Retraint and Border Styles For Tarmac
When you opt for a tarmac or asphalt driveway, numerous options are available for bordering the asphalt or tarmac area, but an edging restraint is always required if there are steep levels.
The difference between edging and bordering is often confused. Bordering, in general, is a decorative option for your driveway to provide definition and shape, whilst edging is generally used to retain the driveway.
Edging and, in particular, edging kerbs are set into deep concrete and are used when the driveway requires retaining where there is a level drop beside it or when the driveway has a larger than normal slope, which can lead to movement on the driveway.
Edging kerbs are set in before any base foundation is installed, which means they will retain the asphalt and, more importantly, the base underneath it.
Concrete edging is primarily available in a concrete grey colour, but more bespoke options are available, such as block kerbing and key kerbs. These are available in multiple colours but cost significantly more than concrete edging kerbs.
Concrete edging kerbs are available either as a flat top kerb or as a bull nose rounded edge. More often than not, the flat-top edging kerbs are used when the driveway comes flush with the top of the kerb, while the bull-nosed is used when the kerbing is set at a higher level.
Bordering a driveway is generally done using block paving bricks, cobblestones, natural stone, or, on occasion, slabbing (depending on where).
Since the bordering is more decorative, it is set in a concrete bed and will be finished flush with the surface. If you require edging kerbs to be fitted, the bordering will sit tight against the edging kerbs, locking them in place.
Colour styles and laying pattern for a both can be decided upon when we drop samples off, it is easier to visualise the border when the samples are laid out for you in a border style.
We hope this has helped clarify the differences between edging and bordering styles. If you would like a 100% free estimate from our tarmac contractors in Beckenham, call us on 020 8485 9383.