Gypcrete mold problems. Mold problems are increasingly common in homes and buildings, with concrete surfaces not being an exception. e. Synthetic roof underlayment can last up to 40 years but may break down when exposed to extreme temperatures and . Fix leaks and drainage problems: Ensure water flows away from slabs, not toward them. Gypcrete is notorious for creating mold issues in multi-family. Synthetic roof underlayment has become increasingly popular due to its durability and ease of installation compared to traditional felt underlayment. However, like any product, it also has its drawbacks. So, it makes sense to use a drywall moisture meter for testing gypcrete because these meters are specially made to test gypsum. Learn from the experts: How to identify concrete mold growth, how to clean it up, and most importantly — how to prevent it from coming back. Underlayment-related mold typically appears in ceiling corners and follows linear paths along roof framing members, while general moisture problems usually create more scattered patterns. rzc 3ym5la woij kcrws nd jhb0r 4ml4 zfx em sc