The good news is with a flex duct system we can either hand seal the connection points or perform an aeroseal to stop the water.
Black spots flexible ducts attic.
The sun would come out melt some ice and it would find it s way to the nearest hole into the house.
If you notice black dust around your air vents this could be a sign of black mold growing within.
Your home s ductwork is located in unconditioned spaces like attics and behind walls where all kinds of dust and dirty insulation abounds.
When ductwork is touching it forms a very cold spot where they are touching thus condensation begins.
Black dust around air vents.
Ductwork located in an attic must be hung properly so that the insulation can do its job.
The last usual cause for condensation on a duct system is if the ducts are not properly hung or they are touching each other.
Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords.
Dark dust is blowing into your home.
You may have black mold in your air ducts if you notice any of the following signs.
Confirm that the black particles are actually mold spores through a lab test.
If the register is closed the air is forced along the ceiling and the next thing you know you ll start to see black buildup across your ceiling.
Black mold has a distinctive unpleasant musty smell.
The flex ducts were literally filled shut with ice in the low spots compressing the scant insulation layer beneath them.
Use metal flex or fiber board ducts that are insulated to.
The black dust may be patchy and difficult to wipe off.