(A yellowish twin of the work is one of three Koonses currently installed on the roof of the Metropolitan Museum, where it gathers funhouse reflections of viewers and the surrounding city, under blue skies turned velvety green).
Parliament has already had new ventilators installed on the roof to clear the gas.
A heat-absorbing, oxygen-producing garden has been installed on the roof of city hall.
Over Florham Park, N.J., Johnson noted the solar panels the team recently installed on the roof of its practice facility.
The tree's lights will be powered by solar panels newly installed on the roof of 45 Rockefeller Plaza.
Because it must be able to withstand an "ember attack," sprinklers will be installed on the roof.
First, they had solar energy panels installed on the roof of their home -- a project that they expect will bring substantial savings on their electric bills.
Of the four life-size statues honoring the retired Mexican striker Hugo Sánchez, two are installed on the roof of his own house in Cancún.
It supplies about a third of its own electricity with photovoltaic panels installed on the roof, and gets its hot water from solar collectors.
Jonathan Shaw got solar panels installed on the roof of his home in Sydney in 2011 and ever since has been riding something of a gravy train.
The workers wait in the gloom, talking quietly, worried, waiting for the powerful, heavy generators installed on the roof to start up.
