N677NC

The private pilot was attempting to land an experimental airplane on a grass runway. As the airplane descended to treetop level on final approach, it encountered a sudden decrease in airspeed and a rapid rate of descent. After arresting the descent the airplane caught a gust of wind and the left wing rose almost vertically and pushed the airplane to the right. The pilot was able to correct the right roll; however, the airplane impacted a fence and continued about 10 feet before colliding with the side of a hangar resulting in substantial damage to the airplane. The pilot reported no pre-impact mechanical malfunctions or failures that would preclude normal operations, and stated that he should have attempted to land with a faster airspeed due to the gusty wind conditions.