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Getting the Best Outcome from a Tarmac Driveway


In any property, whether residential or commercial, a driveway is one of the key highlights. Therefore, it makes a lot of sense to invest in and ensure the best outcome for your driveway. There are lots of decisions involved in driveway constructions including taking responsibility for things such as buried telephone wires, gas supply pipework and electrical wires.

For the best outcome, you should hire competent Cardiff and Newport tradesmen who can take up any challenge and job specification. Companies registered to lay tarmac, asphalt, or tarmac driveways are the best choice in this as they have the necessary equipment to handle all your tarmac installations.

Why Tarmac

Tarmac is famous for its strength and durability. Owing to its composition, tar and crushed stone, tarmac has a good grip, is water resistant and gives your driveway surface a good aesthetic. This explains why it is preferred for driveways.

The planning work that goes into the construction of tarmac driveways is very crucial. It helps a great deal in determining the efficiency and stability of the final surface. Driveways that are only used as access points to properties may not suffer much from the abuse of petrol, chemical, and oil pools.

However, driveways that also serve as parking lots are often under the risk of corrosive chemicals especially where the tarmac is not correctly sloped. Through forward planning, such risks and many others including impact damages from falling items and excessive pressure from load-bearing trucks can be factored in the tarmac-laying process.

Tarmac Driveway Slopping for Drainage

If improperly done, drainage around tarmac drives in Cardiff and Newport can cause a huge problem. In cases where the driveway slopes towards a building, flooding and dampness may result. Unless the tarmac is laid to a gradient, snow, melting ice and rainwater may have no chance of draining off the surface.

The same applies to cleaning of driveways; insufficient drainage gradients may cause the cleaning liquids to stay on. This can have a corrosive effect on the tarmacked surface. The best tarmac gradient for uninterrupted surface drainage, is between 1:60 and 1:80

The Size and Colour of your Tarmac Driveway

Tarmac comes in different colours and sizes. This is mainly determined by the type and size of the aggregate. For instance, you may use the type of aggregate commonly used on roads on your driveway to set it apart. Alternatively, coloured aggregates can help your driveway blend well with your surroundings.

Driveway Cardiff and Newport professionals can help you choose the best binding agent. For a great effect, the professionals first conduct a situational analysis and then match the colour of the binder to that of the aggregate.

Layers of Construction and Finishing

There are several layers involved in tarmacking driveways starting from excavations that go as deep as 18 cm followed by a sub-surface of crushed hardcore rolled into place by a road roller. While the tarmac is being laid, decorative stone or kerbstones are usually laid and haunched on both sides, supported by the tarmac.

The first layer of tarmac is the base which is then followed by the wearing course. The base layer has a larger grade of aggregate while the top surface comprises smaller grains giving a much finer and better-looking top layer.

Normally, tarmac driveways set fairly rapidly and are available for use within an hour. However, for the first week, aggressive braking or acceleration should be avoided to prevent early damage.