That s because mold.
Roof leaks snd attic mold.
In this case the moisture buildup is indirect the roof leak only affects a small area but the dampness in the air causes condensation throughout.
Look out for the following.
In our roof interior attic photo at left you can see antique roof framing along with black stains and probably some mold growth from a long history of roof leaks.
Limited growth occurs when an attic has good enough ventilation to prevent condensation so moisture accumulates only in.
Mold in attic is fairly common because attics are often damp.
Some of the first signs of a roof leak include the following.
Even if your roof and windows don t leak though humidity in the attic can lead to the growth of mold.
That means that water and moisture is likely coming in through your attic and if the leak isn t resolved in a timely manner it could damage ceilings and drywall as well.
Systemic or limited growth.
Roof leaks can cause two types of mold growth.
Systemic growth occurs when the roof leak causes enough moisture buildup in the attic to cause mold growth throughout the entire area.
If your roof leaks or any attic windows leak you ve got moisture in your attic and probably need to consider attic mold removal.
Systemic growth occurs when the roof leak results in enough moisture buildup to cause mold growth throughout the entire.
Both can be hazardous to your health more on that later and both are definitely emergencies.
While this kind of water damage is never fun the good news is that at least you know what the problem is and can get it dried before mold starts to grow.
A leaky roof can pave the way for mold in a big hurry.
Brown or gray ceiling discoloration visible mold growth usually dark green brown or black a musty odor near the area of the roof leak.
When water enters the home and has the chance to stagnate mold spores begin to germinate within the moist surface.
Yellow or brown stains on ceilings wet spots on ceiling or interior walls leaking through windows or a fireplace warped or buckled woodwork a musty odor indicating the possible presence of mold.
Sometimes a roof leak is bad enough that water leaks into the floors below and becomes immediately apparent.
A roof leak can cause two separate types of mold growth.
Even in this case in our opinion the reasons to remove and replace roof sheathing and framing would normally be based on the condition of the roof framing and sheathing not on the presence of mold or stains.