Tarmac Laneways For Homes In Newbridge
On larger private houses in Newbridge, a laneway in tarmac or asphalt commonly ties into the driveway. Tar and chip is also laid on laneways.
A rural laneway that only needs lightly grading off before the tarmacadam goes on top is a distinctly Irish job. Where a lane needs more than grading, the work we do is a new foundation, edging kerbs, borders, aprons and drainage.
Why Tarmac For A Laneway
Tarmac is the most straightforward surface to lay over a large area, such as a long lane in Newbridge. It suits driveways and laneways alike.
You can walk on new tarmac immediately. Cars go on it after 24 hours, and heavy duty traffic needs 48 hours for it to cure properly.
Tarmac has to bond to itself as it is laid, so once Carlow Builders starts a run it keeps going to the end of the lane or a natural cutoff. Stopping mid-run leaves a joining line, so we plan the stops on a long lane first.
The Build-Up Under A Tarmac Laneway
How deep we go depends on what uses the lane. Domestic traffic in Newbridge takes 75-100mm of tarmac over around 150mm of 804. Heavy vehicles take around 150mm over 200-300mm, since the sub-base always goes up with the surface.
The base is machine rolled with a vibrating roller of around 20 ton, then the tarmac is laid hot in two courses, a base (binder) course and a surface (wearing) course of SMA, stone mastic asphalt.
An unretained edge is the first place tarmac fails, so our tarmac contractors retain the lane with edging kerbs or a border. Where neither is possible, the edge is chamfered down hard to seal the side.
What Goes With A Tarmac Laneway
Standard tarmac is not permeable, so we set the falls to run surface water into channel drains. Those connect to the existing drainage or to a soakaway, an area dug out and filled with soakaway crates, gravel and permeable stone.
Where a laneway in Newbridge meets the public road, we set an edging kerb to take the load of every car coming off the road onto the lane. Without one, dips and bumps form along that entrance line.
Block paving and granite borders and aprons are very common with tarmac now. They are fitted at the preparation stage, before the tarmac is laid.
Tarmac Laneway Questions We Get Asked In Newbridge
Will a tarmac laneway flood the road?
No. On a laneway in Newbridge we set the falls so the water runs to a drain or a soakaway on the property rather than out onto the road.
How much fall does a tarmac laneway need?
Around 1:40, roughly 25mm for every metre. Less than that and the water starts to sit instead of running off, and water sitting on a lane in October is ice in January.
How does a tarmac laneway cope with winter?
Tarmac is rock hard in winter, but it can get slippy, more so on a slope. A slope is no issue when the tarmac is retained properly. Where a lane is very steep, we split it into two or three gentler slopes by extending the run.
Book A Tarmac Laneway Quote In Newbridge
Call 02 222 2222 to book a free estimate with our tarmac contractors in Newbridge. Every tarmac laneway we lay is guaranteed.
Where the lane ties into a driveway at the house, Carlow Builders lays tarmac driveways too, so ask about both when you call.
