Pitched Truss Roof
Tm stairway framing www mii com 11 s stairway and stairwell details stairwell opening without stud walls stairwell opening carried by stud wall stairwell opening perpendicular to floor trusses carried by stud wall tm built up beam with strap hanger header beam pocket.
Pitched truss roof. This 26 span truss with a 4 12 roof pitch is the most economical truss we can build. Pitched profile open web trusses red w. With rafters collars ties struts ridges underpurlins ceiling joists hanging beams combination hanging and strutting beams pitching plates and so on. A cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters ridge boards joists and purlins etc the exact details being determined by the size of roof size of timbers etc.
Roof trusses for over 30 years 84 lumber has been a leading manufacturer of metal plate connected roof trusses for some of the country s largest single family and commercial builders. Steeper roof pitches require longer webs which add to the cost. Villa truss we manufacture engineered open web floor and roof trusses for residential and commerical applications. These trusses the meet building code criteria as specified by structural building components of america sbca and the truss plate institute tpi.
A pitched roof construction is the classic old school way of roof construction. The same is true if we make it steeper. Live loads are not always present. Designed and built specifically for each job they create efficient and economical floor and roof solutions.
Some of the most useful roof pitch types are. Roof trusses are engineered wood alternatives to hand framed rafters. We utilize state of the art technology the latest design software computerized saws and specialized jigging equipment all of which are designed to. Examples of live loads are snow wind rain and temporary construction loads.
Roof floor truss manual 7 31 08 10 43 am page 12. They can be constructed easily at low cost but one cannot use asphalt shingles for low pitched roof design. There are two basic methods of pitched roof construction. If we go any larger it will require more webbing inside the truss which will directly affect the cost of the truss.
They support live and dead loads by efficiently transferring the loads to the building walls or supports. Low pitched roofs when we keep the pitch of the roof below 3 they are called low pitched roofs. A pitched roof uses not only the external wall systems but also particular parts of the internal walls. These types of roofs demand quality materials and demand time to time maintenance.
They are designed at a 4 12 pitch to be spaced 2 foot on center. Open web trusses give you the advantages of wood and steel their high strength to weight ratio and long span capabilities free you to design and build large open spaces of over 100 feet wide.