Can polymeric jointing sand eliminate weed growth in joints?
Techniseal polymeric sand prevents weed growth in paver joints almost completely. However, it is important to keep in mind that if pavers get very little sunlight and a lot of moisture, moss and algae growth is inevitable. In fact, contrary to popular belief, growth takes place on top of the polymeric sand joint and not from underneath the pavers. Airborne particles often accumulate in the joints, creating a friendly environment for moss growth. For most folks, this is an undesirable situation, this is why it is important to reduce the moss inducing factors by applying a protector and plan for an annual cleaning.
