TRYLON's 4.618.5101.001 STG flat roof mount is designed for use with standard STG guyed tower sections. The hot-dip galvanized steel mount has three bolts that feed into the splice spigots of the STG section. Once the tower sections are installed on the flat roof mount, the mount is to be secured to the roof or other flat surface. Hardware to connect base to roof is not included in this kit. This base is to be used with guyed applications only.BRBRAt 70 mph, use only 1/2 the rated antenna area published for self-support towers.BRBRAt 90 mph, use only 1/3 the rated antenna area published for self-supporting towers.BRBRAt 110 mph, do not use this mount.