How to properly install ductwork in an attic tip 1.
How to install heating ducts in attic.
Obtain foil face fiberglass insulation based on the sizes.
In this tutorial i am happy to show you how to properly install flexible duct to a register can for all you heating air conditioning ventilation do it your.
Overlap one side as you normally would and create a butt joint on the other.
One of the most common mistakes when installing attic ductwork is choosing.
This is an especially relevant tip for flex ducts more on that in a.
Give your ducts the proper support.
When hvac ducts are installed in a vented attic in a dry climate bury the ducts in attic insulation to protect them from temperature extremes in the unconditioned attic space.
But a contractor experienced in retrofitting can cleverly hide ductwork behind walls in the back of closets and up in the attic with minimal cuts into walls and the ceiling and very little mess.
Measure each run of exposed duct in an attic basement or under a subfloor.
Measure the size of all square rectangular or circular ducts.
For a house that needs ducts the costs and work time double.
Choose properly sized ducts.
Run a heating duct from the attic to the basement.
Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords.
There you have it.
The big advantage over a full rigid installation is sound control the installations are quieter than fully rigid ones.
If your supplier doesn t carry draw band connectors make your own by cutting a piece of pipe to overlap the ends and then screw and tape the band into place.
The trick to getting these installations right is to use rigid ductwork for all deviations from straight then pull the ductwork taut between the two ends which now point towards each other.