roof vertical axis wind power generator is the new designed patent product by Qingdao Jintaida Industrial&Trade Co., Ltd . It belongs to new generation off-grid slient wind power generator .Not only this product has the same traits as the vertical wind power generator , such as running silently, non-effected by wind orientation ,running at low wind speed, little malfunction, power curve satiation and generating electricity in high efficiency , but also it can be installed conveniently.It can be installed on the top of buliding ,housetop .The fee of tower and installation can be saved .This product can be widely used for battalion,villa,hotel,sentry,school , farm, airwaves tower,telecommunication building .It also can be as the electricity source of ship .