Ventilation is the best way to keep a room fresh and healthy to live in. This is especially true for bathrooms. Your bathroom in the home must have proper ventilation to prevent it from becoming a breeding place for germs and bacteria. It only takes 24-48 hours for mold and mildew to begin to grow in places where there is too much moisture.
The bathroom is the place where you bathe, shower and use lots of hot water, so it is a natural place for excess moisture. This can lead to mold, mildew, water damage, and they can even damage your home's foundation and structural integrity. Aside from these, your bathroom will develop unpleasant odors. To remedy these faults you have to put proper ventilation in your bathroom.
The most practical way to ventilate your bathroom is by opening a window and letting air circulate. You could also open a window slightly when you are showering, bathing, or using the bathroom, but this is not always practical. However, you could leave the curtain or sliding doors and the bathroom door open when you are done using it so that you can avoid moisture and odors. Do not put carpet in your bathroom.
An exhaust fan would also be an excellent way to eliminate odors and get air circulating in your bathroom. Make sure your fans are located near the shower or the toilet for proper ventilation of the bathroom. Also, ensure that the fans are located away from the fresh air that will be needed to help ventilate the bathroom. If need be, create a little more space beneath your bathroom door to allow the fresh air needed for the exhaust fans, to enter the bathroom.
Allow the exhaust fan to run at least 20 minutes to properly ventilate the bathroom after using the shower or bath. Use the fan timer so it will turn off automatically.
It is important that vent fans be installed properly. A common mistake is that they do not exhaust the bathroom air out of the house but end up redirecting it into the attic, allowing the mold and mildew to infest the house elsewhere. The air must be vent outside of the house, sending it back to Mother Nature.
By the way, air conditioning will keep humidity levels in the home at low levels, and this will aid in drying and in eliminating bad odors, especially those humid, musty odors that can be so unpleasant. This can help ventilate your bathroom and keep it dry as possible.
The idea is to always give the bathroom the opportunity to dry out before mold and mildew can start to grow, and before water and excess moisture begin to damage your home.
The longer you keep everything dry, the less time unpleasant things have to grow and cause damage.
The HVI or Home Ventilation Institute gave these following guidelines for bathroom ventilation:
For bathrooms that are exactly 100 square feet, it is recommended that the exhaust fan gives 1 CFM per square foot to correctly regulate air in the bath, and should have a speed of 40 CFM.
For baths which are larger than 100 square feet, the ventilation rate must be based on the amount of bathroom furnishings present. The rates are as follows: toilet - 50 CFM, shower - 50 CFM, bathtub - 50 CFM and jetted tub - 100 CFM. You may install separate fans for each item in the bath or have one big fan equivalent to the required rates.
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