Damp rods work by creating a damp-proof course within a wall to block moisture.
Here's a more detailed breakdown:
The Science Behind Damp Rods
Damp rods are designed to address rising damp, a common issue in older buildings. This happens when groundwater is drawn upwards through porous building materials like brick and mortar by capillary action. These rods offer a method of creating a barrier to prevent this.
How Damp Rods are Installed
The installation process is quite straightforward:
- Drilling: Holes are drilled horizontally into the mortar joints of the affected wall. These holes are spaced according to the rod manufacturer's instructions.
- Insertion: The damp rods are then inserted into these pre-drilled holes.
- Active Ingredients: The rods release silicone-based active ingredients into the mortar. These ingredients penetrate the surrounding material.
- Damp Proof Barrier: As the silicone-based ingredients spread, they form a continuous, water-repellent barrier, or damp proof course (DPC), within the mortar. This barrier prevents the moisture from rising further up the wall.
Benefits of Using Damp Rods
- Effective Damp Proofing: Creates a durable barrier against rising damp.
- Simple Installation: Can be installed with minimal disruption.
- Long-lasting: The silicone-based barrier is designed to provide long-term protection.
- Cost Effective: Often a more affordable option compared to other damp proofing methods.
Example of Damp Rod Use
Imagine an older house with noticeable damp patches low down on the internal walls. This is often caused by rising damp. Damp rods would be a potential solution. The installer would identify the affected area, drill into the mortar course at regular intervals, insert the rods, and allow them to release their active ingredients. Over time, the wall is protected from further water damage.
Summary of How Damp Rods Work
| Step | Description |
|---|---|
| 1 | Holes are drilled into the mortar joints of the wall. |
| 2 | Damp rods are inserted into these holes. |
| 3 | The rods release silicone-based active ingredients into the mortar. |
| 4 | These ingredients create a damp-proof course, preventing rising damp. |
