The wind is a big deal, especially in Europe where steel roofs are used in the building of buildings.
The roofing, which is made of concrete or steel sheets, provides insulation to the building while protecting the roof against water damage.
There is also the potential to make a huge amount of money.
The average annual electricity bill in Germany for buildings in the last five years has risen from €40 billion in 2006 to €78 billion in 2014, according to the German Federal Ministry of Economics.
One roofer who had to buy steel panels after his building was severely damaged in an earthquake and subsequent tsunami in 2008 says he has lost around €250,000.
The cost of steel roofs, which are usually built with concrete panels, has been increasing in recent years, said the owner of the property.
He was quoted as saying the cost of his roof was €40,000 but the government has said that it will not pay this figure for many years to come.
“The government doesn’t have the money to pay that,” he told the Welt am Sonntag newspaper.
“I am not going to build a new house with that roof, it will be too expensive.”
The roofing industry is facing similar problems with the use of steel panels.
The International Council of Roofers said that the use and expansion of the roofing business in Europe was on the rise, and was on track to overtake that of cement construction in 2020.
But the cost has been a barrier for roofers, said Daniel Schäfer, an expert in roofing.
It is not possible to produce these panels from a new building because there is not enough demand for them.
When there is demand, there are many companies who will build them, he told DW.
The cost of the steel roof, which could also be made from wood, is not clear and it is not known how much the industry could earn.
While the EU is a major supplier of steel, it has not been able to find a suitable replacement for the wood.