Nail the drip edge to the roof sheathing at roughly 18 24 spacing intervals using roofing nails.
Roof leaking at side edge.
Here s a few reasons why roofs leak at the edge.
Once water has infiltrated into the flashing it can soak into the trusses and other roofing.
Points to the installation of ice and water shield along the lower roof eaves protecting against ice dam leaks that are common on un vented roofs in cold weather or snow climates.
If your roof is older it is possible that the leak is within the roof field.
1 backed up gutters the photos below show a roof edge that has suffered from long term backup of the gutters.
Nail along its upper edge.
Depending on how the roofs join you may have to cut a slot to work it in far enough.
Rotten or missing trim or siding can allow water to leak behind flashing and into your roof.
If your roof is asphalt then you can walk around with ease.
The sagging first row of shingles is a clear sign of a problem below.
It should overlap another piece of ice and water barrier laid below all the way down to the roof edge.
Flap to bend around the front of the dormer.
Looking for roof leaks on the outside of your house.
Recaulk the corner flashing if any areas have hardened caulk.
Other materials such as slate concrete tile or clay tile may not be so forgiving.
Notch the first step flashing leaving a 1 in.
The water can seep into the roof.
This means the expanse of shingles slate shakes whatever.
You can crack roofing if you walk on it so be careful.
Debris like leaves pine needles or twigs can trap water against the roof.
Make sure you keep the roof clear so water will spill over it fast.
Run the water over the place where you think the leak might be located.
Bend the flap down and nail along the top edge.
Replace any missing or rotted siding above the step flashing on dormers.
Let s examine a few common causes of leaks so you can keep an eye on your roof.
Damaged missing or worn out flashing is a common cause of a roof leak on an external overhang.
Then reshingle sliding metal step flashing behind the fascia board the trim behind the gutter.
Worn out flashing or missing sealant can also cause roof leaks around dormers.
Run the base flashing 4 to 5 in.
Add shingles and additional step.
This should cover the most leak prone areas.
Dormer leaks can be caused from a number of issues.
Dig out any cracked or dry caulking that isn t properly sealing adjoining surfaces and replace with silicone caulk.
When pulled back at the edge it was ugly.
Roof sheathing rotted all the way through below.
Beyond the dormer and cut the top section along the dormer edge.
A roof leak at the edge of a dormer can allow a lot of water to enter your home.
