What impervious surface means
An impervious surface is one water cannot soak through, such as roofs, driveways, patios and most pavement.
Where it matters on a general contracting job
Many towns cap how much of a lot can be impervious, and new patios or driveways count against it. Permeable pavers can be the way to fit a project under the limit.
Work it out
- Licensing: General contractor license rules by state
- Tools, templates and guides: Free general contracting resources