When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof.
Picture of ridge line meeting a roof valley.
The three methods to shingle a roof valley.
The top end of each rafter is cut at an angle so that it meets flush with one broadside of the ridge board and the ridge is sandwiched between the rafters.
Ridge boards and beams.
Part 3 of the four part guide to roof construction covers pitched roof detail.
Iko recommends that you install architectural shingles with the open valley method for the best roof performance.
Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings.
This type of roof is also called broken back hip and valley roof because the main hips are intconeected by the rafter of gables on one side and the rafter of the valley on the other.
Blind valleys simplify framing.
In traditional house framing also called stick framing a basic roof frame consists of opposing pairs of sloping rafters that meet at their top ends at a ridge board or ridge beam.
The hip valley members are 1 1 2 thick and my intent was to show the bottom surface of roof sheathing meeting at their centers.
To get the most out of it is helpful to also read parts 1 and 2.
If you re saying they should be off center please explain.
Such buildings may have more than four hips in the roofs and they form valleys at the inside corners.
Your observation is correct about the h v line meeting the inside corner of the fascia instead of the outside.
This recommendation includes iko s premium shingles.
Using a pitch measuring tool that i d made we also determined that the exact pitch of the shed roof was 3 1 2 in 12.