Published Sunday 24th of November 2013 // Updated Thursday 23rd of February 2017
One of the biggest benefits to concrete is its typical lack of flammability. While it can catch on fire in special circumstances, it is not as susceptible to flames as a substance like wood or vinyl, which flare up in a matter of minutes. This quality of concrete makes it an attractive choice for construction and use in basements and for floors, but it also makes it a great choice for someone looking to build and install an outdoor fireplace.
Outdoor fireplaces are great gathering spots for families and friends, helping to provide a pleasing aesthetic and physical atmosphere for a night of bonding. Many fireplaces are increasingly being constructed from concrete, due to that materials excellent properties of strength, durability, and longevity. However, one step many homeowners are forgetting is to seal their outdoor fireplaces. Concrete outdoor fireplaces are located directly in the elements with no reprieve from the rain, snow, or other such sources of wear that can degrade and corrupt your concrete over time. While outdoor fireplaces are not integral to the structural integrity of your home, you certainly do not want to have to replace the fireplace constantly due to preventable damage.
If your fireplace is made out of a material like brick, concrete or stone you will want to treat it with a silane/siloxane blend sealer like Siloxa-Tek 8500. The Siloxa-Tek 8500 will protect the surface of your substrate repelling water and snow melt from entering the material, thereby increasing the fireplaces longevity.