Determine where the lean to will be attached to the existing building.
How to flash lean to roof.
Flashing should be purchased that fits over the principles along with water tight.
Any water runoff will flow off of the main roof and hit the lean to at an angle to prevent pooling and flooding in the lean to.
How to install flashing on lean to roof threetab shingles install a sealant while one install metal and chimneys especially if you install metal roofing professionals occasionally use nails and leaking underneath the siding roofers started to build a lean to a leanto roof decking and galvanized steel or a kickout.
Whoever you bought your panels from should be able to provide closures for the eaves and the headwall.
You should be able to buy some roof to wall metal to match the color of your roof.
Slide the metal behind your siding and secure the leg that comes onto the roof into the ribs with 9 grommeted screws.
Cut out a notch on the top of your posts as shown in the image above.
Debris that has been properly installed you throw on them.
Next place the supporting posts into the notches.
The preferred spot would place the lean to under the overhanging roof of the existing building.
Roof shingle over step flashing.
This build is a porch addition on an existing metal building home.
It turned out really beautiful but the flashing isn t done correctly.
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.
Bend the corner flashing tightly around the corner.