The install area is dug out to a depth of approx 200mm making sure that the finished level is 150mm below the damp proof course in the brick of any adjoining buildings. If there are soft spots these are filled with sub-base material.
A slight slope is constructed with a 1:40 fall across the width of the drive and a 1:80 fall along the length t o aid the dispersion of standing water. Edge restraints are then laid with the sub-base added inside of the edge restraints and raked to the desired level in layers of 50mm.
A Vibrating plate is passed over the area at least seven times to ensure the base is at least 100mm thick after it has been compacted. Once this has been done a layer of around 50mm of sharp sand is added and again compacted with the use of a vibrating plate. A second layer of sand is then added on top of this at a level of approximately 20mm, this layer of sand is then levelled to the correct falls using a string line, screeding rails and straight edge.
The blocks are then laid to the desired design by hand and the joints filled with kiln dried sand. After doing this, the drive is compacting with the vibrating plate. More kiln dried sand is swept over the drive and once again the driveway is compacted. This is done until all of the joints are full of sand.
All waste materials are removed from the site.