"An attic truss is a type of roof truss with an open space at its bottom center to accommodate a living space, with webbing above and on either side of this living space.In order to create an attic truss, certain conditions must be met in the plan:The structure must be wide enough and the roof steep enough to allow space for a loft area with attic rooms on either side of it.The loft area must
. have Attic rooms on both sides and must be separated from these Attic rooms by Knee Walls. 1 The loft area cannot be on Floor 0 or Floor 1 - it must have a living space below it that has a flat ceiling.2 The roof must bear on the walls defining the floor below the loft area. It cannot bear on knee walls.3 Each side of the roof must be composed of a single roof plane forming a continuous slope with a single pitch from baseline to ridge.4 The loft area must have a flat ceiling.If you would like more information visit http://splash.softplansplsh.org/members/articles/publish/article_78.shtml"
