Flex Ductwork In Attic

Just blow the attic to r 38 and over the top of ducts if needed.

Flex ductwork in attic. The next most typical type of duct systems is made of flexible duct. The right choice in ductwork for you likely depends on the specifics of the attic above your in law suite. Blown in insulation is cheap. How to hang flex duct in an attic 1.

The supports need to be at the manufacturer s recommended spacing but no longer than 4 maximum. Flex ducts themselves do not sweat however if the connection points are not sealed correctly and duct leakage is occurring then you can get sweating at those points. The straps that hold up the flex duct need to be no less than 1 5 wide. The lower the cooler it is.

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. Secure the webbing to the joist by hammering a 2 inch roofing nail through the webbing and into the side of the joist. The attic ductwork is flex duct work. It was new when the ac was put in 7 years ago.

Here are some advantages for each. They just tear through them smash them climb on. 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. Flex ducts on the other hand are smaller and tube shaped like giant shiny worms.

People can not carry ladders up into a attic and them place them onto 1 1 2 wide boards so they can climb over ducts. They both have advantages and disadvantages. The higher in the attic the hotter it is. Hold the loose end of a roll of duct support webbing against the side of a roof joist sitting directly above the flex.

This type of duct means a smoother interior with better air flow insulation applied on the outside to cut down on fibers getting into the system and a durable shell not easily punctured by rodents or uv light. Ducts are to be part of what is inside the house not part of. Ducts up high get tore up. Not part of what is in the attic.