I hope you got that all in writing on their official letterhead. I don’t question what they told you, but going off my experience in roofing, I don’t buy the adhesive only at seams and around roofing components Line. Get the best deal that you are happy with and soldier on.
That seemed counterintuitive to me as well but all info indicates the Dicor membrane needs the ability to expand and contract to function properly.
From Alliance: "I received your information regarding bubbles in the roof membrane. The membrane is secured to the roof at the seams and around each rooftop component. There is no adhesive in the open spaces. This allows the membrane to expand and contract as needed more freely. Small bubbles can be normal"
Follow up: "Am I correctly understanding your adhesive information to mean there are large expanses of the membrane are not glued to the substrate?"
From Alliance: "That is correct. We don’t glue the large expanses to allow that membrane the ability to adapt to the temperature and environment more fluidly."
Doesn't Alliance corporate have a reputation for accuracy and honesty? Why would they lie about something so simple and basic?
From Dicor information about their Tufflex membrane:
Will the air bubble effect the performance of my roof?
No. The air bubbles will not blow up and pop. They will come and go with the weather conditions, humidity, etc.
Please do not puncture the air bubbles. Air bubbles mean there is room for expansion and contraction, lessening the chance of stress cracks later.
From Dicor tech support:
"As you have read these bubbles are normal and allow for expansion and contraction."
These bubbles will not affect the warranty."
Indeed, these statements were delivered to me with the official electronic letterhead.