Over the Shingle-Mate or Deck Armor roof deck protector that is down slope, so standing water will flow out of the system. Center over the center line install the leak barrier so there is 18″ of membrane on either side of the transition center. Then, shingle up to the center line, stopping even to or just past the center line of the area of the transition that needs to be sealed with a leak barrier sealant. This ensures that the transition will not leak due to inclement weather in the future.
To install the metal flashing, make sure to install over the leak barrier at the up slope side, then over the shingles at the down slope side. Shingle over the metal, making sure to go up the slope to finish off waterproofing this area to avoid the danger of water leakage in the transition.
Seal the shingles to the metal with a brand of your choice of plastic roofing cement, take note however; any excess roof cement that is applied can cause your shingles to blister and take damage. Finally, install the Shingle-Mate or Deck Armor roof decking underlayment protection over the leak barrier that is above the transition to a minimum of 6″ lap.
A homeowner that needs a qualified roofer that has this experience and knowledge can rest assured they are getting the best quality and workmanship out there known in the industry of roofing. When a homeowner knows they are getting an excellent roof job it shows just how much they can count on that particular roofing contractor and therefore the roofing contractor can get the respect he/she deserves in the roofing industry.
So all homeowners should do the homework and research out the roofing specialist that they are thinking and considering on hiring to do any whole roofing jobs, and any roof leak repairs that need to be done on their most prized and largest investment in their life, their home.