Waterproofing Techniques

noun A black or dark brown solid substance consisting of a mixture of hydrocarbons obtained by distillation of petroleum or shale, used in paving, roofing, and waterproofing.

• The workers were busy laying down fresh asphalt on the road.
• Watch out for the hot asphalt on the street, it can stick to your shoes.
• I can't stand the smell of that new asphalt, it's so strong.
• The project hit an asphalt wall when funding was cut off unexpectedly.

noun a watertight structure or container

adjective able to prevent the passage of water

• The contractor ensured that the building's foundation was watertight to prevent any leaks.
• Make sure you close the lid tightly so the container is watertight.
• I heard his excuse for being late, but it's not watertight.
• Her argument was so watertight that no one could find a flaw in it.