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Basement provides some extract space in the house, while crawlspaces are built to raise the level of the house to avoid flooding. This is why today, more than 35% of new houses are built on a crawlspace, and in some states like south Carolina and most coastal area, the number is over 80%.
Basements and crawlspace have a lot of advantages, however since most are either fully or partial underground, these space have lots of humidity issues. Most home owners spend thousands of dollars every year to repair humidity related damages.
Sign of high humidity in the basement or crawlspace.
In our over 30 years in water damage and restoration, we have realized that the most common mistake most home owners make is investing in repairs caused by humidity without fixing the cause of increased humidity in the house. It is important to control the sources of humidity.
What are the sources of humidity in basement and crawlspace?
There are three main sources of moisture in the basement :
Other indoor sources of moisture are :
The basement or crawlspace should become air seal all the vents should be maintained to ensure the outside moist air remains outside.
It is, therefore, important to ensure most of the rain water is collected and directed away from the house foundation.
You implement the following :
Am sure after hearing for some of these sources of humidity, you must be wondering how exactly the moisture moves into the basement or crawlspace.
Humidity movement into the basement or the crawlspace
Our water damage and restoration expert will tell you the only reason most homeowners will always have humidity issues in their basement or crawlspace is that these spaces are not well built and even those that are constructed well – they are still not built for handle any water drainage issues. Drainage and air circulation are the two most common of high humidity in the basement or crawlspace.
Moisture use four main mechanisms to get into your basement or crawlspace.
This process is, however, dependant on a few elements :
If not controlled capillary suction can lead the destruction of the home foundation.
The stack effect.
In reference to the air movement as a mechanism of humidity movement, the stack effect is the reason you can not ignore the high humidity in the basement or crawlspace.
The stack effect occurs when warm air rises and exists the house from the upper rooms, this creates a negeative pressure in the basement or crawlspace. This pressure force humid outside air into the basement or crawlspace through the vent, open sump pits and cracks. All sumps should be closed tightly.
Effects of the stack effect :
Once you have identified the source of humidity your should implement the following control measures:
Choose a basement or crawlspace dehumidifier that has a capacity capable of lowering the humidity level depending on the size of your basement or crawlspace and the level of humidity.
A basement or crawlspace dehumidifier will maintain the relative humdifty levels below 50%, hence your space will remain dry and mold free.
AlorAir Restoration Equipment offers a variety of equipment for all your restoration needs from water damage restoration to drying equipment. Including Commercial dehumidifier, Air Movers and Air Scrubber. AlorAir offers special dehumidifier for the basement and crawl space.