helps keep the building on the ground i e similar to the effect of a rear spoiler on an automobile frb flexible and unique modular units can be used to construct anything from a single leisure home or storage unit to a large emergency hospital complex or emergency re housing due to a disaster each unit can sleep up to 10 people principally designed for emergency accommodation for peace keepers and military requirements an frb 39 s applications are endless fig1 a and fig1 b show perspective views of a single frb in accordance with an embodiment of the present invention the single building comprises two end units 102 including an outer wall 106 an inner wall 108 and a roof 104 among other things fig2 shows a side view of the end unit 102 in accordance with an embodiment of the present invention the roof 104 and the base 110 or floor have the same dimensions however the outer wall 106 and the inner wall 108 do not have the same dimensions the height of the inner wall 108 is slightly greater than the height of the outer wall 106 angle u03b8 is set to be about 90 degrees while angle u03c6 is set to be less than 90 degrees specifically between about.