Frequently Asked Questions
Will weeds grow between my pavers?
Weeds and grass result from seeds or spores blowing into, and lodging in, the joint sand. This can be minimized by using a Techniseal polymeric sand or by sealing the pavers with a joint stabilizing sealer or mixing a pre-emergent granular weedkiller in the joint sand. If weeds do appear, a spot vegetation killer (such as Round-Up™) can be used and will not damage the pavers.
What are the advantages of sealing my pavers?
Depending upon the sealers, they can offer three advantages: they help resist stains, enhance the color, and bind the sand in the joints to make it difficult for weeds to germinate. Sealers, however, are topical products and must be reapplied regularly (generally every 3-5 years). Sealers may be water-based or solvent-based as long as they are low VOC and compliant with government regulations.
What can I do if my pavers are stained or damaged?
One of the advantages of pavers is that individual units can be removed and replaced in these situations. Remove the sand around the paver and then use two flat head screwdrivers to lift the paver out. Rocking the paver gently in a back-and-forth motion will facilitate removal.
Why are they called interlocking concrete pavers?
It is the system that makes them interlocking concrete pavers, not necessarily the shape. When installed properly, the combination of the pavers, bedding sand, edge restraint, and joint sand causes them to interlock, allowing them to work as a unified, flexible pavement.
Can pavers be used for my driveway?
Absolutely! For residential driveways, 10″-12″ of compacted dense graded aggregate base material is recommended. A standard 2 3/8″ thick paver can be used for light vehicular (cars and pickup trucks) applications.
How do pavers compare with stamped concrete?
Patterned concrete pavements are merely slabs of concrete that are embossed with a pattern. Therefore, they are prone to the same problems, namely cracking. Stamped concrete requires expansion joints every 10 feet or so, which are very distracting in some patterns. Also, unlike pavers, patterned concrete pavements don’t allow access to underground utilities or the ability to make repairs.
How can I remove moss or mold from my pavers?
Try Clorox® diluted in water (10 parts water to one part Clorox). Be careful not to get it on other plant material. Keep in mind that there is nothing that will keep it from growing back if it’s in a shady, damp area. For a more permanent solution, you will need to correct the moisture and shade problems that are encouraging the moss or mold.
What is the white deposit I see on some paver installations?
You are probably referring to EFFLORESCENCE, a natural and common occurrence in concrete and brick products. Efflorescence is the result of natural salts in the materials used in production migrating to the surface of the pavers. This is not a defect nor harmful to the pavers, and will usually weather away with time. Although it is best to allow a year or more for efflorescence to weather away, if you don’t want to wait, there are products to remove it. Do not use efflorescence cleaners repeatedly. Once the pavers are cleaned, it is recommended that they be sealed.
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