Install a 1 2 premolded full depth isolation joint the same shape abut existing curb and gutter taper the last two 2 feet of the curb from 6 8.
How to replace valley gutter.
Roof valleys play a critical role in diverting water from your roof and into your gutter system and therefore are necessary in keeping water out of your home.
Form saw or score 1 as the curb and gutter just ahead of the taper.
With a clean valley you can lay down some peel and stick roofing membrane.
First clean the debris out of the valley including sawdust nails and whatever else is in there.
If the holes are larger than nail holes use tin snips to cut a strip of flashing the same amterial as the gutter wide enough to fill the area.
Fold the top over the roof ridge and cut the bottom along the drip edge metal.
Holes through the splash guard and the gutter.
A roof valley is very prone to leaks especially if you have an older roof.
The reason why the roof valley is such a sensitive area has to do with all the rainwater and or melting snow that accumulates and flows through the valley on its way into the gutters.
You can find these precut gutter splash guards about 3 in brown and white aluminum at a home center but you could easily make your own out of aluminum or sheet metal and spray paint them to match your gutters.
Install an 18 tie bar across the joint.
We purchase our trim coil and gutter accessories from abc supply who is a distributor for a cm rainware systems.
Feather the roofing cement out on the surrounding area to flatten any steep edges.
However many homeowners do not realize the necessity of roof valleys for their roof and gutter system and may neglect these valleys even if they are on top of their other regular.
These materials are then replaced with a new fibreglass valley new underfelt and the roof tiles bedded onto new cement.
Bend the strip to fit and embed the flashing in the cement.
Apply plastic roofing cement over small holes.
Drill rivet holes for the gutter splash guard.
If the roof valley itself needs to be ripped out and replaced then this will involve significantly more work and cost.