Large roof window in which the open sashes create a balcony, increased operational safety and burglary resistance, multi-point locking system, recommended for installation in rooms without a knee ...

The proposed roof significantly increases its mass, dominance and height compared to the original 1970s design' ...

Cheaper than photovoltaic roof panels and easy to install - balcony solar is taking off as Germany seeks to switch to renewables. More than 800 000 kits had been installed in Germany by the end of ...