What is the primary purpose of dampproofing materials?

The primary purpose of dampproofing materials is to resist the passage of water through a structure. These materials are designed to prevent moisture from penetrating walls and foundations, helping to maintain the integrity of the building and protecting against mold, mildew, and other water-related issues. By creating a barrier against water infiltration, dampproofing plays a critical role in ensuring the longevity and durability of a structure.

While enhancing structural aesthetics, supporting live loads on roofing systems, and promoting heat insulation are important considerations in construction and roofing, they do not directly relate to the primary function of dampproofing. The key focus of dampproofing is to manage moisture and ensure a dry environment within the structure, underscoring its importance in building safety and maintenance.