Roof supports are structural elements that provide stability and strength to a roof. BEAMS, RAFTERS, and TRUSSES are all common types of roof supports. BEAMS are horizontal members that span the width of a roof and provide support for RAFTERS. RAFTERS are sloped members that run from the ridge of the roof to the eaves and provide support for the roof decking. TRUSSES are triangular frames that span the length of a roof and provide support for the roof decking. All three types of roof supports work together to provide a strong and stable roof structure.