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The best types of ducts for a bathroom fan

A warm shower is a refreshing way to relax the body. However, the closed area of bathroom accumulates a large amount of moisture from the shower running water. Moisture appears like a mist around the bath, which requires adequate ventilation to the outside of the house. A bathroom fan and accompanying ducts need a specific location and to be designed for more efficient air movement.

Replacing the Fan

The bathroom fan must reside near the shower, but not right on it. An owner can use a search engine to locate tool plugs and the rafters before deciding on a location for permanent installation of the fan. The roof beams keep the upper structural frame of the building and cannot be altered. Designers can determine the best channel for the architecture of that particular building once the fan has a permanent installation location.

Composition duct

The best type of fan ducts for a bathroom is short and stiff. Corner Hardware suggests using sheet metal ducts for a smooth internal surface. The rigid and smooth surface allows faster movement of air from the bathroom to the outside, and dampens noise and air movement fan. The duct should be as short as possible to prevent moisture buildup inside.

Shape of the duct

The pipe diameter should not be less than 3 or 4 inches (7.5 to 10 cm) Hardware Corner says. A duct of smaller diameter reduces fan efficiency bath, causing additional noise and strain on the fan motor. Ducts should also remain as straight as possible. The multiple curves in the same hinder help the efficiency of air movement, which in turn reduces the efficiency of the fan to exhaust moist air from bath.

Attaching conduit

The conduits may leave the building in three different ways. The baths have no room in the attic above them moist air can vent through an outer wall. The bathrooms home with loft above usually tend pipes through a roof vent. A bathroom with a close ceiling or eaves, strategically hidden vent outdoors in the bottom of the structure of the suspended ceiling of the house, the owner must determine the best placement for the individual household conduit, while maintaining installation of short straight line, regardless of the position of the outer end ventilation.


Moisture trapped inside a bathroom contributes to the growth of mold on the walls and moldy tile grout; a strategically designed bath fan duct and the combination eliminates the sticky fog room, preserving the structural integrity thereof. Eventually, a bathroom with peeling paint exhibits as well as insufficient ventilation, possible to do damage to the underlying framework of wood and insulation.

Effective use of fan

Turn on the ventilator for at least 20 minutes after using the bathroom shower. This time period allows the fan vent humid air effectively. In fact, some bathroom fans are manufactured with timers. The owner sets the timer, allowing the fan to run and stop at a specific time, which is very useful when a person has to leave the house quickly after a shower.