There are three main issues described in the document:
1. The roof has drainage pipes on only one side that get clogged during rainy seasons, causing water to stagnate.
2. There is no easy way to access the roof to clean it.
3. The stagnant water seeps inside and drips from the ceiling, which could damage computers and machines in the lab below.
Some potential solutions are proposed:
1. Install an access gate to the roof through the front corridor on the first floor.
2. Provide a temporary external staircase for access to the roof.
3. Repair or replace the broken grill.