Finding blisters or even bubbles on tennis court surfaces is a somewhat common problem, particularly on concrete substrates. Many court owners are baffled by the actual fact that sometimes the blisters can be found along with other times they are not. The first thing they do is blame the resurfacing contractor, as it was okay before, and so the problem is going on after the new surface was applied.
Acrylic tennis court surfaces are semi permeable, or perhaps breathable, and allow small amounts of moisture vapor to transmit through them from beneath the slab. However, if there are copious amounts of moisture trying to get through, it is able to create this particular situation. When a tennis or perhaps basketball court wasn’t made with a proper perimeter drainage system to divert rain water away, a lot of the moisture is able to end up directly beneath the court. When the sun heats up the surface, the water is drawn upwards in a vapor form. This creates hydrostatic pressure, and can break the bond between the coating and concrete surface or even the asphalt. The consequence is multiple bubbles and blisters on the court surface. Concrete surfaces should even have a 10 mil vapor barrier installed once the court is built, to prevent this from occurring. Unlike asphalt, concrete is extremely dense and has a tendency to create higher levels of hydrostatic pressure. This is why the trouble happens more frequently on concrete courts.
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Other than, and mixed with poor drainage, surface blisters and bubbles also can become a concern when too many coats of surfacing material are applied. This may occur after many years of resurfacing cycles have been performed. When a tennis court is resurfaced, there are about 3 to ten coats of surfacing material applied, depending on whether it is a hard court or a cushioned tennis court surface. The standard resurfacing cycle should come about every 4 to seven years. At some point, around the fifth or fourth resurfacing, the owner might want to consider having the tennis court contractor remove the existing coatings, back down on the pavement. This will help to to lower the potential for bubbles or blisters, breathability issues and. Also, tennis court coatings contain, or are job mixed with silica sand for filling voids and texturing the playing surface. This creates non-slip safety, and also sets the pace of the game. Sand also breaks the surface tension of each coating layer and allows it breathe better. Consequently, it is proposed to specify sand into each coating of material.
In some rare cases, occasional bubbles may be visible on a sport surface with proper drainage. This is most likely to happen during extreme weather patterns that bring continuous rains and over burden drainage systems. If the surface it not subjected to this problem long term, the bubbles usually go down and disappear without further difficulties. The random bubble may be injected with acrylic latex to re adhere the coating to the pavement surface, if needed. A sport surfacing professional is able to take care of this with little cost.
When having a sport court built, see to it that the tennis court construction company is familiar with the American Sports Builders Association guidelines for proper sport construction. The best way to ensure this is by contacting a manufacturer of tennis court resurfacing products as well as asking them for qualified tennis court contractors in your area.