Flexible Vs Sheet Metal Ducts

Flexible Air Duct Replacement With Round Sheet Metal Duct Air Duct Insulation Air Duct Hvac Duct

Flexible Air Duct Replacement With Round Sheet Metal Duct Air Duct Insulation Air Duct Hvac Duct

Start Collar Flex Duct Vs Sheet Metal Duct Sheet Metal Flex Duct Duct

Start Collar Flex Duct Vs Sheet Metal Duct Sheet Metal Flex Duct Duct

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Flex Duct Sizing Chart Lovely Duct Size Vs Airflow Part 1 Regarding Flex Duct Sizing Chart24391 Hvac Duct Refrigeration And Air Conditioning Hvac Maintenance

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Is Duct Cleaning Complicated Flexible Vs Rigid Ductwork Hvac Maintenance Heating Systems Clean Air Ducts

How To Seal Sheet Metal Duct With Mastic Sheet Metal Duct Work Duct

How To Seal Sheet Metal Duct With Mastic Sheet Metal Duct Work Duct

Flexible Duct Disconnected From The Duct Board Plenum Flexible Duct Duct Job Planning

Flexible Duct Disconnected From The Duct Board Plenum Flexible Duct Duct Job Planning

Flexible Duct Disconnected From The Duct Board Plenum Flexible Duct Duct Job Planning

Even when doing this the flex duct creates much more resistance.

Flexible vs sheet metal ducts.

Most of what s being installed in new houses now is flexible ducts because they cost so much less than rigid sheet metal ductwork. Flex can be good to help dampen velocity noises and it is relatively air tight but imo mastic on the old sheetmetal ducts covered by a good foil backed insulation is without question the best way to go old ducts or not. There s duct board rigid fiberglass with a foil facing but in my opinion that s worse than flex. I do agree with what ponytl said about possibly avoiding some duct loss with flex but possibly having duct loss due to flex.

That leaves rigid sheet metal often called hard pipe. I still don t believe in duct board. Air flow in a flex duct tends to tumble probably because of the rib like intrusion every inch or so. Flex ducts are better for existing trunk and branch heating and cooling systems.

Flex must be oversized at least one duct size. The installation of hard ducts is also more difficult because. If any duct product should be banned it s duct board. Alternatives to flex duct.

Rigid metal is installed then mastic is applied to air seal then insulation is applied on the outside so there is less chance of fibers getting into your air stream. Flexible ducts are good for air quality because you are not breathing in fiberglass insulation lined ductwork like the fiber air ducts and they are mold and rust resistant unlike galvanized sheet metal ductwork. Rigid metal is straight and smooth walled you have to work to crush or kink rigid metal. While sheet metal ductwork tends to be a better long term choice flexible ductwork has the advantage of relatively low upfront cost and versatility.

In comparison to metal duct flex duct is easier and faster to install. Their shape and size also allows them to be installed in locations that would not accept full sized sheet metal ductwork. While they tend not to last as long as sheet metal they are very cost effective. Flexible ducts are also the worst type of ductwork for airflow.

Well if we re not going to use flex what s left. Btw we did replace the rusted metal duct with new metal. Hard duct is probably the best but most won t pay the difference for it. Rigid metal is more likely to be installed without constrictions whereas flex duct can easily be pinched down.

Air flow in a steel duct tends to travel smoothly in a coil like motion. Flexible ducts are made out of corrugated plastic often wrapped in insulation. Flexible ducts are fairly easy to install and will often cost less than the rigid ductwork. This is because they re more versatile and flexible.

The inner liner ribs restrict airflow more than sheet metal ductwork but not significantly. Rigid metal is not easily damaged by rodents and uv light.

