Tie In Roof Truss

Tie a new gable or hip roof to an existing gable or hip roof with valley rafters which perform the same function as ledgers.

Tie in roof truss. In a nutshell it s made up of a central vertical post called the king post two rafters meeting at the apex and a tie beam or the horizontal base. Strip the roofing from the old roof at the connection point to. Closed in which the bottom chord is horizontal and at the foot of the truss and open in. However unlike rafters trusses are pre assembled before being installed.

It is because the bottom chord of a roof truss is in tension that the truss member can be as small as a 2x4. The top members of a truss are known generically as the top chord bottom members as the bottom chord and the interior members as webs in historic carpentry the top chords are often called rafters and the bottom chord is often referred to as a tie beam there are two main types of timber roof trusses. A raised tie roof truss is a truss where the bottom chord making up the triangle shape moves towards the top of the triangle. It is in tension and is holding the top chords of the truss against spreading.

Trusses like rafters form the profile of the structure s roof. Unlike other trusses which support on the ceiling tie the bottom chord raised tie trusses are supported partway up the lower end of the rafters.