Wikipedia
In Japanese architecture a , literally "skirt storey" or "cuff storey", is a decorative pent roof surrounding a building below the true roof. Since it does not correspond to any internal division, the mokoshi gives the impression of there being more floors than there really are. It is usually a ken deep and is most commonly seen in Buddhist temples and pagodas (see for example the article tahōtō). The mokoshi normally covers a hisashi, a walled aisle surrounding a building on one or more sides, but can be attached directly to the core of the structure (the moya), in which case there is no hisashi. The roofing material for the mokoshi can be the same or different (see for example's Hōryū-ji's kon-dō) as in the main roof.