Watertightness is achieved through positive integration with the roofing membrane and a purpose designed system for transitioning between the joint in the roof and joints in walls.
Wall to roof joint.
Ej roof to wall cut sheet.
Synthetic underlayment and ice barrier membrane readily fold at this wall to roof joint.
Roof expansion joint selection guide for watertight dual seal dual fastened dual membrane roof to wall integrated roofjoint systems from emseal.
Typically flashing comes in 10 foot long pieces.
If siding on the house wall abuts the porch roof joint the lowest strip should be removed to install the flashing underneath.
Hii geniuses i need to create wall and roof joint like shown in reference image ie wall should be flat while joining with roof kindly give your directions.
F for joints between new and existing vertical walls between curtain walls and glass atriums and other vertical building walls where the flange is part of the closure design.
If your roof joint is longer than that you will need to have two or more.
Metal buildings and panel wall systems where flanges are concealed and or sandwiched within the wall system.
A roofer has cut the housewrap at the joint between the roof and the wall folding it back so that he can lap it down over the underlayment and step flashing as the author recommends.
The flat roofing material must go up the wall a minimum of 12 or up the wall and over the top of the wall if the wall is less than 12 high.
Here is an attempt though maybe not a very good one to make the roof flashing serve also as a through the wall flashing with a tile roof.
Step 2 measure the length of the porch roof joint to determine how much flashing you will need.