How to Roof a Valley in 7 Easy Steps
The roof valley is where two roofs come together at an angle.
Since rainwater collects in the valley and runs down, it is
important to learn how to roof a valley to avoid water leaks and other
How to Roof a Valley
These seven easy steps show you how it's
- Lay a durable roofing felt or other material over
- Lay an 18-inch strip of metal flashing from the
eaves to the ridge. Nail it down on the outer edges, making sure
the flashing stays flat down the center of the valley.
- Apply a generous helping of roofing cement to both
sides of the flashing.
- Lay a 36-inch strip of the roofing material over the
flashing and nail it down securely on the edges.
- Snap two chalk lines down the valley. Start at the
ridge, with the lines about six inches apart, and widen them by
about one-eighth inch per foot as you go down toward the eaves.
These lines will be your blueprint for adding the shingles.
- Dip the end of each shingle in the roofing cement
for a moment to add even more protection for your valley.
- Nail the shingles down to the edge of the chalk
lines, and cut them to fit. Remember that when you nail the
shingles down, keep the nails at least six inches from the chalk
When roofing a valley, it is important to take your time. Learn
how to roof the valley in the most effective way, invest in
top-quality materials, and take your time with precise
measurements. A little patience and attention goes a long way
toward making certain your roof is secure!
Finally, keep safety in mind. If you feel your
roofing project is too daunting, it may be time to look
for local roofing
contractors for help.
About the author: Shannon Dauphin is a
freelance writer based near Nashville, Tennessee. Her house was
built in 1901, so home repair and renovation have become her
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