Particularly when a roof renovation to reduce energy loss or a changeover to renewable energy sources is involved, it is often possible to apply for funding. In normal cases, you can obtain either tax benefits, low-interest loans or direct investment subsidies. Even if the number of government subsidies and grants is limited due to the sums available, there are also many institutions at a local level that can be contacted. The amounts of the sums available and the criteria to be met can differ from region to region.