The DynaDome pool enclosures utilize all stainless steel fasteners and aircraft quality extruded aluminum. There is no material being used on these pool enclosures that will be affected by the chemicals or condensation from the water. The roof glazing is 16mm multi-wall polycarbonate sheet (not 10mm or less, like most other manufacturers). The side and end wall glazing is either 16mm multi-wall polycarbonate sheet, or transparent Lexan. The DynaDome aluminum material is coated with an anodizing process, and not the popular powder coating available with most other pool enclosures.