Common types of roofs and basic framing terms.
Roof wood frame construction.
Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to.
The united states is well supplied with timber and has a diversified industry that manufac tures lumber and other wood products used in the house.
However it is also possible to build larger roofs using steel framing.
A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.
Panel w 8d 6 6 12 oc common nails 2x roof r w r 30 batt.
Framing materials are usually wood engineered wood or structural steel.
It is a waterproofing layer made of regular felt stacked above the solid.
2x ceiling joists 2x solid blocking w approved framing anchor ea.
Collar ties rafter ties tension beams structural ridge beams.
Few if any materials can compete with wood framing in the construction of houses.
The majority of roofs are framed using wood trusses 1 with a few using wood with steel bracing.
Piece by piece rafter roof construction however is still the more common construction method for many buildings.
An example of each is shown in figure 2 1.
Slab on grade construction where stucco is applied over sheathing provide 2 layers grade d paper under lath n 2x4 stud wall 16 oc df stud grade.
Increasingly wood framing is also being used in com mercial and industrial buildings.
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.
While most home builders will outsource the construction of roofing trusses the rafter supports of the roof itself learning to frame a roof yourself is one of the true arts of carpentry and a basic primer is covered below.
Simple roofs such as a shed or the common gable are fairly easy to construct even without plans if you understand the basics and a little geometry.
Wood frame construction is the predominant method of building homes and apartments in the united states enabling this nation to have the world s best housed popu lation.
Steel has a much higher cost than wood nearly twice as much for materials.
Block double top plate wall section.
It is the form most commonly used by.
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.
Some of these can support the roof and prevent ridge sagging and wall spreading.
Shed gable hip gambrel and mansard.
Gable a gable roof has a ridge at the center and slopes in two directions.
Framing a roof is the last step in framing new construction.
While lumber may have a cost of 4 per board foot 2 steel may be as much as 8 a board foot 2.
