Concrete Waterproofing Services: 9 FAQs You Need To Know

Cost-effective and generally long-lasting, concrete is a popular option for driveways, pool decks, retaining walls, planters, and walkways. While it’s an excellent material, concrete waterproofing services are crucial to ensure that these surfaces are protected from foot traffic and the elements.

Concrete, which is formed by mixing cement, water, and components such as sand, gravel, or crushed stone, is a strong and durable material. However, it is naturally porous, which means it contains tiny spaces that can allow moisture to move through it. Cracks and joints can also provide paths for water to enter. Professional concrete waterproofing helps protect these surfaces and reduce water intrusion. Here are some helpful facts about concrete waterproofing in its many forms.

1. Different Concrete Structures Need Different Waterproofing Systems

A pool deck, retaining wall, and planter face different conditions. Contractors choose materials based on water exposure, surface use, and the structure’s design.

2. Concrete Sealers & Waterproofing Systems Are Different

A sealer can help reduce moisture absorption, but it does not necessarily provide the same protection as a waterproofing membrane. The right option depends on the project.

3. Surface Preparation Is Essential

Dirt, oil, loose concrete, and old coatings can prevent waterproofing materials from bonding properly. Thorough preparation helps the system perform as intended.

4. Cracks Need Attention Before Waterproofing

Applying a coating over damaged concrete may leave underlying problems unresolved. Cracks should be evaluated and treated appropriately, especially if they continue to move.

5. Joints and Edges Are Common Trouble Spots

Connections around walls, drains, pipes, and expansion joints need careful treatment. Waterproofing involves more than covering the broad, flat surface.

6. Waterproofing & Drainage Work Together

Proper slope and functioning drains help move water away. Waterproofing alone cannot correct a drainage problem that leaves water collecting on or against a structure.

7. Waterproofing Can Help Protect Reinforced Concrete

Moisture entering concrete can contribute to corrosion of the steel reinforcement inside it. As that steel corrodes and expands, it can cause concrete to crack or break away.

8. Weather & Curing Time Affect Installation

Temperature, rain, and moisture in the concrete can affect application. Waterproofing materials also need adequate curing time before the surface is exposed to water or traffic.

9. Waterproofing Needs Periodic Inspection & Maintenance

Even a professionally installed system needs attention over time. Checking for worn areas, damaged joints, and drainage issues helps identify problems before they become more extensive. We recommend scheduling an inspection every two years for most concrete structures and surfaces.

Thome Waterproofing: A Look at Our Waterproofing Services

At Thome, we can provide you with any type of concrete waterproofing services you might need. For pool decks, other concrete decks, and walkways, we can provide quality waterproof deck coatings.

This offers more protection than waterproofing the surface alone. The coating prevents moisture damage but also helps protect against everyday wear from foot traffic. Depending on the finish you select, it also can improve traction and give the surface a fresh, attractive coating. For pool deck coating, we can also provide you with cool deck coatings, which can make the surface much more comfortable during the hottest months of the year.

For this concrete deck coating process, the typical steps include:

• Inspecting the Concrete – A waterproofing specialist begins by checking for cracks and damaged areas, as well as signs of water intrusion. We also inspect nearby drainage and areas where water collects, as drainage improvements may be needed to prevent future issues.
• Preparing the Surface – Dirt, oil, loose concrete, and incompatible coatings are removed so the waterproofing material can bond properly. This may involve grinding or other surface preparation. The concrete must meet the chosen system’s moisture requirements before application.
• Repairs – Cracks, chips, and deteriorated areas are treated before coating begins. The repair method depends on the condition of the concrete and whether the cracks are still moving.
• Treating Joints & Areas Around Drains – Expansion joints, edges, and connections around drains require careful attention. Flexible sealants or other compatible materials may be used where needed to accommodate movement and help keep water out.
• Applying the Waterproofing System – Once the aforementioned steps are complete, our team of waterproofing contractors applies a coating suitable for the surface and its expected use. Depending on the system, this may involve a primer, waterproofing layers, and a protective topcoat.
• Adding the Finish & Allowing It to Cure – The system may include a textured finish to improve traction and a decorative color to enhance its appearance. The coating must cure for the required time before people walk on it or it is exposed to water.
• Inspecting the Completed Surface – We never walk away without a thorough inspection, checking for consistent coverage, properly treated joints, and any missed or defective areas.

Of course, with raised decks, roof decks, and balconies, especially when these structures rest above the main structure of a home or building, the process of deck and balcony waterproofing is far more involved than applying waterproofing coatings.

In these cases, we often have to remove the entire deck surface, along with portions of the surrounding stucco, to access the underlying materials and connections where water can enter.

We inspect the exposed structure, repair water damage, and prepare or replace the deck substrate as needed. The work may also include correcting the slope for drainage, installing or replacing drains, adding flashing where the deck meets the walls, and installing new door pans beneath door thresholds to help prevent water from entering at these openings.

Once these details are addressed, we install the appropriate waterproofing system, carefully sealing around joints, edges, and drains. Finally, we apply the protective finish, restore the affected stucco, and inspect the completed work, allowing the materials to cure before the deck is used.

We also can provide concrete waterproofing services for other types of structures. For instance, if you need retaining wall waterproofing or planter waterproofing, we can provide these services as well.

If you are searching for waterproofing companies in Los Angeles, Thome Waterproofing has provided top-quality waterproofing for residential and commercial clients throughout the Southland. Whether you need concrete waterproofing services, below grade waterproofing, decorative coatings, or something else, we can provide you with waterproofing that will enhance the look of your property as well as protect it from water intrusion.