Removing MoistureJune 24, 2008
Q: I am having a problem convincing my tenants to leave their bathroom exhaust fan on long enough after they bath or shower. Moisture is accumulating on the windows and there are signs of water drips on walls as well as some paint peeling in the bathroom window sill. They have said that the fans are too noisy to keep running. What can I do to ensure the fan is venting until the moisture is totally removed?
A: Bathroom ventilation is very important in protecting your bathroom against problems caused by too much moisture such as peeling paint and mold forming. To ensure the correct operation of an exhaust fan, remove the single pole toggle switch and replace with an electronic de-humidistat which will enable you to set the required relative humidity level and will automatically turn the fan on if the humidity level is over the humidity setting. For example: For outside temperatures over 0 Degrees Celsius the de-humidistat should be set at 40% relative humidity, For -12 to -18 Degrees Celsius the setting would be 35% and in the summer months you would set at 50% relative humidity.
Consider replacing the fan with a quieter and more efficient one. Chances are the quieter the fan the more it will get used. Two things to consider when choosing a new fan are the CFM and Sone levels. Sound levels are measured by an industry standard called a "Sone.” The lower the sone, the quieter the fan. The best fans have sound ratings of 1.0 Sone or less. Units that produce more than 4 Sones or more should be avoided. However, the price goes up as the noise levels go down. For a fan to be effective at removing humidity it needs to be able to move a sufficient amount of air. To choose the proper unit for your bathroom, the rough guide of airflow is one CFM (cubic foot per minute) per square foot for bathrooms of one hundred square feet or smaller. For example, with a sixty square foot bath, you'll want a fan with a rating of 60 CFM or more.
- Tips to get new life out of your old deck - The Province, May 19th, 2013
- Don't dicker about decks - The Province, May 12th, 2013
- Getting all decked out - The Province, May 5th, 2013
- Save energy, money with kitchen renos - The Province, April 28th, 2013
- Know the facts on contracts - The Province, April 21st, 2013
for more certified home service providers
We are happy to be a drop-off location for Ruben's Shoes.
Date: April 9 2013
Every Sunday @ 10AM PST - Watch and listen to Shell in studio answering your email questions!
Date: May 26 2013
GVHBA’s 20th annual Parade invites public to tour professionally renovated homes
Date: June 9 2013