I was thinking of using great stuff and sealing around the boot.
Attic duct boot pictures.
Also they are detail oriented the clean up and rodent proofing work were completed with care.
Because my roof was a 3 12 pitch the attic space is real cramped and the supply ducting filled it up leaving little room for the return ducting.
Either duct wrap the boots or foam them.
They are usually the same size as the loop duct.
Even if the duct and boot have some insulation these components are rarely sealed.
I made a foam mock up of the inside of the duct starting with a base and 19 round.
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.
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.
Only older heating only systems have uninsulated boots.
Supply duct system locations decisions regarding the location of a supply air dis tribution system should be made based on the.
They did a good job and the charge was reasonable.
Btw they offer 5 year warranty on their work.
Size duct the loop is fed by four or more ducts radiating out from the central plenum.
Wooden house with metal roof attic air duct balcony roof gutter duct specialist installing air vent system.
Duct losses to outdoors.
As most of the duct installs here are in the attic with insulated boots it then becomes the hole where the boot pentrates the ceiling that becomes the dewpoint concern.
Wooden house with metal roof attic air duct balcony rain gutter.
The boot boxes are sized to deliver the proper cfm to each room of the structure.
Pictures of the roof vents turbine vents and attic from both the interior and.
Attic ducts buried in cellulose cz5a cz6a.
I will use a combination of doors and windows great stuff and the normal expanding great stuff.
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.
Ventilation specialist assembling air duct pipe system in attic of new construction of residential building male contractor binding ventilation pipes with duct tape.
Oversized cuts for boots that are not mastic sealed.
The best solution was to make a custom return duct boot filter holder.
The following pictures show the process.
This way there is no infiltration at this point.
The point about testing expansion is a good point to consider.
When you put a duct and a duct boot in the cavity you don t have room for insulation.
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.
