Insulated Duct For Bathroom Exhaust Fan

Insulated flexible duct r6 silver jacket is used in standard heating and air conditioning hvac systems and some venting applications.

Insulated duct for bathroom exhaust fan.

For optimum venting use insulated 4 or larger metal ductwork rather than flexduct that may sag giving you areas that collect water and risk leaking into a ceiling below. The master flow 4 in. Insulating around a bathroom exhaust fan it s a diy project and if you love to do some small diy projects probably you already have all the things you need. Kitchen vent fans require metal ductwork for fire safety.

In un conditioned space such as an attic where otherwise your fan duct will be exposed to cold attic air in winter use insulated solid metal ducting or insulated flex duct. The duct has r6 insulation which contains 33 more insulation than the standard r4 2 product. This is non usable space and it is well ventilated with ridge and soffit ventilation so it does get cold in the winter. The building code requires a bathroom exhaust fan to vent outside the building so installation of a new bathroom fan necessarily involves installation of ductwork.

The ducting of your exhaust fan should be properly insulated. I used flexible 4 aluminum duct to the exhaust damper on the roof. I recently installed a bathroom exhaust fan. Solid metal vs flex duct for kitchen and bath vent fans.

This additional insulation provides greater thermal efficiency to save energy. The common solutions to this ice problem are to use a higher powered fan use a larger diameter shorter duct run and wrap the pipe with better duct insulation. You can also run the fan longer at least 10 to 15 minutes after showering is a good baseline so the ice melts or doesn t freeze in the first place. Otherwise the warm moist air will condense inside the duct.

Bathroom vent fan ductwork insulation insulate the bathroom exhaust vent fan ducts.