A roofer must be careful where the nails are placed in the shingles of valley roofs.
Valley of roof.
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.
When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof.
These leaks can be caused by poor roofing practices or just simply by the age of the shingles on the roof.
The valleys on many older houses comprise layers of roofing paper which can deteriorate over time.
Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles.
Roof valleys are troughs that discard runoff water where two sections of sloped roof meet.
Iko recommends that you install architectural shingles with the open valley method for the best roof performance.
Roof installation how to shingle a valley hd by roofrepair101 more about roofing at.
Roof one side of the valley running the shingles across it.
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.
If the nails are placed in the very center of the valley leakage will occur.
The three methods to shingle a roof valley.
Shingle the other side of the valley the same way.
A valley roof leak is the most common type of roof leak.