4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles.
Install flat roof flashing.
Roof shingle over step flashing.
Place the flashing where you determined and hammer it in place using roofing nails until the head of the nail is flush with the roof.
If you do not wish to form your own corner flashing you can buy pre bent pieces and cut them to size or use a piece of corrugated aluminum which is easier to bend.
Step flashing on roof peak.
Typically flashing is installed using roofing nails and roofing cement.
Prepare the roof by tearing off the old shingles or by preparing for a reroof.
In order to properly install new flashing you ll have to remove the shingles surrounding your old flashing and then re lay them after installation.
For a flat or nearly flat roof use double coverage although a torch down modified bitumen or epdm roof is a better solution.
Flashing is generally installed at any joints or edges in the roof where water could otherwise work its way in.
This video demonstrates where flashing could be leaking from on a brick wall.
Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint.
Flat roof flashing this could virtually be any type of flat roof the upstand of the flat roof covering is overlapped by the drop of the flashing.
Bend the corner flashing tightly around the corner.
Roofs peel off from the edges so it is critical to hold them tight with the roof deck sealed on the outside we turn to flashing the edges with metal and membranes metal drip edge flashing image details roofing wrb flashing.
Lead flashing maximum length.
Working with a helper expect to spend half a day installing flashings and roll roofing for a 700 square foot roof with modest complications.
Most flashing is 8 inches wide.
The gibraltar building products l flashing protects your home the gibraltar building products l flashing protects your home from moisture infiltration where your wall meets your roof.
Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge.
L shaped flashing is a versatile general use flashing used where a uniform or strengthened finish is needed on a 90 surface.