Flex Ductwork In Attic

The straps that hold up the flex duct need to be no less than 1 5 wide.

Flex ductwork in attic.

Just blow the attic to r 38 and over the top of ducts if needed. 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. 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. 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 attic is a hot dirty nasty place. 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 supports need to be at the manufacturer s recommended spacing but no longer than 4 maximum.

Flexible duct is a plastic tube that is reinforced with wire and then insulated on the outside. Not part of what is in the attic. Hold the loose end of a roll of duct support webbing against the side of a roof joist sitting directly above the flex. The next most typical type of duct systems is made of flexible duct.

It was new when the ac was put in 7 years ago. How to hang flex duct in an attic 1. 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. The higher in the attic the hotter it is.

The official recommendation from the adc is that flex ducts should sag no more than 1 2 per foot of length between supports. Here are some advantages for each. The right choice in ductwork for you likely depends on the specifics of the attic above your in law suite. They just tear through them smash them climb on.

Ducts are to be part of what is inside the house not part of. The attic ductwork is flex duct work. Ducts up high get tore up. The lower the cooler it is.