The institute said that vehicles that received good ratings for rollover protection had roofs more than twice as strong as required by the current federal standard, and estimated that such roofs reduced the risk of serious and fatal injury in single-vehicle rollovers by about 50 percent compared with roofs that met the minimum requirement.
He described how the first phase of repairing the palace's cast iron roofs had been "more difficult than expected".
Ms Massai said many people had climbed onto roofs and up trees to escape the rising water, then fallen or hurt themselves as they came down.
The petition, signed by about 3, 000 people, said action was necessary because the school had problems with leaking roofs and damp.
Some generators had been placed on roofs and survived, but the electrical panels that fed them power were stationed in the basement.
"We have players in the squad who have had accidents from falling off roofs which have and they were given the choice but we are close-knit and wanted to do it as a team, " said Blake.
Three horses had to be rescued after the roofs of two barns collapsed under heavy snow in separate incidents in Angus and Perthshire.
Scott Devico, a spokesman for the Connecticut Department of Emergency Management, said Monday the roofs of 16 homes and buildings had collapsed because of the weight of the snow piled atop them.
People moved to the roofs of houses to watch what was going on, but within a few minutes, Sudanese security forces had asked people to come down and from that point, Sudanese security was standing on top of the roofs.
On one of the side roofs lay the body of a man who had just fallen to his death from an upper level.
The dwellers around him in the hamlet had also finished their dinners, and the smoke from cow-dung fires hung over the darkening roofs, a harsh spicy smell, like rough tobacco.
Feed-in tariff subsidies, which enable people who install solar panels on their roofs to get rebates for the electricity they put back into the grid, were halved for people who had their panels installed after 12 December - a move which Labour says has "strangled" the solar panel industry.
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