shelters are made of metal and plastic and you get a curved metal panel and join them together to make the roof and the sides of the shelter
metal
Re-enforced concrete
there were 50-1000 public shelters (street shelters) during WWII
The Anderson Shelter was designed by William Paterson and Oscar Carl Kerrison in 1938. It was named after Sir John Anderson, who was responsible for air raid precautions during World War II, and it was Anderson who initiated the development of the shelter.
Morrison shelters were used in World War II as indoor air raid shelters designed to protect civilians from bomb blasts and shrapnel during air raids. Named after the then Minister of Home Security, Herbert Morrison, these shelters were typically made of metal and could be set up in homes, providing a safe space for families. They were intended for use in urban areas where the risk of bombing was high, offering a degree of safety within the home.
Morrison shelters were made of iron.
Anderson shelters were made of corrugated iron and Morrison shelters were made from steel panels.
Morrison shelters were made from sheets of steel.
5,000 flood shelters were made in Bangladesh
bomb shelters were made out of corigated iron with mud and grass covering it.
They were made out of iron mettle
pachacuti
yes ..
They were made mainly of stone.
The materials are birch trees, grass sheets (kind of like grassy blankets) and... that's it.
stainless steel
Mostly steel