Answer:

If there is a roof leak, watermarks will often appear on the interior ceiling. First locate the damaged/leaking area on the roof. Clean on and around the damaged/leaking area.

Remove all old chalking/cracking elastic waterproofing and paint.

Apply Peralin Paints Repair Compound on the cleaned surface areas as per Peralin Paints specification. After this preparation, we recommend you to overcoat with Pera Cool Roof, for a long lasting durability.