A primary material used to fill the spaces between pavers is polymeric sand.
Understanding Paver Joint Fillers
When installing pavers, tiles, or natural stone, there are intentional empty spaces left between each piece. These spaces, known as paver joints or simply joints, need to be filled with a material to stabilize the pavers, prevent weed growth, deter insects, and inhibit erosion.
Polymeric Sand: A Key Material
Based on available information, polymeric sand is a widely used material for filling paver joints. It serves as a jointing sand, filling the gaps between paver units.
What is Polymeric Sand?
According to the reference provided, polymeric sand is:
- A material used to fill paver joints.
- Sometimes referred to by other names such as:
- Jointing sand
- Paver sand
- Hardscape sand
The reference also states that jointing sand is made up of:
- Fine grains
- A mixture of specific additive particles (added by manufacturers)
These additives are what differentiate polymeric sand from regular sand, enabling it to harden and bind the sand particles together when activated (typically with water), providing a more durable and stable joint filler.
Why Fill Paver Joints?
Filling the joints between pavers with materials like polymeric sand is crucial for several reasons related to the longevity and maintenance of your hardscape project:
- Stability: The joint filler helps lock the pavers in place, preventing shifting or wobbling.
- Weed Prevention: A properly filled joint creates a barrier that makes it difficult for weeds to germinate and grow.
- Insect Deterrence: Fills gaps that insects might otherwise inhabit.
- Erosion Control: Prevents the base layer beneath the pavers from washing away through the joints.
While polymeric sand is a popular and effective option, other materials like traditional sand or mortar can also be used, depending on the specific application and desired outcome. However, polymeric sand's unique composition makes it particularly effective in creating durable, weed-resistant, and erosion-resistant joints for many residential and commercial paver projects.
