Penetrating Damp: Causes, Signs and Treatment

If you’re a homeowner, chances are that you’ve been subjected to penetrating damp on interior walls at some stage in your life. If not, consider yourself lucky!

Penetrating damp also known as lateral damp is the horizontal intrusion of moisture through walls. It can happen as a result of structural issues such as damaged roofing or gutters as well as cracks in external walls. This type of damp can happen at any level thus affect walls, roofs, and ceilings. Below are some of the common causes of penetrating damp according to the professionals.

Leaking Walls

Wet walls are typically the first sign of penetrating damp. Damp patches, discolouration, mould growth, flaking plaster are all signs of penetrating damp.


Damage to doors and window frames that allow for air gaps, can lead to penetrating damp. Ensure that you fix damage promptly whenever it occurs to secure an airtight property.

Burst Pipes and Leaky Gutters

Leaks from gutters and downpipes can cause penetrating damp so make sure you identify cracks and fix them to solve the problem.

Permeable Bricks

Bricks that are old can become porous and allow water to enter your home. If you suspect that this is the case, you might need to have them replaced. Another option to consider is to use damp-proof exterior paint to coat your property exterior. This will seal your walls while allowing them to breathe. Before you commence with this treatment option, we advise you to consult with a professional to determine what would work best in your unique situation.

Penetrating damp should be dealt with immediately since it can lead to more serious issues like structural damage and mould growth that can be harmful to human health.

Hydrostop SA is a reputable damp proofing specialist and offers damp proofing in Johannesburg and surrounding areas. Get in touch with the team for a free consultation today!


4 Reasons Why Basement and Foundation Waterproofing Is Important

Home improvements don’t have to be limited to what can be seen. In fact, waterproofing your home’s foundation or basement is something that can make your home more comfortable in the long run. But, it is rarely considered due to its hidden nature.

In this article, we’ll explore some reasons why we suggest foundation and basement waterproofing as a necessity rather than an option.

Waterproofing Reduces the Risk of Flooding

Flooding is an extremely real risk to anyone living in Gauteng. Summertime is notorious for big storms and it only takes one to turn your home into an indoor swimming pool.

Waterproofing reshapes the way your home interacts with water, thus reducing the risk of flooding. When you waterproof your foundation or basement, you are more likely to keep excess amounts of water out of your home.

Waterproofing Keeps Your Basement Dry

While not every home in Johannesburg or Pretoria has a basement, the homes that do will enjoy having a dry one. You can reduce the amount of water that seeps into your home with foundation waterproofing. By creating a waterproof barrier, you can divert the water away from your home.

Waterproofing Lowers Overall Moisture

Moisture in your home can make it feel colder in winter and warmer in summer. It can also cause rust and create an environment for mould growth, ultimately reducing the comfort level of your home. Waterproofing your foundation is the first step in reducing moisture in your home.

Waterproofing Protects Your Home

Let’s face it, your home and water don’t mix unless it’s in a controlled environment. Foundation waterproofing can help to prevent water from entering your home which can lead to structural damage while ruining your possessions.

Waterproofing your basement or foundation is one of the best home improvements you can make. By keeping the interior dry, it ensures that the structure stays intact as well.

To keep your home free from damp and moisture, get in touch with the team at HydroStop SA. Our services include damp proofing and waterproofing Pretoria and Johannesburg, offered at affordable rates. Give us a call today!