A special form of reinforced concrete, ferrocement consists of a thin section of cement mortar incorporating a high percentage of reinforcement in the form of multiple layers of light mesh. Expanded metal, woven mesh and welded mesh have been used. Although most of this reinforcement has been steel thus far, some development work has been done with woven fiberglass reinforcement. It therefore seems appropriate to expand the definition of ferrocement to included glass or other suitable fiber reinforcement as well as steel so that such composite mortars may be regarded as ferrocement also, in spite of any semantic difficulty with "ferro" in the name. Properly made, ferrocement is a high-quality material whose simple constituents and fabrication process make it usable for many construction purposes. There are five basic steps in the fabrication process: (1) the desired shape is outlined by a framing system; (2) layers of wire mesh and reinforcing bars are laid over the frame and tightly bound together; (3) mortar is plastered into the layers of mesh and rods; (4) next comes a period of moist curing; (5) finally the framing system is removed unless it has been designed to become a permanent part of the internal support. Materials for ferrocement are relatively low in cost but the process is highly labor-intensive and this has been a special aspect of its attraction in the developing nations. However, study of the advantageous structural properties of ferrocement suggest that its uses may be extended in highly developed countries with industrialized production techniques devised for its fabrication. Factory-produced tanks and utility buildings of ferrocement are already commonplace in New Zealand and housing modules have been developed in the United States.