Walking on uneven, wavy interlock pavers can be frustrating. Discover the reasons behind these failures and learn how to ensure a durable, long-lasting installation.
What is a Proper Base?
A solid foundation is crucial for stable interlock pavers. Traditional Granular A or 3/4" Minus, or more modern 3/4" crushed clear stone, provide essential support. Proper base thickness varies based on anticipated load – typically 6" to 8" for walkways and sidewalks and 10" to 12" for driveways.
What is a Proper Screeding Layer?
The screeding layer is a critical component of interlock paver installation, responsible for stability and drainage. However, traditional bedding sand can present several challenges, leading to unsightly outcomes and maintenance headaches.
Traditional methods often involve using 1" of bedding sand, which can exacerbate issues such as sinking, unevenness, and weed proliferation. Excessive sand thickness can cause pavers to shift and settle, resulting in a wavey appearance that detracts from the overall aesthetic of the space. Moreover, sand retains moisture, creating a breeding ground for pests and weeds, while also posing risks of erosion and washout during heavy rains or heaving during freezing temperatures.
Enter High-Performance Bedding (HPB) or 1/4" Crushed Stones – a modern, superior alternative that addresses these concerns effectively. HPB consists of small, angular stones with no fines, which interlock and stabilize the pavers securely in place. Unlike traditional sand, HPB allows water to permeate freely, preventing moisture buildup and minimizing the risk of heaving or washout. Additionally, its firm composition discourages weed growth and ensures long-lasting stability, reducing the need for frequent maintenance and repairs.
Why Are My Pavers Shifting?
Shifting pavers are often a result of inadequate edge support and improper landscape design. Proper techniques dictate maintaining a minimum base overbuild of 6" from the edges of your product to ensure the structural integrity of the paver installation. Installing snap edgers further reinforces stability, especially in high-traffic areas like driveways.
What Are My Options If I Need a Lift and Relay?
If your interlock pavers require lifting and relaying, it's crucial to address the underlying issues to prevent recurrence.
Option 1: Simple Lift & Relay - Carefully lift the existing pavers, address settled areas, rescreeds the entire surface, and reinstall the pavers to in the same position as they originally laid. While budget-friendly, this option does not address the underlying issues that may result in a reoccurrence.
Option 2: Replace the Screeding Layer - Remove all bedding material and replace it with High-Performance Bedding (HPB) or 1/4" Crushed Stones. If the original screeding layer was excessively thick ensure to replace the majority of the excavated area with a granular base first, ensure no more than 1" of the screeding layer remains. Now you are ready to reinstall your original Interlock Pavers.
Option 3: Install a Granular Base - In cases where a deficient or absent granular base is identified, our comprehensive recommendation involves excavation and the installation of a new granular base, before reinstalling your original interlock paver product. This foundational work is essential for establishing long-term stability and resilience, providing a solid footing for your interlock paver surface.
At Hoffman Maintenance & Contracting, we assess each situation carefully to determine the most effective solution for your specific needs. Trust us to deliver professional interlock paver services that restore the beauty and functionality of your outdoor space. Contact us at 548-888-8002 or click here to schedule a consultation and explore your options for interlock paver repair and maintenance.
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