Thermal Pennsylvania Bluestone Paver are known worldwide for their strength, low maintenance, and durability in harsh environments. Not to mention their unique and distinguished color that is found nowhere else in the world. Bluestone Pavers’ superior durability are especially well suited for climates with harsher winters. Where the freezing and thawing can take a serious toll on less dense and lower quality types of rock. They also do very well in the heat and when exposed to water. Bluestone pavers are most commonly used for patios, wallways, and pools.