mud in the ground and clay.
Yes they were, because they built some of the first castles, like motte and bailey castles by hand and with only a few tools to help them.
Medieval castles had no steam room.
portcullises are medieval as many medieval castles are found with them such as Warwick castle
The motte and bailey castle and the concentric castle.
Medieval castles were usually made of stone, often held together with mortar. Some castles were made of wood, and earth was also used in the construction of some castle defenses and walls.
All of them lived in several castles.
a u shaped castle
Yes, there were hauted castles. Some of the castles were the Tower of London, Leeds Castle and many more.
Castles were built primarily for defense.
In medieval castles they used fireplaces, windows, oil lamps, and candles for lighting. Torches were also used for lighting in castles.
Round Keep Castles were a type of castle during the medieval times. They were not built on a motte, unlike shell keeps. They were an adaptation of the square keep castles except they had round or polygonal walls. Medieval builders couldn't make the round keep castles as big as the square keep castles, so they were often cramped for space.
There were various castle weaknesses. It depends what castle type you are talking about. Wooden castles were used, but had the obvious downfall of no fire resistance, so stone was used instead. Then, because the corners of their square castles were the weakest parts, the builders made circular castles. v3n0m531