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