Iko recommends that you install architectural shingles with the open valley method for the best roof performance.
Roof valley design.
When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof.
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.
This recommendation includes iko s premium shingles.
Intricate roofs have many parts that incorporate several of the basic roof designs such as a gable roof sitting atop a gambrel or variations of the gable valley roof design using one or a variety of different types of roof trusses also see our very detailed diagrams showing the different parts of a roof truss.
Repairing a valley area on a shingle roof.
Also different architectural styles will use the same type 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.
Most roofers know how to install shingles but many have no clue how to do a valley.
Where two roof valleys meet for example above a gable dormer a soldered joint is likely to break from the movement.
The materials they use in valleys are inferior.
The three methods to shingle a roof valley.
We may not know how to spell but roofing we know best.
You can see in our roof valley photo left that there has been a history of.
Roof installation how to shingle a valley hd by roofrepair101 more about roofing at.