Turning A Roof Valley
To keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge.
Turning a roof valley. 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. Roof installation how to shingle a valley hd by roofrepair101 more about roofing at. Drip edge flashing is supposed to. Despite their beauty there is.
Stop nailing 6 inches from the center. A lead cap overlaid 6 inches onto each valley is an effective way to seal the top. Where two roof valleys meet for example above a gable dormer a soldered joint is likely to break from the movement. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof.
When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof. Roof one side of the valley running the shingles across it. In this video we ll flash the valley. The mission of water is to turn houses to mush.
The three methods to shingle a roof valley. Shingle the other side of the valley the same way. Lay the flashing down in the roof valley and start at the lower end of the roof. Use 1 inch galvanized roofing nails.
One of the most appealing aspects to roof shingles running through the valley is that leaves don t get caught up in it. To begin with place a nail on each side of the bottom of the flashing panel about 1. After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side. Attach the flashing panel in place at the bottom.
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. Roof valleys are like gutters with a steep pitch but the stakes are higher for valleys than they are for gutters. Some drip edge flashings may actually help water accomplish this mission. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles.
You can see in our roof valley photo left that there has been a history of patching at the valley intersection on this roof. In a previous video we covered how to flash roof edges before shingling. This recommendation includes iko s premium shingles. Roof valleys are like gutters with a steep pitch but the stakes are higher for valleys than they are for gutters in a previous video we covered how to flash roof edges before shingling.