The main importance of drainage membranes in waterproofing

Drainage membranes are an effective solution for protecting your property from water damage. These waterproof webs create an invisible barrier to moisture, preventing leaks, mold, and structural damage. Understanding how to use them can save you time and money during construction or home remodeling.

What are drainage membranes?

Made from durable materials such as polyethylene or bitumen, drainage membranes divert water away from foundations, basements, retaining walls and tunnels, providing a watertight seal.

Why are drainage membranes important?

Moisture can cause serious damage to buildings, causing:

· Structural damage: Excess moisture weakens materials such as concrete and wood.

· Mold growth: Moisture can lead to health risks.

· Flooding: Poor drainage can lead to costly repairs.

· Cracking and settling: Water pressure can cause foundation problems.

Installing drainage membranes diverts water away from vulnerable areas, reducing these risks.

Proper installation is critical for drainage membranes to work effectively. Here are some key tips to ensure maximum protection:

1. Preparation is key

Before applying the drainage membrane, make sure the surface is clean and dust-free to allow the membrane to adhere properly and function as intended. Any existing cracks in the foundation should be pre-filled to prevent water infiltration.

2. A primer (bitumen based for example  "KRZ" Bitum primer, which is designed to prepare insulated surfaces (concrete slab, cement-sand screed, etc.) should be applied to the cleaned surface for adhesion. Then install the membrane on vertical and horizontal surfaces

Drainage membranes are versatile and can be applied to both vertical (walls) and horizontal (foundation) surfaces. For walls, make sure the membrane is applied from ground level to above the anticipated water line. On foundations or slabs, the membrane should cover the entire substrate so that there are no vulnerable areas through which water can seep.

3. overlap edges

When installing multiple sheets of drainage membrane, make sure the edges overlap by at least 3-4 inches to create a continuous waterproof layer. This overlap will prevent water from entering through seams and gaps.

4- Use a layer of geotextile

To further improve the effectiveness of your drainage membrane, place a layer of geotextile over it before backfilling. This will protect the membrane from punctures caused by rocks and soil and ensure its longevity.

Choose Citadeli for reliable drainage membranes and everything else you need to protect your home from moisture-related issues.