01-25-2008, 03:18 AM
Mold is a living organism and requires food, water and air to survive. Cement provides no food and is highly alkaline a PH factor that generally inhibits mold. Something else must be feeding the mold in the described situation. Often the paper on drywall is the food source (cellulose - wood fiber).
That said it must be recognized that in this climate mold can grow on glass if dirt accumulates. I think the hollow voids in the wall you describe were not clean or filled with some inappropriate material. Also it is possible some organic contaminant was used in the mortar or grout.
My 2 cents.
That said it must be recognized that in this climate mold can grow on glass if dirt accumulates. I think the hollow voids in the wall you describe were not clean or filled with some inappropriate material. Also it is possible some organic contaminant was used in the mortar or grout.
My 2 cents.
Assume the best and ask questions.
Punaweb moderator
Punaweb moderator