Attic Trusses - "Room-in-the-Roof"

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The advantages of attic frames is that they enable the upper floor of a building to be totally contained within the truss. The bottom chords become the floor joist of the room, their size having been calculated to cater for increased loads.

Attic Trusses can be designed to allow "clear span" supported at eaves only, however for longer spans it is recommended to incorporate the intermediate support near to mid-span. This will allow either larger internal room dimensions or reduce the number of timber sections required.

Where a more complex attic roof layout is being planned, for example where hipped ends, corner or intersection may occur, it is recommended that a truss designer is contacted to prepare a feasibility study at an early stage of the project.