Humber/Ontario Real Estate Course 4 Exam Practice

What does a builder typically indicate about damp-proofing for townhouses?

1. Damp-proofing isn't needed for poured concrete

2. It's required with a waterproof material and parging

3. Treatment is limited to above grade levels

4. It can be effectively achieved by interior wall paint

The correct answer is: It's required with a waterproof material and parging

A builder typically indicates that damp-proofing for townhouses involves the use of waterproof materials and parging. This is because proper damp-proofing is essential in preventing moisture intrusion which can lead to significant structural damage and issues within the living space. By applying a waterproof material in conjunction with parging, builders create a barrier that effectively protects the foundation walls and ensures that water does not penetrate the interior of the home. This approach is widely recognized as best practice in the construction of townhouses, especially in areas with high groundwater levels or significant rainfall. The other options do not provide accurate representations of best practices in damp-proofing. For instance, the assertion that damp-proofing isn't needed for poured concrete overlooks the necessity of protecting even sturdy materials like concrete from moisture. Likewise, limiting treatment to above-grade levels neglects the importance of addressing below-grade moisture that can infiltrate through foundations. Lastly, suggesting that interior wall paint can effectively achieve damp-proofing is misleading, as paint alone does not provide the necessary waterproof barrier that will protect against dampness and potential water damage.