A joint tape for drywall, comprising: a substrate layer having an elongate shape in a lengthwise direction and a narrow width in a transverse direction to form a strip, and a covering layer disposed in bonding relation on the substrate layer, characterized in that: the substrate layer is made from substrate fibers, the substrate layer being flexible in the lengthwise direction and also flexible in the transverse direction that is perpendicular to the lengthwise direction to allow the substrate layer to bend in the lengthwise and transverse directions; and the covering layer is made from covering fibers, the covering fibers including transversely extending fibers extending parallel to one another along the transverse direction, the transversely extending fibers being rigid in the transverse direction to resist bending in the transverse direction and configured to withstand compressive forces applied generally in the transverse direction and shear stresses applied generally along the transverse direction; wherein the joint tape is flexible in the lengthwise direction, thus permitting the joint tape to be rolled into a roll, and rigid in the transverse direction to withstand compressive stresses applied in the transverse direction. a substrate layer having an elongate shape in a lengthwise direction and a narrow width in a transverse direction to form a strip, and a covering layer disposed in bonding relation on the substrate layer, characterized in that: the substrate layer is made from substrate fibers, the substrate layer being flexible in the lengthwise direction and also flexible in the transverse direction that is perpendicular to the lengthwise direction to allow the substrate layer to bend in the lengthwise and transverse directions; and the covering layer is made from covering fibers, the covering fibers including transversely extending fibers extending parallel to one another along the transverse direction, the transversely extending fibers being rigid in the transverse direction to resist bending in the transverse direction and configured to withstand compressive forces applied generally in the transverse direction and shear stresses applied generally along the transverse direction; wherein the joint tape is flexible in the lengthwise direction, thus permitting the joint tape to be rolled into a roll, and rigid in the transverse direction to withstand compressive stresses applied in the transverse direction. the substrate layer is made from substrate fibers, the substrate layer being flexible in the lengthwise direction and also flexible in the transverse direction that is perpendicular to the lengthwise direction to allow the substrate layer to bend in the lengthwise and transverse directions; and the covering layer is made from covering fibers, the covering fibers including transversely extending fibers extending parallel to one another along the transverse direction, the transversely extending fibers being rigid in the transverse direction to resist bending in the transverse direction and configured to withstand compressive forces applied generally in the transverse direction and shear stresses applied generally along the transverse direction; wherein the joint tape is flexible in the lengthwise direction, thus permitting the joint tape to be rolled into a roll, and rigid in the transverse direction to withstand compressive stresses applied in the transverse direction.