The only option was to pay for a damp proofing company to carry out the work, including expensive replastering.

The chemical damp-proof injection is another major type of DPC, and we mainly use it to restore the water-repellent functionality in the defected areas. What Is Silicone Injection? In the case of any damp plster, replaster to a minimum of 1.2 metres internally. It’s a good idea to also include additives such as salt neutralisers in with the plaster mix as this will prevent ‘salts’ damage to plaster finishes and decorations. Although the specific tools we use for DPC injection can vary depending on the case, some of them remain constant: Injecting a damp proof course when there is a bridging of cavity walls. This will over time fill up with debris and can bridge the damp course, the moisture will pass through and cause damage. The DPC cream that you use will have detailed instructions which you should follow. These should include information about the depth to which the chemical damp proof should be injected, but if not the above guidelines will suffice. What is Needed to Inject a Damp Proof Course Products and Tools RequiredThis usually means that our Timberwise surveyors and technicians have to fix the damp essentially from scratch, which obviously adds to the cost of rectifying the problem. A damp-proof injection is often necessary for older buildings, where the original damp-proof course may have become damaged over time or in areas with high moisture levels or rainfall. How Does A Damp Proof Injection Work? Rising damp can also take place when the DPC installed in your home is lower than the ground level outside, allowing water to seep in above the treatment. What Are the Other Methods of Fixing Rising Damp?

Time-Saving: When compared to other damp proofing methods, this one takes far less time and effort. It mainly entails removing the plaster from the wall and drilling holes. This makes it one of the most time-saving solutions. Overloading the injection holes with too much cream can cause the cream to leak out, reducing the effectiveness of the damp proofing and potentially causing damage to the wall. Ventilate the property: Ensure that your property is well-ventilated, particularly in rooms that are prone to damp, such as the kitchen, bathroom, and laundry. In a nutshell, this process involves cutting through the mortar bed horizontally and inserting the membrane to act as a moisture repellent; it’s quite similar to the shield created by the injection.

How to Install a Damp Proof Course

To Prevent rot in the wood: Damp can cause wood to rot, weakening the structural integrity of a building and making it more susceptible to collapse. This method involves installing a layer of waterproof membrane over the walls of a building and then covering the membrane with a layer of sand or gravel. This creates a tank effect, which helps to prevent moisture from penetrating the walls. To explain, identifying the main source of the dampness and its severity calls for specialised knowledge. Then, based on our findings, we determine the best method and materials to deal with each case. Rising damp simply occurs when groundwater enters your building’s structure and begins to move upwards. It is not practical in most cases to remove a course of stone to place a plastic, lead or slate DPC in the wall and new methods have been found of introducing a DPC (damp proof course) where there is either none, or one that is broken in some way.

While a DIY damp-proof injection project may appear tempting and budget friendly at first glance, it’s not always the best course of action.

What is Needed to Inject a Damp Proof Course

Seal the injection holes: Once the cream has been injected, the holes should be sealed with a suitable filler to prevent the cream from leaking out.

Consider damp proofing: If you are experiencing persistent damp in your walls, consider having a professional carry-out damp proofing. This will help to prevent moisture from penetrating your walls and causing damage.

It is essential to note that DampSolve DPC Injection Cream is not a cure for hydroscopic salts. Where walls are severely contaminated with salts, plastering with an appropriate, salt-resistant product is necessary to prevent further damage. Renovation Plaster or a sand/cement mix containing a suitable Render Additive, such as Wykamol Renderproof, are popular options for plastering. A diagram of a typical ground floor construction can be seen below and you can see how a Damp Proof Course works in conjunction with the membrane to stop any water rising up into the building above. They don’t need any particular setup and are widely utilised to keep moisture from rising through the walls and generating dampness.