A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework.
Roof framing terms diagram.
1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches.
This article and series of illustrated diagrams shows you all the parts of a basic roof truss king truss and queen truss.
Includes illustrations that show roofs have hip rafters ridge boards jack rafters and more.
When repairing or replacing a roof it pays to be familiar with these terms.
From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it measure down y height from the long point of the rafter cut and make a mark.
This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams.
Roof pitches commonly range from 4 12 to 8 12.
To calculate a roof s pitch place a carpenter s level positioned level on roof line measure out 12 on the level from that 12 point measure down to the roof line.
Roof framing involves a lexicon all its own.
The angle of the roof slope measured as x inches per 12 x 12.
This will the first point of the rafter measurement line using the results of your rafter length calculation measure from this point along the rafter measurement.
The roof truss structure and design is integral to roof structural integrity and shape.
This roof has horizontal battens for tile or metal.
A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.
Here is a closer look at common roofing terms.
Houses have gable hipped mansard gambrel flat and shed roofs.
Many homes combine roof types on one roof.
American forest paper association wood construction data 1.
Figure 2 2 roof framing terms.
If the unit of rise in inches is 3 then the cut is the unit of rise and the unit of run 12 inches or 3 12.
Line length is the hyptenuse of the triangle whose base equals the total run and whose altitude equals the total rise.
Details for conventional wood frame construction.
This roof framing diagram illustrates how a hip roof is built.
Drive through nearly any neighborhood and you can see that roofs have many different shapes.
Some of these can support the roof and prevent ridge sagging and wall spreading.
It is a waterproofing layer made of regular felt stacked above the solid.
Collar ties rafter ties tension beams structural ridge beams.
Where number of nails is designated as or resulted to more than 15 connection shall be evaluated by a design professional.
There are many types of roof trusses as wall as many types of roofs more types than there are parts.
