What is Going On Under My Turf?

When we begin the process to install synthetic turf we take an assessment of where the turf will sit flush when it is installed to its bordering surface such as the concrete patio. Then the fun part begins, a lot of digging. We need to excavate 6” of soil below the top of the nearest bordering surface. Why 6” of soil? Let’s explore together the importance of such deep soil excavation. 

Sub-Base

We use Class 2 road base to fill 3”- 4” in the area previously excavated. Class 2 road base is a type of construction material used in road and pavement applications. Class 2 road base is typically composed of crushed stone, gravel, or a mixture of these materials. The aggregate used in Class 2 road base is often well-graded, with a range of particle sizes. This helps create a compact and stable foundation for road construction. Class 2 road base is engineered to meet certain specifications for strength, durability, and load-bearing capacity. These properties ensure that the material can withstand the stresses imposed by traffic loads and environmental conditions. Class 2 road base is engineered to provide effective drainage, preventing water accumulation and contributing to the longevity of the road surface.

Now that we know what Sub - Base is and what sub base material is best suited for our synthetic turf installations let's explore why it is beneficial to install 3” - 4” of it.

The sub-base plays a crucial role in the installation of synthetic turf due to several key reasons:

The Class 2 road base material provides stability and load distribution. The sub-base provides a stable foundation for the synthetic turf. It helps distribute the load evenly across the surface, preventing uneven settling or shifting of the artificial grass. This is especially important in high-traffic areas or homes where there may be frequent foot traffic or other kids and pet activities.

The sub-base is also a great contributor to proper drainage. Proper drainage is essential to prevent water accumulation and ensure the longevity of the synthetic turf. The sub-base acts as a drainage layer, allowing water to move away from the surface. This is vital in preventing waterlogged conditions, which could lead to mold, mildew, or damage to the turf over time. 

Not to mention the benefits of having a natural weed barrier to prevent weeds from growing through the synthetic grass. The sub-base minimizes soil movement and settling, preventing depressions or uneven areas in the synthetic turf. This stability is crucial for maintaining a level living surface.In areas with heavy foot traffic or equipment use, the sub-base resists soil compression. It helps ensure that the synthetic turf retains its intended characteristics and remains comfortable and safe for various activities.

A well-prepared sub-base contributes to a smooth and level surface for the synthetic turf. This is essential for achieving an aesthetically pleasing and functional result, particularly in landscaping applications.

Ultimately, the goal is to establish a sub-base that provides stability, proper drainage, and support for the synthetic turf, promoting longevity and performance. The recommended depth serves as a general guideline, and adjustments may be necessary based on site-specific conditions and usage requirements.

Once the sub-base is installed and compacted the total height from the top of the base to the top of the nearest border should be 3”. After we achieve the proper level then we install 1.5” of Stabilized decomposed granite to bring the total distance from the top of the DG to the top of the nearest border the exact height of the synthetic turf material, 1.5”. 

In summary, the sub-base is fundamental for establishing a solid foundation that supports the structural integrity, drainage, and overall performance of synthetic turf. It provides stability, prevents issues like waterlogging and weed growth, and ensures a durable and consistent surface for various applications. Proper preparation and compaction of the sub-base are critical to the long-term success of synthetic turf installations.