Components for Your Artificial Grass Installation
Outside the actual model of artificial grass, there's two primary components involved in the installation of a complete artificial grass system. The sub-base and infill used.
Sub-base is the term we use to describe the area that lies directly underneath the artificial grass. It is commonly made up of a sand/gravel mixture, although in some instances it could be concrete or asphalt if placing artificial grass over a patio, or even a wood base if installing over a deck. For examples below, we'll be assuming that installation is occurring in leiu of natural grass.
Well Yes and No. The answer is that soil expands when it gets wet, and contracts after drying. This expansion and contraction can result in wrinkles and/or soft spots and can create an uneven surface for your artificial lawn over time.
For front lawns that see limited foot traffic, Lazy Lawn’s Bronze installation method uses this method of installation, we inform customers that wrinkles will occur. These may take years to develop, and fixing it isn't a be deal. It would require temporary removal of the artificial grass, and a reveling of the area.
A sub-base is used to replace the expansive native soil with a non-expansive surface which will help to ensure an artificial grass installation will continue to look good for the duration of its 15 to 20 year useful life.
Types Of Base Systems
High Performance Bedding, is a base material of choice at Lazy Lawn. It consists of a 3/8” washed limestone chip(not limestone dust, which creates concrete). When used correctly it provides excellent drainage properties and is approximately 97% compacted without any compaction. We'll even add 3/4 clear limestone rocks for added strength.
Limestone Screening is a crushed limestone product. It is made up of chips (1/4”) mixed with dust. It is typical used as a grading base under patio materials. We'll use it only for building and grading putting greens, which don't require drainage, but require enhanced strength. We do not recommend using this base under you artificial lawns, yet many competitors use it to this day. We need our artificial lawns to be 100% porous, so we don't kill tree, or damage our aging sewer systems
CMB typically comes from recycled concrete and/or recycled asphalt and consists of a sand/gravel mixture of 3/4” to fine. Class II road base is similar but is subject to more stringent testing which makes it more expensive, and in most artificial grass applications, it is not necessary. Generally used in building football or sports fields.
Infill for Your Artificial Grass
Infill is the component that's adding into the artificial grass lawn after installation. We determine the amount and type based on the primary use of your artificial lawn.
Why do we recommend this? Because artificial grass infill serves four primary purposes:
- To protect the primary backing from UV exposure.
- To add weight - The Artificial grass backing will expand and contract with changes in temperature. Now we already combat this by producing our products with industry leading primary and secondary backings to ensure dimensional stability. However, we also rely on infill as another tool to assist in dealing with expansion. The addition of weight in conjunction with using a sufficient number of nails helps to ensure your artificial grass doesn’t end up with wrinkles. General rule of thumb would be to add 1lbs per infill per square foot or turf.
- Traction for Playgrounds: Running on plastic isn't ideal, especially when slightly wet. Infill provides the grip and tractioning ability children require when running on an artificial grass lawn.
- Helps keep your Grass Blades upright: Ideally you'll want the top 1/2"-3/4" to be visible, the remained is covered in infill. The infill keeps the blades standing tall even after foot traiffic.
Types of Infills
Silica sand used to help keep the grass upright, and also provides the traction needs when the kids are running around on the lawn. It also helps cool the turf in the hot summer months.
Silica Sand (50lbs Bag) used for Lawn, Landscaping and Golf applications. We would recommend 1-2lbs per square foot on our putting greens, the more sand the faster your green will become. On lower density lawn and landscaping models, add 1.5-2lbs of silica sand per square foot. On higher density models, such as Winter Rye Premium, add ½-1lb per square foot. Remember, it doesn’t need to be added all in one shot.
Zeolite is used as an infill for pet turf applications. Zeolite is primarily used as an artificial grass infill for its odor reducing abilities.
Zeolite is a negatively charged, honeycomb-shaped molecular structure which absorbs liquids and gases like a magnet to prevent ammonia from forming a gas. (The ammonia buildup in pet urine is what you associate with the smell.) This molecular structure holds the ammonia until the sodium ions found in rain water release the magnetic ability which forces the odor causing bacteria down into the ground ultimately “flushing out” the ammonia smell.
Crumb rubber is used as an infill in sports fields for its ability to soften the impact on athlete joints, and it’s ability to quickly help compress the grass blade upwards. We would only used this on sports fields or extremely high trafficked commercial areas.