Damp Course Using Damp Proofing Rods (How & Why)

Damp proofing rods are a relatively simple and inexpensive way of doing a damp proof course (DPC). In this video, John explains why we use damp proofing rods and how they work effectively.

There are plenty of methods and plenty of products on the market for doing a damp course. We use damp proofing rods because they are easy to install and relatively quick to take effect. This is the method of installation:

🔵 Plaster is removed from the bottom of the walls up to a height of 1.5m – this is because rising damp can reach a height of up to approx 1.2m. Rising damp not only brings moisture but also brings hygroscopic salts, nitrates, and chlorides. By removing 1.5m of plaster, you are effectively eliminating any contaminated plaster.

🔵 Holes are drilled into the mortar (usually the first layer of mortar after the first row of bricks from the floor) at the perpend junctions. So approximately every half-brick. The depth of the hole depends on the depth of damp proofing rod you require. We use Dry Rods, which come in lengths of 180mm that can be cut to size. For walls thicker than 9”, multiple rods can be combined.

🔵 The damp proofing rods are inserted into the pre-drilled holes and left to cure. Each rod contains exactly the right amount of water repellent material – known as silane concentrate.

🔵 Once cured, the silane concentrate seeps into the wall to form an extremely effective damp barrier. It will dry out the damp wall 𝘢𝘯𝘥 stop rising damp from setting back in. As John demonstrates, you can actually see this happening. Once the water repellent material from one perpend has seeped sufficiently to reach the next, you know that the barrier has been formed.

For more information on the Dry Rod damp proofing rods that we use, you can visit https://safeguardstore.co.uk/dryrod-d...

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