When many people install sod, they find that for some reason, it just doesn't root exactly the way that they hoped that it would, or they don't get the results they had imagined. There are usually a few things that have happened, or rather, didn't happen prior to installing the sod that may have played a factor in this. Consider this a sort of Orlando sod installation troubleshoot guide.
While sod can be installed almost anywhere, there may occasionally be factors that can pose a potential problem. This mostly lies in selecting the wrong sort of sod for the location and can easily be circumvented by finding out what selection of grasses will work best for the location that you wish to install the sod, before you order it.
There are a number of varieties that work really well in shady areas, and more that do well in direct sunlight. Finding out which will work best for your needs will get you started on the right foot. Also, you have to make sure that the site and soil is prepared fully prior to installation via making sure it has been raked up, the old turf removed, the soil evened, fertilized and moistened appropriately.
Another consideration is existing issues with the soil itself. It is not really needed to apply topsoil in order to install sod, and usually simply preparing the existing soil and fertilizing it will be enough. If there are rocks, a weed problem, or other issues such as that, you have to take care of them prior to laying new sod. Make sure that you have gotten the weeds under control and unrooted them as much as you can, but do not use a chemical weed killer on the soil you are installing your sod on top of.
Pluck out rocks, debris and other issues with the existing soil as you rake and even the soil, and this will help a great deal in preventing the weeds from cropping up through the new turf itself. In cases where clay soil is an issue, you may be able to try working some organic matter into that, but avoid using sand as all it will do is further strengthen the clay.
Also, prior to installing your Florida sod make sure that you have corrected any drainage issues that the area has. Many poor root systems happened because the turfgrass was unable to drain the excess water quickly enough and this caused the grass itself to have weak, poor growth. You may find that in some cases, building a drainage system may be your best bet, to ensure that the run off goes somewhere else and does not impact your new turf.
Carefully protect any trees on your property- many people have found that installing sod without the proper precaution has caused damage to, or even the death of their trees. Putting in a well will not be enough, so make sure that you are completely protecting them while you install the sod itself.