No, this is not recommended by the Concrete Masonry & Hardscape Association. The sand should be screeded smooth before placing pavers. Compaction should only occur once the pavers are placed.
There are two main factors that determine if a paver is able to support vehicular use when set with sand:
- A minimum aspect ration of 3:1 length to depth per paver.
- Pavers used for fire lanes require using an interlocking pattern.
Available products include metal trays and pre-applied fiberglass mesh. The metal trays are available in specific formats. These trays are adhered to the back of the porcelain on site prior to placing the paver. This adds both cost in terms of time and materials. A popular option is the use of fiberglass mesh backing. This mesh backing is applied prior to shipment of material to the jobsite, reducing additional handling.
Permeable pavers perform best in well-draining soils. In areas with poorly draining or clay soils, installation should follow the Concrete Masonry & Hardscape Association’s guidelines for low-permeability conditions. These applications typically require underdrains and geotextile fabric to ensure proper drainage and system performance.
ORCO strongly recommends using either a wet set concrete edge or a bond beam to interface between hardscape and softscape surfaces. Additionally, plastic edgers can be utilized, but may require additional maintenance.
No, this is not recommended by the Concrete Masonry & Hardscape Association. A concrete beam should separate the asphalt and pavers.
Per the Concrete Masonry & Hardscape Association, rates can range from 100 to 1000 inches per hour, depending on aggregate gradation, joint width and maintenance. Based on studies, even with sediment accumulation, systems are able to drain 10 inches per hour, which exceeds most stormwater design requirements.
Utilizing mortar to set pavers is an effective method if pavers either have a poor interlock pattern, or pavers are being used that do not meet the aspect ratio required for the specific job. ORCO recommends using our VBM Bonder product for mortar-setting pavers, thanks to its high bond strength and water repellent properties.
