|
 
|
|
ASPHALT OVERLAYS
The following is some basic information that may be useful if you are
interested in an overlay or be a candidate for an overlay.
- What is it . . .
- A pavement overlay is the application of a layer of hot bituminous
paving to an existing paved residential driveway, commercial parking
lot, or road that has deteriorated from years of wear from traffic and
the environment.
- Why is it done . . .
- An overlay adds structural capacity, riding comfort and skid
resistance, which adds to the good look and safety. Smooth road
surfaces also decrease vehicle maintenance costs and improve fuel
economy. Pavement overlays help reduce traffic noise, which is
important in urban developments. New overlays are aesthetically
pleasing, as well as structurally sound and cost efficient.
- Pavement deterioration is cumulative. Pavements generally
deteriorate at an ever increasing rate. Factors including,
weather, traffic impacts, frequency of maintenance, etc. all
contribute to a asphalt's longevity.
- Routine maintenance is essential ! When a paved road, parking
lot, or residential driveway reaches about 75% of its service life
(10 to 20 years, depending on base stone and asphalt thickness),
deterioration accelerates. If routine maintenance is not performed
restoration costs are four to five times higher. An overlay can
give you a new surface for a fraction of the cost of starting
over.
- What can be expected . . .
- During your residential driveway project, you may be asked to remove
your vehicles from your garage, or not drive on it, for the next 2
following days. While traffic on roadways is commonly allowed access
soon after paving, it is your driveway. Access to the motoring public
is the key reason for opening roadways sooner.
- On commercial-type overlay projects, access issues should be
agreed upon before the start of your project. We can work with any
access related concerns, from limited to full access. Please
discuss this with your project manager.
- During a road overlay project, residents must remove all
vehicles from the street. If curb and gutter is present the old
pavement will be milled along each edge so that when the overlay
is applied the surface of the new pavement is level with the
gutter. The street is then sprayed with a thin layer of asphalt
called a tack coat so that the new pavement will stick to the old
pavement. The overlay is then applied. Traffic should be kept off
the new pavement for at least four hours after it is laid.
- If your project has a stable base stone course, the asphalt is
basically structurally sound, and water drainage (pitch) poses no
particular problems, it should be a candidate for overlay. Contact
Us with more questions about your particular project.
- Key Benefits
|