01
How deep should the base be for a patio in Airdrie's climate?
For Airdrie's climate, a proper paver base is the most critical component for longevity. In our extensive experience, we excavate a minimum of 8 to 10 inches for standard pedestrian patios. This depth allows for a 6 to 8-inch layer of compacted aggregate base, which provides the necessary foundation to resist the powerful forces of frost heave during our freeze-thaw cycles. For areas that will support heavier loads, like a driveway or under a hot tub, we increase this depth to 12 inches or more. A shallow base is the number one cause of failed patios in our region, leading to sinking and uneven surfaces. Proper base preparation is a core part of our interlocking patio installation process that we never compromise on.
02
What is polymeric sand and why is it important for my patio?
Polymeric sand is a fine sand mixed with a binding agent that is swept into the joints between pavers. When activated with a light mist of water, it hardens to form a firm, yet flexible, sealant. This is essential for several reasons. First, it locks the pavers together, creating a durable, interconnected surface that resists shifting. Second, it creates a barrier that prevents weeds from growing up through the joints, significantly reducing maintenance. Finally, it helps prevent erosion of the bedding sand from rain and stops ants from nesting beneath your patio.
03
How long will an interlocking paver patio last?
When installed correctly with a proper base, an interlocking paver patio can last for 30 to 50 years or even longer. The pavers themselves are incredibly durable and manufactured to withstand harsh weather and heavy foot traffic. The longevity of the patio is almost entirely dependent on the quality of the foundation beneath it. That's why we focus so heavily on deep excavation, proper site grading for drainage, and achieving maximum compaction of the paver base. A well-built patio is a long-term investment. With minimal maintenance, such as occasional cleaning and topping up the polymeric sand every few years, the structure of your interlocking patio installation will remain stable for decades.
04
Can you install a patio on a sloped yard?
Yes, absolutely. Installing a patio on a sloped yard is a common project for our team and often provides the most dramatic results. To manage a slope, we typically use one of two methods. The first is site grading, where we carefully excavate and move soil to create a level area for the patio. The second, more common method for significant slopes, is to build retaining walls. These engineered walls hold back the soil, creating a solid, level terrace for the patio. This can also create beautiful multi-level outdoor living spaces. Our expertise as landscape designers allows us to assess the specific grading of your property and recommend the safest, most effective, and aesthetically pleasing solution for your patio.
05
What maintenance is required for an interlocking paver patio?
Interlocking paver patios are valued for being relatively low-maintenance. The primary tasks are seasonal cleaning and monitoring the joint sand. We recommend cleaning the patio surface once or twice a year with a stiff-bristle broom and a simple water-and-soap solution to remove dirt and debris. Avoid using a high-pressure washer too close to the surface, as it can damage the joints. Every 3-5 years, you should inspect the polymeric sand in the joints. If you notice it is cracking or has washed away in areas, it can be topped up to maintain the patio's integrity. Compared to wood decks that require annual staining or sealing, the upkeep for a paver patio is minimal.
06
How do you prevent weeds from growing between the pavers?
Weed prevention is a key benefit of our professional interlocking patio installation method. The primary defense is the use of high-quality polymeric sand. When this sand hardens in the joints, it creates a solid barrier that weed seeds, which are typically airborne, cannot penetrate to find soil and germinate. The secondary defense is the compacted paver base itself. Because we use a thick layer of sterile, compacted gravel, there is no soil directly beneath the pavers for weeds to root into. This two-part system is highly effective at keeping your patio looking clean and minimizing the need for weeding throughout the year, a common frustration with poorly installed patios.
