Seal with adhesive sealant or tape as described in section 6.
Roof underlayment flashing install.
Then install shingles on the other side.
To make corner flashing take your tin snips and cut a 45 degree line from an outside corner to the center fold.
Start by laying asphalt felt or other underlayment over the roof.
Fasten drip edge on eaves with.
Using your staple gun secure the felt to the roof.
Do not drive nails into the flashing.
Apply an approximately 3 inch.
Lap successive sheets of metal flashing a minimum of 12 inches and seal laps.
Where the roof meets a wall lap the felt up 4 inches if possible.
Recommended procedures of basic valley flashing installation.
Pry away the siding and slip the felt under the siding.
With a clean valley you can lay down some peel and stick roofing membrane.
Now it s time to install the underlayment and flashing.
With underlayment and flashing installed apply shingles up to one side of the flashing.
These pieces act as a weather proofing and protective barrier between your house and the elements helping keep water and cold temperatures out.
Install an underlayment centered in the roof valley.
Install underlayment a minimum of 6 inches up roof protrusions or vertical abutments.
That is the drip edge flashing is the first item installed onto the roof sheathing or atop old shingles in a multi layer shingle re roof job.
In that installation the lower edge of the felt must be on top of not underneath the drip edge.
But first we re going to flash the eave with metal drip edge flashing and install the roofing membrane over it along the bottom edge of the roof.
Nail metal drip edge flashing which bends over the roof and down the edge of the facing board on all roof edges.
Again do not drive nails through flashing.
Install final flashing material.
Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.
In some situations you may have to temporarily remove the siding and replace it after installing the underlayment shingles and flashing.
Cap staples are recommended on this underlayment every 12 inches along the bottom and every 24 inches in the middle.
Fold the top over the roof ridge and cut the bottom along the drip edge metal.
You ll have to overlap shingles as you go much like weaving.
