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#howtoinstallaveryapwithoutremovingoldroofs #processofinstallingaveryapwithoutremovingoldroofs #howtoinstallaveryapsteelnetworkwithoutremovingoldroofs HOW TO INSTALL A ROOF WITHOUT REMOVING THE OLD ROOF The method I used to install a roof without removing the old roof is 5 meters wide and 6 meters long. To install the roof without removing the old roof, I used double C-channels for the light steel. The main frame supports are one in the middle of the building's width and four along the length, including the crenellations. To install a light steel roof without removing the old roof, you can see the method and steps in this video. Thank you, I hope this is helpful.