Outdoor carpet is a practical concrete balcony covering, offering comfort, a superior slip-resistant surface, and aesthetic benefits. Outdoor carpet on properly sealed, good quality concrete should not contribute to the deterioration of outdoor concrete balconies.
Proper use of a high quality concrete sealer can reduce the deterioration caused by high alkalinity or continued moist conditions. A sealant should be applied to all exposed concrete balcony surfaces, whether a covering is installed or not, because balcony surfaces, edges, and supports exposed to the elements are likely targets for deterioration. If beach sand, or sand with a high salt content, was used in the concrete mixture, deterioration may occur from within, and sealing the surface will not prevent this occurrence.
