Separate the leaking seam to about 12 inches or more from the leak.
How to repair rubber roof leaks.
If you take that step be sure to cover the nail heads with tar roof sealant or peel and stick flashing patch.
Examine all seams on your roof for splitting or separating.
Unscrew and remove the large metal washers holding down the fiberboard substrate.
When the membrane is completely dry apply the appropriate roof repair material such as roof cement tar or peel and stick patch.
Epdm primer or glue this is used to adhere patches and flashing to rubber membrane.
Weathered membrane cleaner this liquid is used to dissolve and remove residue off the roof which.
Lap caulk sealant used to seal the edges of a patch.
Small nail holes left behind from old vents satellite dish brackets or anything previously attached to the roof can allow water to enter and cause damage for years before leaking is noticed.
Patch the nail or screw holes by slipping a piece of roof flashing underneath the shingle.
Mark those you find.
Cannot be washed off by water.
Locate the source of the leak on the roof then use a utility knife to slice through the rubber roof around the suspected trouble spot.