1. Caulking gun.

2. Urethane Caulking.

3. Polyester fabric (ty-tex tape)

4. Elastomeric roof coating and paint brush.

The first step is to clean the area of repair and apply the urethane caulking.

Parapet wall split

Step 2. Apply a heavy coat of elastomeric roof coating to repair area.

Apply elastomeric roof coating

Step 3. Lay the polyester fabric across the repair area make sure the fabric runs past the repair area at least 2 inches on all sides.

Polyester fabric

step 4. Apply 1 more coat of elastomeric roof coating on top of the polyester fabric and brush or roll the coating in.

Apply one more coat of elastomeric coating

Now the repair is finished this is what it should look like.

Finished wall repair

Doing this kind of repair yourself can save you alot of money. The leak was obvious and now you can do it yourself. A leak like this can end up in hundreds if not thousands of dollars in damages. Regular roof  inspections can and often find these kinds of problems before they cause any damage from water intrusion.