Correct drainage is essential to protect buildings structures from moisture erosion and damage. According to the IRC, the min slope for drainage is a fall of six inches or more within 10 feet of a building (or 5% grade). Dra… See more

When measuring a stair, you must measure from its lowest point to the highest point. But you wouldn’t apply that to measuring your patio. Specifically, your patio’s slope is defined from its highest point, commonly the point cl… See more

Although a contractor’s level or laser level might help decide and set the slope, a line level and string line are still must-haves. You should get help from local utilities to ensure there are no lines where you want to put a pat… See more

One day, if you see that your patio collects or lets water flow back, they are a sign that you need to re-slope it. Fixing your improper-slope patio does not always require removing your entire work area, re-sloping the … See more