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