Tied Truss Arch Roof

An arch chord king post truss is another variation on the classic king post style this time with an arched lower chord.

Tied truss arch roof.

The hammerbeam roof of westminster hall in london designed by hugh herland and installed between 1395 and 1399 was the largest timber roofed space in medieval europe spanning a distance of just over 20 metres 66 ft. The hammerbeam roof was the culmination of the development of the arch braced truss allowing greater spaces to be spanned. More roof size up and look at the tied truss. The raised tie roof truss imposes a horizontal load onto the wall plate and wall when loaded.

A vaulted or sloped ceiling offered by a raised tie truss can add an aesthetic point of interest to a room. Directory and listing of tied arch roofs from around the world including images technical data literature and other project information. Unlike the conventional truss which is fully triangulated by virtue of its bottom chord fixing the top chords together the raised tie roof completes its triangulation at the flat ceiling to sloping ceiling intersection. This design adds a curvilinear element into the ceiling space instead of the standard horizontal timber raising the structure somewhat and giving some extra volume below.

This style of roof truss allows homeowners to increase the amount of light they can bring into their homes.