Are Brick Pavers Permeable?
Posted in BlogOccasionally I am asked the question: are brick pavers permeable? Presumably it is asked by some homeowner who has had issues with water drainage around his or her home in the past, and they want to make sure they won’t have issues in the future.
To this I answer – yes, to a certain extent! Given the proper instruction and the proper materials, brick pavers are more permeable than many other hardscape options, including asphalt and concrete, but less permeable than yet others.
So why does this matter, anyway?
Why Brick Pavers Are Permeable
First, why are brick pavers permeable? The brick itself won’t let water drain through it with any amount of speed, but it is not the brick itself that is permeable. It’s the joints! The joints that lie between each and every paver are (generally) made out of sand, bluestone screenings, or other materials. This material, though tightly compacted, can allow water to drain. This means that the surface of your pavers will allow some water to drain through the surface.
That is why it’s important that brick pavers be installed correctly. The joint material needs to be porous so that it can allow any collected water on top to drain through. If you use mortar or some other solid material that will get too hard, it will not allow water to drain, and you may have flooding issues. That’s why I suggest using sand or polymeric sand to make sure that you maintain the porous nature of your installation!
So Brick Pavers Are Permeable – Why Does This Matter?
Permeability is not just important for preserving your home and landscape. It’s also important for the environment and for proper draining of water in municipal sewers. If all the water that rains down runs off into the sewers, you may have issues with blockups and floods anyway! So making sure that some of that water does find its way back into the ground is a great relief for many homeowners and residents.
One Final Remark on This Issue
It should be noted that brick pavers are as permeable as other options such as loose stone installations or true “permeable pavers,” also known as grass pavers. But at least you know that you will have some ways to drain water off the top of your project. Still, you’ll want to make sure that the application is installed correctly so that the grading sends water to the directions you want to send it – i.e. into a drain or other place where water won’t do any damage. If the project is pitched towards sensitive areas – such as your home! – you may still have issues with water damage, especially during heavy rain.



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