One young guy with his own hands screws a screw into the plugs of the roof of a metal barn.
Close-up of a new built chimney on a house roof under construction
Male adult carefully wiping dust from PV solar panel.
Young hipster couple lying on the roof and kissing. Beautiful view of the city from above.
Industrial worker inspecting with laptop machine at factory machines.
A modern graphite herringbone roof lining is attached to the trusses, visible turned on LED lights.
Young hipster couple lying on the roof and kissing. Beautiful view of the city from above.
Man technician mounting photovoltaic solar panels on roof of house with help of hex key.
Men technicians mounting photovoltaic solar moduls on rooftop of warehouse.
Men technicians mounting photovoltaic solar moduls on rooftop of warehouse.
Electricians connecting cables while installing photovoltaic solar panels on roof of house.
Men technicians mounting photovoltaic solar moduls on rooftop of warehouse.
Young happy couple walking on the roofs of St. Petersburg. Beautiful view of the city from above
Male constructor in uniform checking walls support and roof beams of building
Worker laying the vapor barrier for the roof, bituminous membrane to be welded with flame
Men workers installing solar panels on roof of house.
Men workers installing solar panels on roof of house.
Worker building photovoltaic solar panel system on rooftop of house with help of wrench.
Portrait of industrial worker inspecting and check up machine at factory machines.
technician cutting metal with cutting wheel in order to install photovoltaic solar panels
Industrial worker inspecting and check up machine at factory machines.
People checking compliance of safety regulations at a construction site
The portrait of a young engineer checks with tablet operation with sun
Roof ceramic tile arranged in packets on the roof on roof battens. laying tiles on a boarded roof.
The portrait of a proud engineer smiles satisfied with his successful work.
Carpenter holding large beam while builds wooden frame house near the forest.
Industrial worker inspecting with tablet machine at factory machines.
Carpenter hammering nail into OSB panel while building wooden frame house.
Men technicians mounting photovoltaic solar moduls on rooftop of warehouse.
Roof ceramic tile arranged in packets on the roof on roof battens. laying tiles on a boarded roof.
