This fix for this situation is a no brainer.
How to fix moldy rafters in attic.
If you have mold in your attic air leakage and poor ventilation are likely to blame.
Another common concern with mold in the home is exposure to airborne mold spores.
Mold can weaken structural elements of your home like the rafters and roof sheathing.
Moisture enters your attic from the living space below and causes all kinds of problems including mold and wood rot.
A large percentage of attic moisture problems are caused by whole house humidifiers.
Turn the humidifier off.
If you don t find the source of the moisture in your attic and fix the problem it will only get worse.
By far the most popular diy mold killer is bleach.
If the house is too humid fix it.
Dbs can prevent attic mold using proper air sealing ventilation and insulation to limit the amount of warm air that s escaping into your attic.
Attic mold can deteriorate joists rafter and roof decking if left unchecked and it can grow on items that you store in the attic such as books furniture and clothing.
Mix a cup of bleach into a gallon of water and use that solution to attack the mold.
Attic ventilation is required by the building code but it s not a magic elixir.
Does adding more ventilation fix the problem.
Attics are one of the most common areas of mold growth in the home.
Mold growth in an attic comes as a consequence of excess moisture.
Air moving through an attic will help to remove moisture but this isn t the cure for a moldy attic.
Moldy insulation is usually wet and compressed which means it isn t doing its job.
This doesn t make attic mold remediation optional however.
While wearing a mask and gloves to protect yourself from both the mold and the bleach carefully apply the bleach solution to the moldy area.