It is highly recommended that you use a quality VINYL RAIN FLY or POLY RAIN FLY over your tent. When used regularly, a quality rain fly will protect your tent from UV, rain, dirt and debris, tree sap, and will extend the life of the fabric. Our rain flys allow for 18" drip flaps on the lower wall sides and a 3" drip flap on the overcast peak sides. Rope and tensioners for the rain flys are not included. Extended length rain flys can also be used as an entryway porch cover.