New Round Sheet Metal Trunk Duct And Flex Duct Branch Lines Sheet Metal Metal Trunks Duct

New Round Sheet Metal Trunk Duct And Flex Duct Branch Lines Sheet Metal Metal Trunks Duct

Supply Plenums Picture Gallery Hvac Ductwork Flexible Duct Shorewood

Supply Plenums Picture Gallery Hvac Ductwork Flexible Duct Shorewood

Duct Reducer Concentric Galvanized Sheet Metal Galvanized Sheet Sheet Metal

Duct Reducer Concentric Galvanized Sheet Metal Galvanized Sheet Sheet Metal

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Cfm Per Duct Size Chart Sizing Duct Ducts Ductwork Air Flow Flex Intended For Flex Duct Sizing Chart 243 Hvac Duct Refrigeration And Air Conditioning Duct Work

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Sheet Metal Ductwork Hvac Hacks Com Duct Work Hvac Design Hvac Hacks

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Flexible Air Duct Wire Helix Ribs Increase Air Friction Duct Work For A C In 2019 Duct Insulation Sheet Metal Insulation

Pinched And Unsupported Flexible Air Duct Flexible Duct Duct Air Duct

Pinched And Unsupported Flexible Air Duct Flexible Duct Duct Air Duct

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Tdf Duct Air Duct Refrigeration And Air Conditioning Air Conditioner Maintenance

6x5 Round Duct Reducer 6 To 5 Adapter Hvac Duct Galvanized Sheet Metal Flexible Duct

6x5 Round Duct Reducer 6 To 5 Adapter Hvac Duct Galvanized Sheet Metal Flexible Duct

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How To Install Round Sheet Metal Duct Plenum Start Collar Elbow Duct Flexible Duct Sheet Metal

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How To Seal Sheet Metal Duct With Mastic And Fiberglass Mesh Reinforcing Tape Photo Tutorial For Heating And Air Conditioni Duct Work Hvac Duct Duct Insulation

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Speedi Products 6 In Flex And Sheet Metal Duct Splice Connector Collar Sheet Metal Galvanized Sheet Metal Metal

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Hvac Ductwork Symbols Vertical Duct Variable Bend Duct Transitioning Reducing Duct Supply Duct Straight Duct Slidin Hvac Ductwork Hvac Duct Duct Work

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Global Portable Ventilation Fan 12 Inch With 32 Feet Flexible Ducting Ventilation Fan Portable Ventilation Fan Flexible Duct

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Kea General Information Sizing Within Flex Duct Sizing Chart 24391 Duct Work Flex Duct Hvac Duct

Pin On Products

Pin On Products

How To Install Round Sheet Metal Duct Duct Work Flexible Duct Duct

How To Install Round Sheet Metal Duct Duct Work Flexible Duct Duct

The Distribution Ductwork Is A Flexible Piping With A Smooth Inside And Ridged Outside Each Of The Heat Recovery Ventilation Energy Efficient Homes House Hvac

The Distribution Ductwork Is A Flexible Piping With A Smooth Inside And Ridged Outside Each Of The Heat Recovery Ventilation Energy Efficient Homes House Hvac

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Pin On Products

Speedi Products 16 In X 25 Ft Insulated Flexible Duct R4 2 With Metalized Jacket Fd 25r4 16 Heating Air Conditioning Fiberglass Insulation Flexibility

Speedi Products 16 In X 25 Ft Insulated Flexible Duct R4 2 With Metalized Jacket Fd 25r4 16 Heating Air Conditioning Fiberglass Insulation Flexibility

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How To Install Round Sheet Metal Duct Photo Tutorial The Poorly Installed Flexible Duct Is Replaced With Sheet Metal Duct Better Ho With Images Duct Work Sheet Metal Duct

Master Flow 4 In To 3 In Round Reducer R4x3 Galvanized Steel Hvac Duct Home Depot

Master Flow 4 In To 3 In Round Reducer R4x3 Galvanized Steel Hvac Duct Home Depot

Retaining Clip 150mm 6 Inch Support Bracket Plastic Ducting Exhaust Fan Exhaust Fan Kitchen Bathroom Fan

Retaining Clip 150mm 6 Inch Support Bracket Plastic Ducting Exhaust Fan Exhaust Fan Kitchen Bathroom Fan

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