For an open valley a sheet of metal usually steel sometimes copper is fastened to the roof deck.
Weaving roofing shingles on gable valleys.
To shingle out of the valley with laminated shingles lay a shingle down as a gauge and mark the corner at the bottom left and top right of the roof.
Ensure ice and water protector has been installed along the valley first.
To secure the roof valley flashing nail it down carefully.
Only nail at the edges with only enough nails to hold it in place.
All of the shingle rows will need to be lined up correctly.
Weaving a shingle valley by dunn contracting 727 410 5717 james dunn.
The metal is usually pre painted to best complement the shingles color blend.
Next i put a 36in wide roll of aluminum down the valley and a 36in wide roll of 240lb roofing material.
Roofing shingles are installed then cut and sealed where they overlap the metal channel.
A house with an l shaped or t shaped footprint for example always will have roof valleys where the two sections of the house meet.
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.
A woven valley shingle installation is one where the shingles from both sides of the roof valley extend over the valley and weave together overlapping courses alternately.
I used three tab shingles for two of the methods and laminated shingles for the other two.
This is an incorrect installation of this type of roofing material and will be more prone to water intrusion and will void the manufacturer s warranty for this material.
Woven valleys should only be used with strip shingles.
I then move the shingle to the uppermost course on the roof plane line up the mark on the shingle with the valley center and again mark the corner.
Valleys are tricky areas on a roof where two roof sections meet.
First i laid ice and water in the valleys and weaved the felt in the valleys.
Valleys are areas where leaks can more easily occur so they must be done carefully to ensure.
When shingling a roof with three tab shingles it s easiest to shingle the roof planes first working toward the valley.
Valley are the second most prone area for leaks on a roof after penetration such as chimneys and vent stacks.
Weaving a shingle valley by dunn contracting 727 410 5717 james dunn.
How to shingle a valley with architectural shingles.