This how to video explores proper roof flashing installation for shingle roofing applications.
Installing roof shingles and flashing.
Flashing is installed to surround roof features such as vents.
The remaining siding on the sidewall will overlap the step flashing and nail.
You will also need rake edge flashing for the sides of the roof.
Install the step flashing when the siding is installed it should be tucked behind this piece and then consecutive courses lapped over it.
Start by laying asphalt felt or other underlayment over the roof.
This movie shows you how to install step flashing on a roof with iko roof shingles.
Step 18 shingle peaks and hips.
Make sure to install flashing around the chimneys and walls.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
However when flashing crowne slate with its much larger 10 exposure the flashing piece would need to be 10 x 12.
To make corner flashing take your tin snips and cut a 45 degree line from an outside corner to the center fold.
How to apply roof ventilation on shingles roof.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
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.
Begin by removing the shingles at the affected area and removing old flashing if present.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
Secure the horizontal flange to the roof deck using two nails.
If you live in an area with inclement weather you should consider using a special ice and water protector.
Use roofing nails to install the l shaped flashing flush with the roof and wall then cover it with roofing cement and reattach the roofer s felt.
To install the flashing piece on the first course place it over the end of the starter strip.
Nail metal flashing called drip edge along the bottom edge of the roof deck near the gutters.
Overlap each row at least 3 to 4 inches.
If the roof meets a wall that is parallel to the shingles roof up to the wall then slip a long continuous piece of flashing under the siding and on top of the shingles.
Apply a flashing piece then a shingle then flashing as you would apply step flashing for a chimney.
Step flashing redirects the water back onto the shingle.
Place it so the tab of the end shingle covers it completely.