This book considers the composition, production, testing methods and application of modern cellulose fibre cement boards (FCB). FCB replaced widespread but now illegal and harmful asbestos building products. Despite the complexity of the FCB fabrication process, the material is currently widely implemented. In the first chapter, the basic idea and microstructure of cellulose FCB is described, with the next chapter concerned with the process of the industrial fabrication of the composite material. The third chapter explores both the basic testing procedures described in international standards and more novel methods. The last section of the book deals with the practical applications of the product, which are illustrated by many existing examples. The pictures of the aesthetical façades of building as well as the remarks on FCB exploitation and economics of implementation of the product are included here. The book will be valuable for researchers, architects, and both graduate and post-graduate students, as well as practicing engineers concerned with building technology.