Reverse Roof Valley

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.

Reverse roof valley.

The bottom of our blind valley was about 30 inches short of the bottom of the porch roof so we extended the line of the valley down to the edge of the new roof. Soup to nuts riley shows the proper way of installing a valley on a roof. Iko recommends that you install architectural shingles with the open valley method for the best roof performance. This recommendation includes iko s premium shingles.

The three methods to shingle a roof valley. The roof framing plan. In this video i show you how i do the valleys on a shingle roof. Valley are the second most prone area for leaks on a roof after penetration such as chimneys and vent stacks.

Shingling both a closed cut valley and a long island valley is the same for the first half of the process. No one of this affirmat. Closed cut and long island roof valleys. For the next two shingling methods closed cut and long island valleys i work out of the valley using laminated shingles instead of working toward the valley with three tab shingles.

The general arrangement of rafters shown in the larger drawing. When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof. Doubled valley rafters valley jack rafter common rafter common rafter with overhang top plate run length of building span of building. This is an indication that whoever performed this roof installation was not aware of the proper installation method for this roofing shingle.

Reverse gable roofs are typically perpendicular to the main roof of the house or building. Soup to nuts riley shows the proper way of installing a valley on a roof. 504 chapter 18 hip valley jack rafters. Many roofers cut the shingles across because they say it s safer.

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. A reverse gable roof may be part of an addition or it may be a way to install a garage without adding a new roof.