The design for the swimming pool roof reflects LF unique design advantages. Firstly, this design is in strict accordance with the Philippine design standard NSCP which has high requirements about the wind load data. The wind load data we choose reaches to 250km/h, so through Typhoon such as Haiyan, our structure is still very strong. Secondly, in the terms of the support part, we adopt a special treatment to lower the reaction data, thereby reducing the base cost. Thirdly, the owner wants to lengthen the structure on the base, after our detailed calculation and analysis, we lengthen the structure in the middle part, not at the end part. Fourthly, we adopt the curved arc purlin which makes the surface more smooth and beautiful. The smooth surface is LF patent.