Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
Sidewall flashing shingle roof.
Once even a small section of roofing cement fails you ll have a leak.
It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.
Waterproof your windows with liquid flashing learn how to install liquid applied flashing to seal the rough opening while leaving a path for water to escape.
The flashing needs to be installed before installing the roof shingles the metal flashing is formed with a hook edge and cleated on 12 centers the flashing extends up the wall at least 4 the flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas.
Epdm flashing tape with a butyl adhesive backing will help.
Apply drip edge and roof underlayment over the roof deck and continue lapping up the sidewall and over the water resistive barrier in this case rigid foam insulation a minimum of 7 inches figure 2.
How to install sidewall flashing and kick out diverters on homes with rigid foam insulation sheathing.
But it doesn t work that way.
Each additional rain adds more water and before you know it you ve got rotted wood.
The wall side of the flashing can either be covered over with siding or sealed with caulk.
