Paver Sealing and Cleaning
Paver Vulnerabilities & How to Prevent Damage
The biggest vulnerability of flagstone pavers is its tendency to develop water stains. The damage can be even more severe if the moisture contains minerals, or is alkaline. As such, pool decks, pond walkways, and patios are especially susceptible. Stained flagstone does not need to be replaced in most cases, but requires a professional, gentle soda blasting treatment before a protective sealant is applied to prevent future damage.
Because of its versatility and generally inexpensive cost, flagstone is a very popular type of sandstone. But, like all other types of stone, flagstone is vulnerable to wear and tear caused by the natural elements.
What Can Damage Pavers and Flagstone Decks, Pools, and Tiles?
- Water Impregnation
- Calcium Deposits
- Mold & Mildew
- Harsh Cleaning Chemicals
- Prolonged Sun Exposure
- Extreme Temperature Variations
- Bird Feces
- Dog & Pet Waste
Flagstone gravestones are susceptible to water damage, sun damage, and erosion from bird feces. Outdoor flagstone patios and walls are also vulnerable to the natural elements. Flagstone pool decks are vulnerable to the elements in addition to chlorine or saltwater, and must be professionally treated and cleaned before a protective sealant is applied to protect it against its unique environmental elements.
Types of Flagstone Damage
- Mold & Mildew Growth
Flagstone is used for a variety of different needs, ranging from gravestones to patios, stone walls to pool decks. Flagstone is very vulnerable to a type of erosion known as spalling. Spalling occurs when the flagstone is overexposed to water, and erosion of the bonding molecules occurs. As a result, the flagstone spalls, and begins to break off in sandy and gritty pieces.
The Benefits of Sealing Pavers
Flagstone that is outdoors and is exposed to wind, rain, saltwater, chlorine, or any other harsh materials and/or natural elements need to be sealed for optimal longevity. Because flagstone is a porous material, a sealer will fill in the pores in the stone and provide it with a gorgeous finish. A matte finish is typically ideal, as this preserves the natural beauty of the stone. However, either finish type – matte or glossy – will provide the flagstone with the protection from moisture and staining that it needs.