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Ways of Damp Proofing Internal Walls

CEO Khai Intela
In this article, we will explore various ways of damp proofing internal walls and discuss the common causes for dampness in properties. Dealing with damp internal walls is essential to maintain a healthy and comfortable...

damp proofing internal walls

In this article, we will explore various ways of damp proofing internal walls and discuss the common causes for dampness in properties. Dealing with damp internal walls is essential to maintain a healthy and comfortable living space. Let's delve into the solutions available to tackle this problem effectively.

Exploring Condensation Damp

Condensation damp is one of the most prevalent forms of dampness in homes. It occurs due to everyday activities like cooking, washing, and indoor clothes drying. When excess water vapor settles on cold surfaces such as walls and windows, condensation takes place. Recognizing the symptoms, such as steamed-up windows, damp walls, peeling wallpaper, and black mold spots, is crucial.

Thankfully, condensation damp can be addressed easily and cost-effectively. Improving ventilation by opening windows and installing extractor fans in the kitchen and bathroom can make a significant difference. Additionally, maintaining a consistent low heat setting, avoiding sudden temperature changes, using lids on pans while cooking, and not drying wet clothes on radiators all contribute to reducing moisture levels in the home.

Damp proof paint and anti-mould paint are affordable and effective solutions, particularly for properties where condensation is a recurring issue. These paints not only cover up damp patches and mold but also prevent their recurrence. However, it's important to identify and rectify the root cause of dampness before using damp proof paint. While it may offer temporary respite for condensation damp, it may not be effective against other types of damp, such as penetrating damp or rising damp.

Dealing with Penetrating Damp

Penetrating damp occurs when water infiltrates from the outside. Common causes include roofing and masonry defects, damaged or blocked guttering and pipes, and gaps around windows and doors. Before addressing the dampness internally, it is crucial to rectify the underlying external issues.

One possible solution for penetrating damp is cavity work. Modern homes have a cavity between the exterior and interior walls, allowing moisture to evaporate. However, gaps around doors and windows require the installation of cavity trays to prevent dampness. Clearing blocked cavities costs around £130 per affected area, while the installation of a new cavity tray may cost approximately £250.

Remember, when it comes to damp proofing internal walls, addressing external issues is vital. Once the external causes of penetrating damp are resolved, consider using damp proof paint like Johnstones as an additional layer of protection.

Addressing Rising Damp

Though less common, rising damp can be a challenging and expensive problem to tackle. It typically occurs when there is a defective or missing damp proof course. In such cases, installing a new damp proof course becomes necessary, with costs starting from £400 per wall. Alternatively, injected silicone damp proofing treatment may be required, costing around £700. However, affordable DIY kits are also available for those who prefer a cost-effective solution.

Another option for rising damp is tanking, which involves creating a barrier using a damp proof material to prevent water ingress. However, it is a more expensive option, with costs exceeding £3000 for a 3×3 metre room, including wall repairs and redecoration. An affordable alternative is using a damp proof membrane. DIY kits to cover 20m² can be purchased for as little as £150. Damp proof plaster is also effective, particularly in older properties, and helps combat condensation and mold growth.

Remember, it is crucial to address the underlying cause of dampness before choosing a method of damp proofing internal walls. The extent of the damp and the resulting damage to the property will determine the most suitable solution.

damp proofing

Caption: Damp proofing internal walls is essential for a healthy home environment.

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