The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
Flashing on roof lifting.
While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.
Seal the seam between the cap and step flashing with urethane roofing cement or silicone caulking compound as shown at right.
Once you have determined the flashing does indeed need to be sealed gently lift the shingles laid on top of the flashing so you can reseal them.
Apply roofing cement 6 inches from the edge below the shingles.
Hi we had our house inspected yesterday as we are selling our property and one of the things that came up in the inspection was flashing that is lifting.
Step 5 seal vent flashing.
Flashing is critical to certain areas of your roof namely the places where the roof surface meets a wall sidewalls and front walls the low points where two roof slopes meet called valleys roof protrusions bathroom kitchen vents skylights and the roof s edges rakes and eaves.
Step 4 generously apply roof cement.
If you are working with valley flashing lift the edges of the surrounding shingles and spread roofing cement on the flashing about 6 inches in from the edge of the shingles.
It is important to take great care in lifting the shingles because you don t want to cause any damage.
Step 3 gently lift the shingles.
Use a caulking gun to seal the vent flashing.
Open valleys have metal flashing to protect this critical area of the roof.
It can be made of galvanized steel copper aluminum or even vinyl you will find it under the shingles running along the peak of a roof but also around chimneys vent pipes and skylights.
Roofing flashing lifting up.
The flashing is located at intersection points on your roof in spots such as peaks and valleys where water is likely to collect and pool.
Then spread the roofing cement under the shingles that are surrounding it.
Some solutions for shingle buckling are to allow moisture to escape the roof remove the shingles and the areas that are affected ensure the attic is properly ventilated.
And in our experience when a single piece of flashing extends only a few inches under the shingles especially on a long roof slope and worse on a roof that happens to slope slightly towards rather than away from the abutting vertical building wall the accumulated roof drainage water near the bottom end of the roof wall intersection will.
Here is a guide on how to install lead flashing to your roof.
Apply enough bead as determined by you between the vent pipe and the flashing.
