Humber/Ontario Real Estate Course 3 Exam Practice

What damp-proofing methods are generally necessary for poured concrete?

1. Applying a waterproof coating inside

2. Using only above-ground treatments

3. Applying waterproof bituminous material and parging

4. Using traditional painting methods

5. Omitting damp-proofing as concrete is not porous

6. Relying on natural drainage systems

The correct answer is: Applying waterproof bituminous material and parging

The correct answer is applying waterproof bituminous material and parging, which are effective methods for damp-proofing poured concrete. Poured concrete can be susceptible to moisture because, while it is more durable and less permeable than other materials, it is still somewhat porous. Applying a waterproof bituminous membrane helps create a barrier against water infiltration, effectively protecting the foundation from moisture damage. Parging, which involves applying a coat of mortar to smooth the surface and add an extra layer of protection, further ensures that the concrete is resilient against dampness and water penetration. Other options do not adequately address the need for effective damp-proofing. For instance, relying only on above-ground treatments does not take into account the potential for moisture rising from the ground or lateral water movement. Traditional painting methods generally do not provide the longevity or reliability needed for significant moisture issues. Omitting damp-proofing overlooks the realities of concrete's interaction with water over time, and relying solely on natural drainage systems may be insufficient without additional waterproofing measures.