Roof pitches commonly range from 4 12 to 8 12.
Roof framing terms diagram.
The first approach to achieving a strong durable struc.
Here is a closer look at common roofing terms.
Line length is the hyptenuse of the triangle whose base equals the total run and whose altitude equals the total rise.
Houses have gable hipped mansard gambrel flat and shed roofs.
Roof framing involves a lexicon all its own.
Where number of nails is designated as or resulted to more than 15 connection shall be evaluated by a design professional.
It is a waterproofing layer made of regular felt stacked above the solid.
The roof truss structure and design is integral to roof structural integrity and shape.
Roof framing rafter layout.
20 psf dead load roof live or snow load snow load 20 psf 30 psf 50 psf 70 psf roof span feet rafter slope rafter spacing.
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.
Details for conventional wood frame construction.
A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.
Figure 2 2 roof framing terms.
Some of these can support the roof and prevent ridge sagging and wall spreading.
Collar ties rafter ties tension beams structural ridge beams.
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.
1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches.
This roof has horizontal battens for tile or metal.
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.
When repairing or replacing a roof it pays to be familiar with these terms.
Many homes combine roof types on one roof.
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.
There are many types of roof trusses as wall as many types of roofs more types than there are parts.
This article and series of illustrated diagrams shows you all the parts of a basic roof truss king truss and queen truss.
Drive through nearly any neighborhood and you can see that roofs have many different shapes.
Includes illustrations that show roofs have hip rafters ridge boards jack rafters and more.
This roof framing diagram illustrates how a hip roof is built.
The angle of the roof slope measured as x inches per 12 x 12.
