[Windows on Wash]

Ajax,

Ice/Water is not designed for flat roof applications or long term exposure.

How much pitch did you put into the roof or is it still flat?

 

[Windows on Wash]

Post up a picture of the roof once you have 5 posts.

That will get you more feedback and ideas from the regulars.

FYI...what you have isn't adequate and it will require a re-roof.

 

[Windows on Wash]

Look at the single ply roofing systems out there and get a suitable roof (EPDM, TPO) membrane down on that substrate before it starts leaking.