Pros and cons of underdeck drainage system
That's right. Underdeck drainage system is another way to solve the problem. The pros of underdeck drainage system are the installation is easier than roof deck and the cost is cheaper. I think if you want to make your project easier and save your money, underdeck drainage system is a solution. However, I think there are some problems of underdeck drainage system that you should consider. When you install an underdeck drainage system, you have to make a smoothly graded surface that slopes toward the courtyard. Otherwise, more and more water will accumulate to become a pond under your deck. Then, it will benefit for vegetation and algae growth. Also, the life of your decking material may be suffered. Therefore, although it is easier to install a underdeck drainage system than roof deck, yet make sure to have a smooth surface and the slope. Hope I can help.