Whether the installation is in the attic, crawl space, up above space, or else, our flexible duct experience when it comes to install , fabricate trunks , flex ,collars caps we do it all and most important at affordable prices.
Flexible duct calc should be sized and designed in according to ACCA Manuals D for residential flex duct systems or other ICC references standards supply loads should be calculated for each space on the heat or sensible cooling load using a duculator per ACCA Manual J ASHRAE Fundamentals.
If your load calculation is not according to code you will not be satisfied even with the best air condition system,moisture,discomfort even mold may be a factor.
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