However, as projects become larger than 50,000 square feet, the lower price of concrete starts to offset tilt-up construction's fixed costs and this method becomes cost-competitive with a metal building.ccording to the Tilt-up Concrete Association, at least 10,000 buildings are constructed annually that enclose more than 650 million square feet. Tilt-up concrete construction is not new; it has been in use for well over a century.
A castle (from Latin: castellum) is a type of fortified structure built in Europe and the Middle East during the Middle Ages by nobility.Scholars debate the scope of the word castle, but usually consider it to be the private fortified residence of a lord or noble.he word castle is derived from the Latin word castellum which is a diminutive of the word castrum, meaning fortified place. The Old English castel, Old French castel or chastel, French chateau, ChÃ¢teau spanish, Castillo italian, castello and a number of words in other languages also derive from. castellum
a castle served as fortress a residence for nobility and as a means of preserving the rigid social hierarchy of the middle ages castles in medieval times build a medieval castle make your own coat of arms large stone castles were built in europe from about the 1100 s to about the 1500 sastles in medieval times large stone castles were built in europe from about the 1100 s to about the 1500 s these huge buildings served not only to defend the country from foreign invaders but as the basic tool in preserving the king s and the nobles power over the land