Abstract: A new and improved fire block textile material comprising a carrier means and a textile material means that provides a cover in a first state and a fire block barrier in a second state. The textile material includes a wool yarn material formed as the face layer of the textile material which is convertible by heat from a fire into a fire barrier layer. Wool yarn material is connected to and carrier by an under construction material or carrier means. Said carrier means supports the wool yarn material in its first normal state as a textile and supports the charred portion of the wool yarn material in its second charred state as a fire block layer. The wool yarn material has a structure which permits it to bead on exposure to the flux of heat from a fire. The bead recedes or travels along the yarn away from the source of the heat while the fire barrier layer acts as a temporary fire block.