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How Do Pavers Stay In Place?

What Keeps Pavers From Not Moving?

Edging keeps your pavers interlocking and prevents lateral movement over time. It is also the first thing you notice if your pavers are shifting, lifting, sinking or inviting weeds & moss.

The most popular option is a plastic edge restraint fastened with a spike. However these have problems over time with freeze thaw cycles and traffic.

The Base

Pavers are only as stable as the foundation they sit on. This is why it’s important to build a substantial gravel base before installing the pavers.

A well-constructed base can help prevent settling over time. It is also critical to ensure that the subbase layers are compacted and even. The most effective way to do this is by using a vibrating plate compactor. These machines look like a simplified push mower and are usually manually operated. If possible, try to compact the subbase layers one thin layer at a time. Slightly wetting the crushed stone subbase can aid in the compaction process.

The bedding layer of a traditional paver project is comprised of a 1” bedding of High Performance Bedding (HPB) or 1/4’’ angular crushed clean stone and a screed of concrete sand. This layer is compacted and leveled just prior to installation of the pavers. The sand is coarse and has irregularly sized granules that bind together to form a strong, dense surface.

The Edge Restraint

There are a few different options for edge restraints. Plastic paver edging is one of the most common choices but it can fail due to freeze-thaw cycles forcing the spikes upward and exposing them. This happens when the edging is installed too high or when the base was not compacted properly.

Another option is a concrete toe that encloses your project. This is a more practical choice as it won’t be affected by freeze-thaw cycles and offers adherence to the pavers and the base material. However, concrete is prone to cracking and can separate from the paving stones if not properly reinforced with fibres or rebar.

Finally, there is a metal paver edge that works for permeable or open graded base systems. It has holes that are criss-cross with each other at a 60-degree angle for a base without fines and a 10 inch non-galvanized spike is inserted into these. This prevents the spikes from getting forced up through freeze-thaw cycle and makes it more resilient to lateral movement.

The Joint Fill

While the base and edge restraints help to keep pavers stable, a proper joint fill is also needed. Many contractors choose to use a polymeric sand for this purpose because it is specially designed to stay in place and work with the slight movement that occurs between pavers.

This special sand is comprised of a mix of coarse, sharp-grained and irregularly shaped sand particles that create friction between the pavers and make them stick together. Polymeric sand also contains polymers that activate when it is wet, binding the different components of the sand and creating optimal stability for the entire project. This sand also helps to reduce weed growth, making it an essential part of the paver installation process.

One thing to remember when using this type of sand is that it must be applied and screeded dry. If it is wet, the polymers in the sand will start to set up early and leave a haze on the pavers. This is very difficult to remove, and it can cause a lot of damage to the paving materials.

The Sealer

Pavers go through a lot in the outdoors — foot traffic, cars driving over them, blazing sun and pounding rain. They can also be susceptible to fading, staining, and invaders like mildew and weeds. Sealing pavers protects them from these problems and helps them stay looking beautiful and vibrant.

If you have natural stone pavers, they need to be sealed a few times a year. This will help to reduce their sensitivity to moisture, especially during freeze-thaw cycles. It will also improve their durability and resale value.

A penetrating sealer penetrates into the pores of the pavers to create a barrier against water, dirt, and oil. It’s a good idea to hire a professional for this task because it requires special equipment and important preparation steps before application. It’s also a messy job that can make your yard look dirty until the sealing is complete. You’ll want to plan on having this done during dry weather so that the overspray doesn’t harm surrounding plants.

If you need pavers installed in Orlando or surrounding areas, call us for a free quote.

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Company Information

We are a full service landscaping company located in Orlando, FL. Specializing in lawns service, landscape design, installation, and general landscaping services. Over 10+ years of experience.

Collegiate Lawn and Landscaping

4009 Feldspar Trl. Orlando, FL 32826

(407) 205-8237