An exposed aggregate pool finish offers a timeless look, combining natural beauty with a durable, non-slip surface. Over time, however, even the most robust pool surfaces can show signs of wear. If your exposed aggregate pool is looking dull, stained, or rough, a renovation might be the perfect way to restore its sparkle and functionality.
This guide will walk you through everything you need to know about renovating your exposed aggregate pool. We will cover the signs that it’s time for an update, the step-by-step renovation process, and the benefits you can expect from this worthwhile investment. Let’s dive in and explore how to bring your pool back to its former glory.
What is an Exposed Aggregate Pool Finish?
Before discussing renovation, it’s helpful to understand what an exposed aggregate finish is. This popular pool surface is created by mixing cement with small, decorative stones, pebbles, glass beads, or shells. After the mixture is applied to the pool shell, the top layer of cement is washed away, or “exposed,” revealing the colorful and textured aggregate beneath.
The result is a stunning, multi-toned surface that is not only beautiful but also highly resistant to chemicals and staining. Its slightly bumpy texture provides a natural non-slip grip, making it a safe choice for families.
Signs Your Exposed Aggregate Pool Needs a Renovation
How do you know it’s time to renovate? While exposed aggregate is incredibly durable, it isn’t immune to the effects of time, chemical imbalances, and constant use. Here are the key indicators that your pool surface needs attention.
Widespread Staining and Discoloration
While minor, isolated stains can often be treated, widespread discoloration that doesn’t respond to chemical treatments or deep cleaning is a clear sign of aging. Stains from metals like iron or copper, algae blooms, or organic debris can penetrate the surface over the years, making them nearly impossible to remove completely. A new finish will give your pool a fresh, clean appearance.
Rough Patches and Sharp Edges
The primary appeal of exposed aggregate is its smooth yet textured feel. If you notice the surface has become excessively rough, sharp, or abrasive on your feet, it’s a sign of delamination. This happens when the pebbles or stones start to dislodge from the cement matrix, creating uncomfortable and potentially hazardous spots. This “pop-off” issue not only affects comfort but also signals a breakdown of the surface integrity.
Cracks and Structural Damage
Small hairline cracks (craze cracks) are often cosmetic and not a major concern. However, larger structural cracks that go through the pool’s shell are a serious problem. These can lead to significant water loss and further damage the pool’s structure. If you see cracks that are growing or leaking, a full renovation is necessary to address the underlying issue before resurfacing.
Persistent Leaks
Is your pool’s water level dropping faster than usual? While leaks can come from plumbing or equipment, they can also originate from cracks in the pool’s surface. A professional leak detection test can pinpoint the source. If the surface is the culprit, a renovation that includes repairing these cracks and applying a new waterproof layer is essential.
The Exposed Aggregate Pool Renovation Process
Renovating an exposed aggregate pool is a multi-step process that requires professional expertise for the best results. Here’s a breakdown of what you can expect from start to finish.
Step 1: Draining the Pool
The first step is to completely drain the pool. This is typically done using a submersible pump. A professional will ensure the water is drained safely and according to local regulations, paying close attention to the hydrostatic pressure to prevent the pool shell from popping out of the ground.
Step 2: Surface Preparation
This is the most critical phase of the renovation. The existing surface must be properly prepared to ensure the new finish adheres correctly. This involves:
- Undercutting: Cutting around all fittings, tiles, and fixtures to create a clean edge for the new material.
- Bond Coating: Applying a special bonding agent to the old surface. This acts as a primer, creating a strong connection between the old shell and the new aggregate finish.
- Crack Repair: Identifying and repairing any cracks. Larger structural cracks are often filled with epoxy or staples to ensure they are stable and waterproof.
Step 3: Mixing and Applying the New Aggregate
With the surface prepared, the new exposed aggregate material is mixed on-site. This mixture consists of cement, pigments for color, and the chosen aggregate (pebbles, glass, etc.). The material is then pneumatically applied or troweled onto the pool surface by skilled applicators to a specific thickness. The team works quickly and methodically to ensure a seamless, even coat.
Step 4: Exposing the Aggregate
Shortly after the material is applied, the “exposing” process begins. This is where the artistry comes in. A light spray of water is used to wash away the very top layer of cement, revealing the beautiful stones and pebbles beneath. This step must be timed perfectly. If done too soon, too many pebbles will wash away; if done too late, the cement will be too hard to remove.
Step 5: Acid Wash and Detailing
After the initial exposure, the surface is allowed to cure for a day or two. An acid wash is then performed to remove any remaining cement haze from the aggregate, which brightens the colors and gives the finish its final look. The pool is then detailed, ensuring all fittings are clean and the entire surface is perfect.
Step 6: Refilling and Chemical Balancing
Finally, the pool is refilled with fresh water. Once full, the process of balancing the water chemistry begins. This is a crucial final step, as properly balanced water will protect the new surface and ensure its longevity. Your pool professional will provide specific instructions for startup chemistry to help the new finish cure correctly over the next few weeks.
Benefits of an Exposed Aggregate Renovation
Renovating your pool is more than just a repair; it’s an upgrade that offers numerous advantages.
- Enhanced Aesthetics: A new finish completely transforms the look of your pool, making it the stunning centerpiece of your backyard once again.
- Improved Safety: By eliminating rough patches and creating a uniform non-slip surface, you make the pool safer and more comfortable for swimmers.
- Increased Durability: Modern aggregate formulas are more advanced than ever, offering superior resistance to chemicals, staining, and algae.
- Higher Property Value: A beautifully renovated pool is a major selling point that can significantly increase the value and appeal of your home.
Ready to Transform Your Pool?
An exposed aggregate pool renovation is a powerful way to restore your pool’s beauty, safety, and value. By understanding the signs of wear and the professional process involved, you can make an informed decision about revitalizing your backyard oasis. A new surface will provide you and your family with many more years of enjoyment.
Looking to upgrade your pool? Contact Estate Renovation today. Our experts deliver quality pool renovation Sydney services that fit your style and budget.