A tool designed to determine the proper slope for effective drainage of a paved outdoor area typically adjacent to a house. This involves calculating the vertical drop (rise) over a horizontal distance (run), often expressed as a ratio or percentage. For instance, a 1/4-inch drop per foot ensures water flows away from the structure, preventing pooling and potential damage. This slope is also crucial for adhering to building codes and maximizing the lifespan of the patio.
Proper drainage is paramount for the longevity and functionality of patios. Preventing water accumulation mitigates issues like foundation damage, moss growth, and surface erosion. Historically, achieving correct drainage relied on estimations and hands-on adjustments. Modern tools, including online resources and specialized software, simplify this process, offering precision and reducing the chance of costly errors. This ensures compliance with building regulations and creates a safer, more enjoyable outdoor space.
