Take care of your attic hvac air ducts too.
Ceiling no attic without drywall mold.
Closing in the ceiling too quickly may trap moisture that can foster the growth of mold and mildew.
Next take a look at your attic.
But if after it dries the drywall feels loose or spongy to the touch it should be removed and patched in with a replacement piece of drywall.
It depends on how deep the mold has grown.
Purchase an inexpensive rh meter and monitor the humidity levels in the room.
Condensation on your ceiling can cause water damage and promote the growth of mold or mildew.
However if you find no end to the mold it is likely feeding on the drywall and the drywall needs to be removed completely.
How to fix ceiling condensation.
Applying mastic gum to the duct joints and adding an r6 layer of insulation around your sheet metal ducts goes a long way toward protecting your attic and ceiling.
Suggestions for un vented or hard to vent building roof cavities.
Mold can grow anywhere that there was water damage meaning in your drywall insulation and even in your floorboards and ceiling beams.
Water soaked drywall often will dry out fine if it gets proper ventilation.
Warm air escaping from a duct into a cold attic can create condensation and encourage mold growth.
Under the right conditions mold can begin to grow in as little as 24 hours.
If it is and you plan to provide heating and cooling to the finished attic space you need to remove.
How to avoid condensation leaks attic mold insulation mold structural damage to roof framing when roof venting is not possible cathedral roof and knee wall insulation venting air path options in older homes hot roof designs.
The attic floor which is the ceiling of the living space below often already is insulated.
Improper ventilation and insulation of home attic space can produce.
The 3rd potential cause is ghosting which is not actually mold though it can look very similar.
It s important to do a thorough inspection of the nearby area to determine if mold is present.
If you can use a wide spackling knife and scrape the paint and if no mold shows at the lower layer then you do not need to replace just clean off the mold.
Worries about the hot roof un vented cathedral ceiling designs how to.