Sometimes, installing a ceiling mounted exhaust fan is simply not feasible. For instance, if you have a downstairs bathroom that lacks ceiling space and only has the floor above, it becomes impractical to install a ceiling fan in such a scenario.
Similarly, if you have a flat roof with minimal clearance between the ceiling and the roofing material, cutting a hole for a vent can pose the risk of water leaks. It is generally advisable to avoid cutting holes in flat roofs whenever possible to prevent such issues.
In situations where a ceiling fan cannot be installed, wall and window exhaust fans offer viable alternatives. These fans can be mounted on the walls or windows to effectively address the lack of roof space. However, it is important to note that there may be other challenges associated with these options.
When opting for a wall or window exhaust fan, it is necessary to install it on an external wall. Since most rooms have only one external wall, finding a suitable location on that particular wall becomes crucial for installation.