How to flash a porch addition.
How to flash a porch roof.
The proper way to seal and prevent leaks on this type of seam is by.
These leaks are almost always caused by improper flashing installation or the absence of roof flashing altogether.
Cracks in the shingles can also be the culprit especially if the shingles are underneath a tree branch.
How to install porch roof flashing.
Place the flashing between the joint of the house and the roof.
The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
Each flashing job is a little bit different and depends on the type of material that the exterior of your house is made of.
The point where a new porch roof butts up against a wall of the house is a prime place for leaks.
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.
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.
Open valleys have metal flashing to protect this critical area of the roof.
Try to keep the nails as flush as possible to the edges.