Tents
A tent is a shelter, consisting of sheets of fabric or other material draped over or attached to a frame of poles and/or ropes. Some tent styles are free-standing, while others are attached to the ground using guy ropes tied to stakes (pegs). Tents were first used as portable homes by nomadic peoples, but today, their main application is for recreational camping. Modernistic tents are usually made of fire-retardant material.
A flysheet or rain fly (found only in double skin tents) is used to protect the inside of the tent from water. It is waterproof on the outside and also provides a surface to collect condensation on the inside. Condensation then runs down the walls to the ground. When a Tent flysheet is used, it is important that there be no contact with the inner tent it is protecting; this keeps the inner dry. 'Expedition' tents often have extra poles to remedy ensure that wind does not blow the two layers into contact.
