Insulation, Radiant and Vapor Barriers - insulation and mildew in attic
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dave houlihan
01-08-01, 09:04 AM
I have a 100 year old farmhouse. When purchased 2.5 yrs ago, the attic was not well ventilated. There was much mold/mildew on the existing attic interiors opposite the roof. Note that the roof and shingles seem ok as new plywood was added when shingles were replaced about 5 yrs ago. No mildew on plywood, only on original roof boards. Added ventilation 2 years ago. There was also loose fill cellulose as insulation. The mildew stains still remain.
Question 1: Should I do something about the mildew stains, and what should I do?
Question 2: I would like to add, or substitute newer insulation in the attic. Should I be concerned about the pre-existing cellulose loose fill insulation since it was exposed to the poor ventilation (high humidity) and mildew/mold? Should it be removed? I do not notice any mildew or mold on the loose fill. Thanks!
Question 1: Should I do something about the mildew stains, and what should I do?
Question 2: I would like to add, or substitute newer insulation in the attic. Should I be concerned about the pre-existing cellulose loose fill insulation since it was exposed to the poor ventilation (high humidity) and mildew/mold? Should it be removed? I do not notice any mildew or mold on the loose fill. Thanks!