Crawl space
![](https://secure.gravatar.com/avatar/f29311082b9f34b74c190c6e117e3cc1?s=52&d=https%3A%2F%2Fimages.greenbuildingadvisor.com%2Fapp%2Favatars%2F200x200%2Fh.png&r=g)
I wanted to insulate my crawl space, and a contractor suggested a humidifier with dedicated electrical hook up. I am not sure which one to choose or do both as I am not sure a humidifier is good enough to replace an insulation.
Thanks in advance. herman.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part
![](https://www.greenbuildingadvisor.com/app/themes/greenbuildingadvisor/dist/img/modules/detail-library/thumb1.png)
![](https://www.greenbuildingadvisor.com/app/themes/greenbuildingadvisor/dist/img/modules/detail-library/thumb2.png)
Replies
Hermon/Herman,
I doubt if your contractor suggested that you install a humidifier in your crawl space. Your contractor probably suggested something else -- a dehumidifier.
The purpose of a dehumidifier is to lower the relative humidity (moisture level of the air) in the room where the dehumidifier is installed. Insulation has a different purpose. Insulation is installed to reduce heat flow through a floor, wall, or roof.
Where are you located? What problem are you trying to solve?