The vent is just above the area in the picture.
Black attic insulation.
Walls that are improperly insulated may develop mold because they will absorb moisture from outside.
If your attic or wall insulation is in batt or blanket form whether it s fiberglass cellulose or another material you generally don t have to be concerned about asbestos.
The 2 gable vents are the only venting.
It makes adding insulation to your attic a breeze.
On 2020 09 08 by mod.
The black color is not the color of the insulation.
The black facing is paper like.
Blown in insulation is installed using blowing machines.
The last pic you posted is loose fill rock wool so i d imagine that the blanket material in question is the same.
The area is over 2 bedrooms no moisture coming from below.
What does this mean.
Loose fill insulation comes in a variety of materials.
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Get a free 24 hour blown in machine.
In the attic the most common places to find black mold are the places where water is likely to be a problem.
The area in the attic that has turned black is right under the gable vent.
So any place you see black fiberglass dig down and look for where the air is coming from.
You get a free blown in machine rental with your insulation purchase.
The reason the fiberglass gets discolored is that it s acting like an air filter.
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Our climate is cold and lots of snow in winter but hot and humid in summer.
Is this mineral wool.
Insulation filters the air leaks from your house showing you signs of energy loss you might have noticed some black insulation in your attic or maybe around the perimeter of your basement where the house rests on the foundation.
The types of insulation that were most commonly made with asbestos are loose fill also called blown in insulation.