When it comes to pouring concrete, creating a slope is essential for proper drainage from the surface. If done incorrectly, your concrete can be prone to puddles and pooling which can cause damage over time. With the right approach, you can ensure that your concrete slopes correctly so that water flows away safely. Follow these 7 tips for how to slope concrete for drainage.

  1. Measure and Mark Slope Height

The first step is to measure the height of the slope you need for proper drainage, then mark it with a chalk line or spray paint. This will help ensure that your concrete slopes at the correct angle, so take your time and make sure it’s accurate.

  1. Create the Formwork

The next step is to create the formwork, which is a temporary wooden structure that will hold your concrete in place once it’s poured. Using stakes and 2x4s, create a frame that will match the slope you measured earlier. Make sure all corners are square and the edges are straight before pouring the concrete.

  1. Prepare the Ground

Once the formwork is in place, you’ll need to prepare the ground below it for pouring. Remove any rocks or debris and compact the soil before laying down a layer of gravel. This will provide an even surface on which your concrete can sit while also preventing moisture from entering into the slab.

  1. Install a Slope Board

If you’re planning on creating a large slope, it’s important to install a slope board. This is essentially a two-by four that runs along the formwork at the desired height of your slope and can be used as a reference while pouring.

  1. Level the Slab

Once everything is in place, you can begin pouring your concrete. Be sure to check each corner of the formwork for levelness before using a long straight edge to ensure that the surface is even throughout. You may need to adjust the slope board slightly as you’re pouring in order to achieve the desired angle.

  1. Smooth Out Edges

Finally, use a trowel to smooth out any sharp edges or uneven spots. This will ensure that there’s no tripping hazard and also prevent water from pooling along the surface of your concrete.

  1. Let it Cure

Once you’re finished, let your concrete cure for at least 24 hours before walking on it or adding any additional weight. Be sure to keep the area covered and dampen it periodically throughout this time to prevent cracking.

Following these 7 tips will help ensure that your concrete is sloped properly for drainage. With the right approach, you can avoid standing water and potential damage from eroding soil or flooding. Properly sloped concrete makes a great addition to any landscape or outdoor living space, so take your time and make sure you get it done right.