Screed Waterproofing Features

Hey everyone, and welcome back to my channel! Today, we’re diving deep into the world of floor waterproofing under screed.

Now, if you’re planning a renovation or building a new home, understanding how to properly waterproof your floors is crucial. It’s the key to preventing moisture damage, mold growth, and a whole host of other problems down the line.

In this video, we’ll be exploring the different features of floor waterproofing under screed. We’ll cover everything from the types of waterproofing membranes available to the best practices for installation.

Whether you’re a seasoned DIYer or just starting out, this video will provide you with the knowledge you need to make informed decisions about your floor waterproofing project.

So, grab a cup of coffee, sit back, and let’s get started!

The main purpose of floor waterproofing under the screed is to protect the underlying structure from moisture damage. This is especially important in areas like bathrooms and kitchens, where water is frequently used.

There are two main types of floor waterproofing:

• Liquid-applied membranes: These are applied like paint and form a continuous, seamless barrier against moisture.
• Sheet membranes: These are pre-fabricated sheets that are glued or welded together to create a waterproof barrier.

The type of waterproofing you choose will depend on the specific needs of your project. For example, liquid-applied membranes are a good choice for areas with complex shapes, while sheet membranes are easier to install on large, flat surfaces.

There are a variety of different waterproofing materials available on the market. Some of the most common include:

• Asphalt: This is a traditional waterproofing material that is still used today. It is relatively inexpensive and easy to apply, but it can be brittle and crack over time.
• Polyurethane: This is a more modern waterproofing material that is more flexible and durable than asphalt. It is also more expensive, but it is a good choice for areas that are subject to heavy use or movement.
• PVC: This is a synthetic material that is often used in sheet membranes. It is waterproof, durable, and relatively inexpensive.
• EPDM rubber: This is a synthetic rubber that is often used in liquid-applied membranes. It is waterproof, flexible, and resistant to chemicals.

The best material for your project will depend on the specific needs of your project and your budget.

In addition to the waterproofing membrane, you will also need some other materials to install your floor waterproofing system. These include:

• Primer: This is applied to the substrate before the waterproofing membrane to help it adhere better.
• Tape: This is used to seal the seams between the sheets of membrane or to seal the edges of the membrane to the walls.
• Drain: This is used to allow water to drain away from the waterproofed area.
• Screed: This is a layer of concrete or other material that is poured over the waterproofing membrane to protect it and provide a level surface for the flooring.

Floor waterproofing under the screed is an important step in protecting your home from moisture damage. By choosing the right materials and following the proper installation procedures, you can ensure that your floor will be waterproof and last for many years to come.

1. Cleaning the base: Start by thoroughly cleaning the base where the screed will be laid. Remove all debris, dust, and loose particles to ensure a strong bond between the screed and the base.
2. Applying a primer: Apply a suitable primer to the base. This will help to improve adhesion and prevent moisture from migrating from the base into the screed.
3. Installing a waterproofing membrane: Lay a high-quality waterproofing membrane over the entire surface of the base. Ensure that the membrane overlaps at the edges and extends up the walls to a sufficient height.
4. Sealing the edges: Seal the edges of the membrane with a compatible sealant to prevent water from seeping through.
5. Installing expansion joints: Install expansion joints around the perimeter of the room and around any fixtures or pipes that penetrate the screed. These joints will allow for movement and prevent cracking.

1. Mixing the screed: Mix the screed according to the manufacturer’s instructions. Ensure that the consistency is smooth and workable.
2. Pouring the screed: Pour the screed over the waterproofing membrane, ensuring that it is evenly distributed and fills all gaps.
3. Leveling the screed: Use a screed level or a straight edge to level the surface of the screed.
4. Curing the screed: Allow the screed to cure for the recommended time before proceeding with any further work.

• Always use high-quality materials: Don’t compromise on the quality of the waterproofing membrane, screed, or other materials. Using inferior materials can lead to leaks and other problems down the road.
• Follow the manufacturer’s instructions: Carefully follow the manufacturer’s instructions for all materials used in the process. This will help to ensure that the waterproofing system is installed correctly and performs as intended.
• Hire a professional if you’re not confident: If you’re not confident in your ability to install the waterproofing system yourself, it’s best to hire a professional. A qualified contractor will have the experience and expertise to do the job right.
• Test the waterproofing system before tiling: Once the screed has cured, it’s important to test the waterproofing system before installing any tiles. This can be done by filling the room with water and checking for leaks.

• Bathroom in a high-rise apartment: A waterproofing system was installed in a bathroom in a high-rise apartment. The system included a high-quality waterproofing membrane, a self-leveling screed, and a waterproof sealant. The system was tested and found to be leak-free.
• Basement renovation: A waterproofing system was installed in a basement renovation project. The system included a dimpled membrane, a drainage system, and a sump pump. The system was designed to prevent water from entering the basement and causing damage.
• Outdoor patio: A waterproofing system was installed under an outdoor patio. The system included a liquid-applied membrane and a protective coating. The system was designed to prevent water from seeping through the patio and damaging the underlying structure.