Tapered Insulation Part Two: Design Elements And Considerations
Ponding water, defined as water that remains standing on a roof more than 48 hours after rainfall, is one of the biggest issues that come with having a flat roof. Flat roofs are advantageous for a number of reasons, and are also often the only choice for commercial structures. These roofs offer exceptional protection from the elements if the membrane and insulation layers are installed correctly and efficiently, and this by definition means that rainwater is directed into appropriate drainage systems such as drains, scuppers and/or gutters.
