The rafters carry the applied loads to the exterior walls.
Roof valley framing details.
To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition.
Your choice of valley installation method is critical because when improperly installed valleys are risks for serious leaks.
Roof framing is one of those carpenter skills that appears quite complicated and indeed some roof designs are difficult.
Water collects in a valley to flow off the roof.
But it doesn t have to be.
A roof valley is formed where two roof slopes meet.
If you begin with accurate as built measurements and use a construction calculator to do the math you can cut all of the rafters for most roofs on the ground in just one shot.
The intersecting roof consists of a gable and valley or hip and valley.
In a rafter roof all of these components are required to provide a stable roof.
Shed gable hip gambrel and mansard.
The valley is formed where the two different sections of the roof meet generally at a 90 angle.
Roofs are basically five types.
Framing a complex roof is one of the trickiest parts of home building.
This type of roof is more complicated than the figure 2 1 most common types of pitched roofs.
This roof valley is a perfect example.
Essentially there are three main ways to shingle a roof valley.
Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley.
Details for conventional wood frame construction the first approach to achieving a strong durable struc ture involving economical use of materials is to follow a.
Prescriptive roof consisting of the rafters a ridge board ceiling joists and collar ties.
Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes.
The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off.
Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet.
Another common design in the northeast is the saltbox which is a gable roof with one longer side.
At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing.
Trussed valley set detail no sheathing continuous 2x4 sp no 2 attached to the roof 146 basic 160 ultimate mph wind speed.
