A burn resistant barrier composite for application to a roof or wall of a building incorporates a metal foil in a woven fabric to improve burn through resistance. The barrier composite may be a roof underlayment or a housewrap. A barrier composite incorporates a polymer film attached to a metal foil that is cut into tapes and then woven into a woven fabric. The polymer film may be a tensilized polymer film that has increase modulus through orienting the film. The space between the tapes in the woven fabric provides permeability for moisture vapor. An additional barrier layer may be attached to the woven fabric to prevent moisture and/or water transfer through the barrier composite or to enable moisture vapor transmission through the barrier composite. An adhesive may be attached to the barrier composite to enable direct adhesion to a wall or roof surface.