When you are having a contractor pour a concrete sidewalk for you at your home, you might wonder to yourself why they are adding a slab expansion joint to the walk at measured intervals. Thre are actually many proven reasons why this is done.
Prevent Damage
When expansion joints are used, they prevent cracking and buckling from occurring. As long as the sealed joints are well-maintained, they will last for a very long period of time without the worry of damage caused by extreme temperature fluctuations.
Resistant To Water
Once the seals are in place, they will stop any water or moisture from entering the space in between the pieces of concrete. This is a crucial function of these seals and they must be maintained for them to work correctly.
Great ROI
While placing the joints does cost a bit of money upfront, it is significantly cheaper than having to repair or replace your sidewalk every few years because it has suffered cracks from too much expansion. The joints will ease any expansion that occurs and keep the slabs of concrete safe.
Safety First
A sidewalk with well-maintained seals will be of great benefit safety-wise. It greatly reduces the chance of tripping on buckled concrete. In fact, when you report to your homeowner’s insurance that you have placed a slab expansion joint in between each concrete slab, your insurance rates may actually go down.
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