Always insulate the duct to prevent condensation problems as the warm air will be potentially running through cold ductwork.
Pictures of ways to support ductwork in an attic.
It was new when the ac was put in 7 years ago.
Recently i had another hvac company come out and put in a new bathroom vent and they told me they believed the duct work was full of water.
Repeat to insulate the remaining ducts.
Remember that article i wrote about ducts installed against the roof deck and how i said it was probably the absolute worst single location for installing ducts.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
Foam tubing or fiberglass will work but it s also possible to buy pre insulated 4 duct.
Up against the deck may be the worst place in the attic to.
Smooth rigid ducts with tape or mastic around all joints will prevent air leakage.
Flex duct requires the correct support to ensure it does not restrict air as it flows from the air conditioning unit to the registers distributing air throughout.
Attic hvac systems save space.
The attic ductwork is flex duct work.
How to hang flex duct in an attic.
I called out the original hvac company and they took a look and said they saw no water.
Wrap the insulation around the duct and then pinch the seam closed.
Apply a long strip of foil tape along the seam in the insulation.
So why put an hvac system up in the attic at all.
Well mainly it s a way to save space.
Secure the insulation with short strips of foil tape.