What are the specific temperature ranges favorable for mold growth?

The temperature range of 40 to 100°F is favorable for mold growth because it encompasses the optimum conditions that many mold species prefer. Mold thrives in warm, damp environments, and this temperature range provides the necessary warmth for metabolic processes to occur efficiently. Within this range, most common molds, including those found in households and buildings, can grow and reproduce effectively.

Molds can start to grow at temperatures as low as 40°F, but their growth rate increases significantly as temperatures rise. Conversely, temperatures above 100°F can inhibit mold growth by drying out the environment or denaturing proteins necessary for their development. Therefore, the range of 40 to 100°F is particularly significant for mold assessors to consider when evaluating potential mold issues in indoor environments.