Abstract + There are many tragic events accrued and are accruing presently in the fire seasons in Australia and happens repeatedly years after years. Presently this weather pending phenomenon cannot be avoided. Also criminal activities : arson , vandalism is part of life , causing 100 of millions of dollars damages within the years. + Modern technology are existing already to reduce death and property damage substantially with "Petal" Prefabricated buildings. **The Petal system are using two types of concrete. High strength reinforced concrete for the ground covered part and special light weight aerated concrete above ground . **There are a few types of aerated concrete can be find on the market. They have the properties of high strength and more than 3 hours fire resistance. + There's a new basalt based reinforcing material on the market what is make possible to manufacture a perfect fireproof concrete for prefabricated building panels. + Here the presented Petal design using 7 electric motors. These motors can use electricity from the grid and from solar generated energy from on site batteries. In emergency situation won't be a problem to operates the motored wheels. + The new generation of lightweight electric motors make it possible to build them into a mechanical wheel's centre. Therefore they take compact space and easier to hide them in a concrete structure. That way this delicate instrument will be protected from external damages. + The Petal style building has structurally two components: the first one is the rigid firmly fixed structure, the second one the 7 mobile, rolling panels. + The rolling or circularly sliding panels mobilized when it's an emergency situation or simply evenings, lock out sun or lock the building when it's unattended. **The prefabrication make it possible with additional design input to erect the building for a certain time period. Other term: temporary building. It can be dismantled easily and re-elect, rebuildagain. **The Petal style buildings can be used for wide range of applications. The most suitable would be family homes and school rooms. Mining companies and the army would be beneficiaries also. + One of the big advantage of the prefabrication is the speed to finish of erecting the building on site. This is a very significant aspect of the Petal system. On a prepaid site ( surface levelled ,water, sewer pipes, electric, telephone earth cable laid) the building's structure can be erected within 1 days! + Internal finish could be taken a few days pending of the function of the building. **Paramount property of the building it is 100 percent fireproof. First the dome shape is historically and physically proven to be the most stable structural formation . Secondary the aerated concrete scientifically and practically had been proven it's fire resistant for longer period than it necessary in emergency situation . *.Beside to be fireproof the concrete structure prevent and shield its occupants from environmental physical damage. + Compare building speed and cost, maintenance time and expenses the Petal system will be superiorly above all presently used building method. + The environmental footprint of the Petal system is much less than the presently used "brick and mortar" or roof tiled weather board project homes or school buildings. For example: -lack of light weight badly insulated roofs can be easily damaged by ordinary storms -lack of long narrow corridors -lack of badly insulated walls + Using aerated concrete externally it's provide balanced internal temperature, it will reduce heating and cooling costs dramatically. + The moving panels are providing proper shade cover to the windows from extreme sunshine heat. Also they would prevent internal heat escaping through windows in winter. + Using prefabricated panels prevent to accumulate any off cuts, rubble, discarded package materials, or other building waste on the site. All over it is help to achieve a cleaner environment: saving place and cost not to store and transport building waste. + Prefabrication increase productivity. It help the environment to use less energy to provide more building m2 then the presently used old fashion building practice.