Yes, you absolutely need to plan for the drainage of your patio pavers. Currently, wherever your patio will sit, water falls on the grass and is absorbed into the ground. That becomes a bit more complicated when there are patio pavers in the way. Water may not soak into your patios at all or may do so very slowly. This can create polling water or can direct water into your home or to your home’s foundation. Careful planning for drainage can prevent this. Here are some things you need to know about proper patio drainage.
The base materials that we place below patio pavers are intended to provide a flat, reliable surface that can create the most stable base for the patio. However, these materials are also chosen for their ability to assist with drainage. Gravel, with its large gaps between each individual rock, allows water to pass through it very quickly. This helps pull moisture away from the patio and towards the ground, and also gives the water more time to soak into the ground without disturbing the pavers.
The Slope of the Patio
The particular slope of the patio can make a big difference in how well it can drain water and where the water ends up. Patios that are sloped towards your home can direct water into it or allow it to pool near your foundation. Experienced patio contractors will slope the patio away from your home and also in a way that makes sense considering the specifics of your yard. They will take your slope and odds of erosion into account, directing water to where it will best be absorbed and be the least damaging.
On large patios, simply sloping the surface is not enough. You will need to add in dedicated drains that move water from under the patio away to a safe spot where it can be absorbed or further drained. Installing dedicated drains properly is a challenge that you should trust to the professionals. In order for the drains to be adjusted, the entire patio may need to be taken up and put back down.
Add a Drywell
In some situations, a dry well is warranted to control heavy rainfall or challenging drainage situations. These are essentially holes about the size of a barrel dug into the ground. They are will with gravel or sand that will hold water and give it more time to be properly absorbed into the ground. Proper placement of your drywell is critical to ensure its success.
In some situations, fully permeable pavers may be the best way for you to get proper drainage beneath your patio. If you do get permeable pavers installed, it is important not to seal them, as doing so will prevent water from soaking into them, defeating their whole purpose.
Not sure if your patio design will drain properly? Trust experts to help you design a patio that will move water effectively and protect your property.