How To Install Ductwork In Attic

Measure the size of all square rectangular or circular ducts. In this video i use mastic and air duct sealant t. Recently i had another hvac company come out and put in a new bathroom vent and they told me they believed the duct work was full of water.

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In addition to comparing ducts in the attic to ducts inside the building envelope roberts and winkler also looked at electricity savings of other measures such as adding insulation installing better windows and using higher efficiency air conditioners.

How to install ductwork in attic.

I called out the original hvac company and they took a look and said they saw no water. Overlap one side as you normally would and create a butt joint on the other. There you have it. One of the most common mistakes when installing attic ductwork is choosing.

Richard trethewey is in the basement where the ductwork is being connected and installed by hvac contractor obie rosa and his crew. Measure each run of exposed duct in an attic basement or under a subfloor. The vent should be installed under the first course of shingles and sealed to the sheathing and installed according to the manufacturers specifications. Choose properly sized ducts.

The attic ductwork is flex duct work. I ll show you how to get the job done right. Give your ducts the proper support. This is an especially relevant tip for flex ducts more on that in a.

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. It was new when the ac was put in 7 years ago.

Use a draw band connector to complete the butt joint. How to properly install ductwork in an attic tip 1. Installing flexible or insulated duct is an easy diy project. When installing the roof vent try to keep it the most direct route to the outside preventing sharp turns in the ductwork where condensation can build up.

Obtain foil face fiberglass insulation based on the sizes. Richard and obie show kev.

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