Unless it will be protected from rain by the house s eaves or a solid roof a roof ledger that is fastened directly to a house with wood siding should be capped with galvanized metal z flashing that tucks up under siding to prevent water from seeping in behind it.
Front porch roof flashing.
Gently hammer the 45 degree cut around the corner of the porch roof seam.
Prepare the area where you will install the roof flashing.
Place the flashing between the joint of the house and the roof.
Years ago many homes in the northeast had front porches built directly over the basement foundation.
The only thing holding back the cold snowy weather and the rain was 1 inch thick tongue and groove pressure treated porch decking that was painted to seal it from the elements and keep the water out.
To prevent wood rot it is important to install flashing over your ledger board properly.
Mark the location of the ledger against the siding.
First roughen the area around the hole with a wire brush or sandpaper and then clean it.
The flashing on the wall should be flush against it and the porch roof portion should be on top of the shingles.
Nail the flashing securely in place using roofing nails.
Cracks in the shingles can also be the culprit especially if the shingles are underneath a tree branch.
Measure the length of the porch roof joint to determine how much flashing you will need.
Install j channel along.
Try to keep the nails as flush as possible to the edges.
Slide z flashing up under the siding and secure with nails.
Like ledger flashing installing brick flashing is not difficult to do and will extend the life of your front porch or deck.
Plug pinholes with roofing cement and patch holes up to about 3 4 inch in diameter with a patch from the same material as the flashing.
The corner cut should be facing upwards.
Water and ledgers don t mix and that is why most fail.
Flashing a patio roof ledger.
If you already have faulty flashing installed you.
Cut the siding at these lines.
More project and tips.
Extend it past the cutout on both sides.
A leaky porch roof is caused by numerous reasons but it is most probably due to damage in the flashing and not the roofing material unless the roofing material is too old and nearing the end of its life.
It has been too co.
Watch this ledger flashing siding step 1.
How to repair roof flashing small holes or corroded spots in flashing can be easily repaired.
