Though both rafters and trusses are triangles in shape the trusses have more triangle webs inside the principle frame.
Trussed roof vs rafter.
In finished space insulation is placed between the rafter boards and drywall or other material is fastened to the face.
Rafters and trusses are those that support the roof.
Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs.
Roof truss systems require engineering and drawings.
Trusses are gradually replacing the conventional rafters to the point that nowadays more than 80 percent of new residential construction uses trusses to support the roof.
A rafter is a traditional roof framing method in the form of elongated lumber that s normally inclined from a central ridge beam and joins with the outer walls.
One other benefit to using rafters over trusses is the lead times.
Rafter boards are fastened to the ridge board at the peak and the top plate where they join the wall.
Again trusses can create this same open area but not quite as efficiently.
Trusses for residential homes.
As they work on a roof and walk back and forth most of the time a trussed roof is very solid with no bounce.
While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.
Why has this change occurred and what are the advantages and disadvantages of rafters vs trusses.
Roofs come in various sizes and shapes such as shed hip flat gable gambrel to name a few.
The insulation will go between the rafters and drywall will be applied directly to the face of each member.
For a 2 000 square foot home roof truss installation typically costs between 7 200 and 12 000 you ll spend anywhere from 1 50 to 4 50 per square foot for materials alone or between 35 and 150 though extremely long and complex types can reach 400 each labor runs anywhere from 20 to 75 per hour ranges in both materials and labor are due to location size and roof complexity.
The stick framed roof on the other hand usually has some bounce and a little more squishing feeling to it.
Rafters consist of sloping outer beams which provide support.
This can take several weeks.
The boards creating the slope of the roof are wider than lumber used to build trusses 2x8s 2x10s and 2x12s are most common in rafters vs.
Roof framing has undergone a quiet revolution over the past half century.
However with advanced technology new construction techniques have started using trusses shown on the right image above.
Constructing a roof using rafters is also known as stick framing which simply means that each rafter is built on site with lumber every piece of lumber is carefully measured cut and tightened together labor.
What is a rafter.