

Q10: Rising damp health problems – Should I be worried?

For most people you do not need to be concerned. It might smell and look unsightly, however, the health risks are minimal. However, if the rising damp is extreme, it may lead to excessive amounts of black mould which may cause an allergic reaction, especially children, elderly people and those that have poor health. It can also cause issues for people who suffer from asthma. For more information on the health risks, refer to our governing body, The Property Care Association, using the link below.

Property Care Association on black mould health risks

Q11: Why does rising damp occur?

Almost all homes are surrounded by natural moisture that is trying to penetrate its way through the building. If the damp proofing course has failed, then rising damp may occur.

How rising damp occurs

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Further information about rising damp

How to spot rising damp

Spotting rising damp early can minimise the damage it causes. Click to learn more about the tell tale signs.

Rising damp tell tale signs

Rising damp treatment

Want to learn more on how to treat rising damp? Check out our guide on rising damp treatments and solutions.

Rising damp solutions

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