The flashing if metal does not break down and can be re used if the sealants that are subject to environmental break down are removed and re done.
Is it necessaryto replace flashing on roof if nothing wrongnwoth it.
On a typical re roofing job where you are replacing an old or underperforming roof it is wise to replace all flashing.
Gutter flashing should almost always be replaced unless you don t want to remove decorative guttering because it is attached with spikes or screws through the existing drip edge.
Believe or not this idea got a lot of resistance by local roofing contractors here in hampton roads virginia when i first proposed it.
Your roofing contractor is try to protect his interest by not having to warrant another persons work.
So make sure write it in the contract that the contractor knows that the drip edge is to not to be damaged else the contractor will have to replace it with the identical design material and color at his expense not just like and kind or something close.
The only way to ensure the quality of the flashing is to replace it with new flashing and install it properly when the roof is replaced.
If there is nothing wrong with it leave it.
One of the most common things i heard was.
If you see sagging then it is too late you and you will have to replace a major portion of your roof.
Proper roof wall flashing example to install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width.
It s not always possible to remove the old flashing in these spots.
Periodically inspect your roof for any signs that the integrity of the structure has been compromised.
That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.
Any evidence of roof leaks.
If this is the case with your home overlay the current drip edge with a new gutter apron and cut the bottom edge of it to accommodate the spikes.
That being said it isn t always necessary to replace flashing when conducting shingle repairs or replacements.
Flashing is a relatively inexpensive roofing material and many professionals will replace flashing whenever shingle damage is near or incorporates flashing.
Once you roof flashing fails your roof will begin to leak water and cause major damage.
Roof flashing is the barrier between your home and the weather.
However there are limited circumstances where a roofer may decide to reuse flashing.
Maybe you had a leak in the roof once upon a time and you had it fixed and it didn t leak since.
