During synthetic turf installation, many homeowners choose based on blade texture and color, but the material placed beneath it—the underlay—is just as critical to the lawn’s long-term performance. The underlay serves as the foundation that supports the synthetic grass, helping it preserve its natural look, drainage efficiency, and longevity over time. Without a proper underlay, even the high-end artificial lawn can sag or sink, or become waterlogged after just a seasons of use.

A good underlay begins with a stable base. Typically, this involves a a compacted gravel bed that is compacted to create surface. This base stops the grass from moving or deforming with use and promotes optimal drainage, reducing the risk of pooling that can lead to mold or damage to the backing.

In addition to drainage, the underlay helps cushion the surface. While artificial grass doesn’t need to be as plush as real turf, a strategically layered foam makes the lawn safer and more enjoyable for activity. This is essential in areas often touched by animals. Some underlay materials incorporate EVA or rubber padding designed to reduce pressure points, which also slows down wear from repeated use.

Another key function of the underlay is preventing invasive roots. A professional-grade geotextile often includes a geotextile fabric that blocks roots and weeds from pushing up. This eliminates unsightly patches that can compromise the appearance of the lawn and eliminates the need for chemical treatments that can weaken the backing material.

The choice of underlay material matters significantly. In sun-drenched regions, cooling membranes can minimize thermal retention. In freeze-prone areas, frost-resistant bases prevent expansion-related cracking by facilitating complete runoff before it turns to ice. Using the wrong material for your climate zone can lead to premature aging, fading, or collapse of the base.

Installation is equally crucial as material selection. Even the best underlay won’t help if it’s improperly assembled. Uneven grading, loose substrate, 熊本 人工芝 業者 or incorrect sequence can nullify the advantages. That’s why expert setup is highly preferred, especially for multi-level installations.

Ultimately, the underlay is the unsung hero in the success of your artificial lawn. It might not be seen once laid, but its presence makes the difference between a lawn that looks great for a year and one that retains its appeal for a generation. Investing time and resources into choosing and installing the right underlay ensures your artificial grass functions flawlessly, looks natural, and requires minimal care for years to come.