A slope percentage of 8% generally has what implications for commercial buildings?

A slope percentage of 8% is generally considered too steep for many commercial building applications, particularly in relation to site access, drainage, and usability of surfaces like sidewalks and driveways. Steeper slopes can pose accessibility challenges, making it difficult for individuals with mobility impairments to navigate.

For commercial buildings, especially those that prioritize accessibility and ease of navigation, maintaining slopes that are gentler—typically under 5%—is more desirable. This helps ensure compliance with regulations like the Americans with Disabilities Act (ADA), which aims to create accessible environments.

While there may be specific situations or design considerations where an 8% slope could be utilized (for example, in certain areas of parking lots), it is largely discouraged because it can lead to issues with erosion, drainage, and usability. This is why an 8% slope is generally viewed negatively in the context of design for commercial buildings.