Flex ducts themselves do not sweat however if the.
Attic duct boot pictures.
I was thinking of using great stuff and sealing around the boot.
I will use a combination of doors and windows great stuff and the normal expanding great stuff.
The point about testing expansion is a good point to consider.
If the ducts are going to be concealed all seams need to be taped or caulked.
Slide the backing up and over the pipe.
Last month while i was in austin homebuilder extraordinaire matt risinger gave me a tour of some of his projects.
Btw they offer 5 year warranty on their work.
Pictures of the roof vents turbine vents.
There are two main ways to solve this problem.
The air in your vented attic is hot and humid just like all outdoor air in florida.
I ve searched the forum and it looks like i do not have insulated boots and when i went up to the attic today i noticed the boot was cold to the touch and had a small draft coming from where the boot meets the sheetrock of the ceiling.
Afterward i wrote about something i saw on his new home construction site that was a sign of a good duct installer.
It was new when the ac was put in 7 years ago.
Here s bob s trick for taping a seam on a pipe that s installed close to the subfloor.
When the hot humid attic air contacts the cold duct or the cold duct boot the moisture in the air condenses on the cold surface just like the condensation that happens on a cold can of beer.
Jump ducts which do not directly deliver conditioned air from the hvac unit may be located in attics if all joints including boot to drywall are fully air sealed with mastic or foam and the jump duct is fully buried under the attic insulation.
Either duct wrap the boots or foam them.
Air sealing all the ducts and air handler connections and seams and air sealing all the duct boots to the ceiling gypsum and any other penetrations is a critical first step prior to adding any insulation.
Secure the fiberglass insulation in place around the boot with foil faced duct tape.
Cut a piece of foil tape to length.
The next most typical type of duct systems is made of flexible duct.
Today i bring you a few photos that are signs of a bad duct installation.
The attic ductwork is flex duct work.
Finally pull down on the backing which will pull the tape along.
Peel off part of the backing.
Also they are detail oriented the clean up and rodent proofing work were completed with care.
This way there is no infiltration at this point.
They did a good job and the charge was reasonable.
4 if your round air ducts run below the joists lay one insulation batt on top of the duct.
A homeowner in atlanta was getting a home energy upgrade and one part of it was getting a.
The really bad news is that with old metal duct systems the only option is replacement of the ducts to stop the rain in the attic.
