Here is a video on how to seal a flat roof permanent it does not required a lot of skills just time to let it dry completely hope it beco.
How to seal seams in rool roofing.
Once the roofing is in position set the glue by running a metal roller over.
Lay 3 inch wide butyl tape.
Step 1 locate and clean your separated seam.
Install drip edge flashings roofing felt and wsu if needed.
Lay 6 inch wide butyl tape over all horizontally lapping end seams.
Sweep the metal roofing sheets of all dirt and debris with a push broom.
How to seal between metal roofing sheets.
Step 3 roll the seams together.
The first layer should cover the roof as far as the chalk line.
Roll out the first sheet and ensure that it lies flat and even.
How to repair rubber roof seams.
Instead of nailing it down you remove the protective backing that covers the adhesive on the back of the roll roofing.
You can install metal valley flashing but it is common to.
Position the tape with the release backing on the top side.
How to do it.
As you place the rolled roofing down stretch it to get rid of wrinkles and creasing.
Once the first row is done add approximately two inches of cement to the top of the first row to secure the second row of roofing.
Locating a separated seam on an epdm rubber roof will usually require that you walk on your roof.
Place the first layer of rolled roofing on the roof.
Step 4 apply seam tape.
Step 2 apply epdm adhesive.