Many factors, or a combination of factors could explain this. Bricks shift or sink primarily because:
- They were installed at a time of year when there was a lot of moisture in the ground (such as early spring or late autumn) and, with time, shift or sink a little
- Over a period of time, constant pressure and heavy traffic on any given area can cause some shifting or sinking
- Improper installation, such as a weak granular stone base that was not properly compacted with the appropriate tools is often the cause.
It will last a lifetime (maybe even a few of them)! The brick is built to be incredible durable so that it remains beautiful for generations to come.
The best way to protect your interlock is by sealing it with a special clear sealer at an approximate cost of $1.00 per square foot. This includes pressuring washing the bricks to remove any weed or grass, re-sanding between the bricks, and finally applying the sealer. In addition to protecting your investment, the sealer will inhibit further weed growth and prevent the porous bricks from becoming stained. The bricks will, at the same time, turn slighter darker, for an esthetically-pleasing finish.
To get a shinier, darker coloured finish, you must apply a sealer. See the previous question for a more detailed description and cost estimate.
You can get this done using a variety of methods. You can:
- Pour a soap and water solution on the weeds
- Pour bleach or a weed killer directly on the weeds
- Remove them using a pressure washer (A more environmentally-conscious solution and a service that Epic can provide)
- Pull them out by hand or with a gardening tool
- Have your installer install a geotextile liner directly under the brick to inhibit weed growth
The best approach to prevent weed growth is to apply a sealer on the bricks. It goes a long way toward inhibiting the growth of weeds and various grasses. There is, of course, no 100% effective solution, but applying a sealer is pretty effective. It will significantly reduce visible growth.
Commercially available cleaners can remove paint. You can get some at a local home improvement store. Because bricks are porous, you might find that the only way to remove paint is to sandblast it off.
Acting fast is critical for best results. Start by using a product that absorbs the oil as much as possible, then apply a commercially available cleaner that can remove oil. You can get some at a local home improvement store. Because bricks are porous, you might find that the only way to remove oil is to replace the stained bricks.
For the best possible results, we recommend that you add sand between the bricks once a year. Simply brush the sand between the visible cracks, and remove any weed or grass growth. To inhibit the growth of weeds, you can consider the application of a lasting silicone sealer.
Our harsh winters and vast temperature variations year round can take a toll on your interlock. Consequently, it is not uncommon for a brick to occasionally come loose. To fix the problem, purchase a tube of interlocking brick adhesive at a local home improvement store (it looks like caulking) and squeeze it under the brick.
Our harsh winters and vast temperature variations year round can take a toll on your interlock. Consequently, it is not uncommon for a capping stone to occasionally come loose. To fix the problem, purchase a tube of interlocking brick adhesive at a local home improvement store (it looks like caulking) and squeeze it under the capping stone.
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