Last month while i was in austin homebuilder extraordinaire matt risinger gave me a tour of some of his projects.
Attic duct boot pictures.
Slide the backing up and over the pipe.
Flex ducts themselves do not sweat however if the.
Either duct wrap the boots or foam them.
There are two main ways to solve this problem.
4 if your round air ducts run below the joists lay one insulation batt on top of the duct.
The air in your vented attic is hot and humid just like all outdoor air in florida.
A homeowner in atlanta was getting a home energy upgrade and one part of it was getting a.
Pictures of the roof vents turbine vents.
I will use a combination of doors and windows great stuff and the normal expanding great stuff.
Cut a piece of foil tape to length.
Secure the fiberglass insulation in place around the boot with foil faced duct tape.
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.
The foam does have an advantage in that while the boots are being foamed one can also seal the joint between the boot and where the boot is mounted ceiling wall floor.
I was thinking of using great stuff and sealing around the boot.
This way there is no infiltration at this point.
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.
It was new when the ac was put in 7 years ago.
Today i bring you a few photos that are signs of a bad duct installation.
They helped us replace air ducts and boots on the attic install a new furnace flue pipe bubble wrap the furnace plenum box seal all joints well.
Here s bob s trick for taping a seam on a pipe that s installed close to the subfloor.
Peel off part of the backing.
If the ducts are going to be concealed all seams need to be taped or caulked.
Afterward i wrote about something i saw on his new home construction site that was a sign of a good duct installer.
Flexible duct is a plastic tube that is reinforced with wire and then insulated on the outside.
Finally pull down on the backing which will pull the tape along.
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.
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.
Also they are detail oriented the clean up and rodent proofing work were completed with care.
The point about testing expansion is a good point to consider.
They did a good job and the charge was reasonable.
The attic ductwork is flex duct work.
