Flat roof ladder made of old wood

Large ladder of old wooden flat roof of 3.25 m long with 11 bars and the 12th that holds the ladder on the roof that is outside. The width is 45 cm and 6 cm thick. This ladder was used to redo the roofs, it is very thin and the assemblies are old-fashioned, without nails or screws and bears some traces of paintings and blows related to its past. Its color is natural gray wood so, it can be painted after a simple cleaning and it can be used in decoration vertically or horizontally.