Older ones don't, but most new ones do have fans. You can easily cover over them by gluing 1/8th inch PVC sheeting over them using PVC glue. They sort of melt together becoming like a solid piece.
Be sure to disconnect the electrical connections for the fans so they dont over heat causing a fire. They are usually fastened by an electrical connector that can be unplugged.
The seams are well sealed and can take a lot of weight without breaching.
Be sure to disconnect the electrical connections for the fans so they dont over heat causing a fire. They are usually fastened by an electrical connector that can be unplugged.
The seams are well sealed and can take a lot of weight without breaching.
