Texas Mold Remediation Contractor State Practice Exam

What type of insulation is specifically recommended to discard when clean water has caused damage?

1. Foam insulation

2. Cellulose insulation

3. Mineral wool insulation

4. Spray foam insulation

The correct answer is: Cellulose insulation

When clean water has caused damage, the specific recommendation is typically to discard cellulose insulation. This is due to cellulose’s composition; it is made from recycled paper products, which can absorb water. Once cellulose insulation is wet, it creates an environment conducive to mold growth, as it retains moisture, making it difficult to dry effectively. This not only compromises the insulation’s thermal efficiency but also poses health risks due to potential mold spores being present. In contrast, foam insulation, mineral wool insulation, and spray foam insulation are generally more resilient to moisture. Foam insulation does not absorb water as cellulose does, while mineral wool is water-repellent and typically maintains its structural integrity even when wet. Spray foam insulation also provides some moisture resistance, depending on the type used. These characteristics make them less likely candidates for needing to be discarded after exposure to clean water.