The steel-reinforced, heavy-duty construction of a Outdoor Storage Shed can withstand most of Mother Nature’s wear and tear, but for extreme conditions, this kit may be necessary. If you live in an area with severe winds, rain, or snow, the Extreme Weather Kit is a perfect addition to your shed. The kit is designed for most 8 ft. wide sheds and provides reinforcement for up to three roof trusses. The Extreme Weather Kit includes steel reinforcement channels, roof truss supports, additional door latches, and floor anchor brackets. *Extreme Weather Kit does not work on 10 ft. x 8 ft. or 15 ft. x 8 ft. Garden Buildings. Please call customer service to verify if your shed will be compatible with this kit.*