Water Damage Restoration Technician (WRT) Certification Practice Test 2026 – Your All-in-One Guide to Mastering the Exam!

The term 'highly porous materials' specifically refers to materials that have numerous tiny pores or spaces, which allows them to absorb and hold water. In the context of water damage restoration, affected carpets and padding are key examples because they can quickly absorb excess moisture, making them susceptible to mold growth and other issues if not dried properly and promptly.

The structure of carpets and their underlying padding means they retain water, which can lead to further complications in water damage scenarios, such as lingering odors or damage to subflooring. Understanding the properties of highly porous materials is essential for effective water damage assessment and restoration, as these characteristics dictate the restoration approach and techniques to be used.

In contrast, while wood and concrete are somewhat porous, their level of porosity is not as significant as that of carpets and padding in this context. Metals and plastics have very low porosity and do not absorb water in the same manner, making them less relevant in terms of water damage restoration. Similarly, glass and ceramics are non-porous materials that do not absorb moisture, so they are not included in the definition of highly porous materials.