Does Your Bathroom Fan Suck up Toilet Paper? It Should.

Have you noticed that your bathroom fan isn’t quite sucking out the humidity quite like it used to?

It might be time for an upgrade. A classic, simple DIY trick is to hold up a piece of toilet paper to the whirring fan. If the TP won’t stay in place, the fan isn’t pulling its weight (or pulling out much of anything).

If your bathroom doesn’t have a fan, it’s a good idea to put “bathroom ventilation” near the top of your home reno to-do list. Not only can the moisture left over from baths or showers make mildew or mould grow in your corners, causing paint and/or wallpaper to peel off  — but  over time, the accumulated moisture can also inflict water damage on your drywall and even make its way into your structural beams and joists, affecting the structure of your home.

Choosing the Right Ventilation System

Measuring Space

Ventilation is measured in the cubic feet per minute (CFM) at which air is moved through a vent system. According to the US-based Home Ventilation Institute (HVI), an exhaust fan should provide one CFM per square foot for a small bathroom. So for example, a bathroom measuring 50 square feet should have a rate of 50 CFM. For larger bathrooms (100 square feet and up), CFM rates are measured according to the number and kind of electrical fixtures in the room — see the HVI bathroom ventilation page for details. CFM rates are indicated in a product’s technical specifications.

Understanding Duct Pressure

Static pressure: this is the resistance that the air will encounter when flowing out. If the air ducts are too small in diameter, have too many “elbows” or are simply sloppily installed, the CFM will be counteracted by higher static pressure. Check that your fan’s CFM is calculated at 0.25 i.w.c. (inches of water column), and ensure that the duct path is as simple and straight as possible.

Noise

Sones is a measurement of loudness. You probably don’t want an annoyingly loud fan. The lower the sone rating, the quieter the fan.

Energy efficiency

Fans use energy, and the more powerful they are, the more they’ll add to your hydro bill. Make sure to look for an Energy Star model.

For added comfort, look for products that are certified by the Home Ventilating Institute (HVI), an institute that qualifies products on a rating system.

Once your fan is installed, remember to run it for a good amount of time after your bath or shower. (HVI recommends 20 minutes, though other experts say 5-10 is fine).

More tips for bathroom ventilation

  • If you prefer to keep your door closed while the fan is on, make sure the door is undercut so that fresh air is flowing in to replace the moist air going out!
  • You can also install a fan with a timer, if you choose, in order that the fan cuts out on its own after 10 or 20 minutes.

Water and humidity can be your home’s greatest enemy. Make sure you take the time to make sure your home is well ventilated. You won’t regret it!

Not sure if your home has already grown mould from excessive humidity? Do an air quality test to find out. Call to book: 514-426-1095

Mose Home Inspection Services
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Lay Chan Wee
Lay Chan Wee
01:19 31 Aug 21
I was impressed with the service provided by Rui Su. He was organized, explained in detail area that I am not familiar... with. He provided a good report. I will recommend him if you need home inspection.read more
Mary Jane Caro
Mary Jane Caro
14:25 27 Aug 21
I am always pleased to recommend Carol Mose from Mose Home Inspection Services to my clients who have had offers... accepted on residential real estate properties. She is knowledgeable, thorough, provides clear explanations, and delivers comprehensive reports.read more
Massimo Pannunzio
Massimo Pannunzio
22:05 25 Aug 21
Michael has got to be on of the best home inspectors in all of Quebec. It was amazing working with him and he had my... best interest at heart when making a life changing decision. He made sure I had all the answers and made it easy to work with him. I will be using Mose inspection for any moment that I need an inspection done that's for sure!read more
Amanda Lee
Amanda Lee
19:14 16 Jun 21
Amazing experience with Carol Mose who helped me with a pre-purchase inspection! She was very approachable and... observant, and informed me of all her first impressions on-site. This gave me greater understanding of any conditions as I was able to ask any quick questions on the spot. Her reports are the most thorough that I've seen and include diagrams to help explain what any physical signs mean and potential consequences. Could not have asked for a better inspector!read more
Maeghan Banks
Maeghan Banks
15:38 14 Jun 21
Carol was wonderful to work with for our pre-purchase inspection. She was professional, thorough and communicative,... taking the time to explain her findings as we went through the house. After the inspection, we felt we had clear knowledge of the condition of the house (both pros and cons), allowing us to move forward with the purchase with confidence. Highly recommend!read more
Ryan Chalupovitsch
Ryan Chalupovitsch
13:43 01 Jun 21
Carol Mose is the best home inspector in the business. Approachable and extremely knowledgeable. She did an... inspection for me and really took the time to explain her findings and help me understand the home I was looking to purchase. Cannot recommend her enough. Don’t hesitate.read more
Elisabeth Faure
Elisabeth Faure
21:16 29 Apr 21
This is the second time I have used MOSE, and they are always really amazing. Very nice, very professional. they came... to have a look at my roof and let me know if we were due for a repair - I was very satisfied with everything and would recommend them to anybody!read more
Hannah S
Hannah S
22:05 16 Apr 21
I had a great experience with Mose home inspection. My husband and I are first time homebuyers and so had a ton of... questions about the process. Everyone we talked with was really informative and helpful. Michael was our inspector and was phenomenal. The inspection was very thorough and he explained everything in detail with realistic next steps for us to take. We came out of the inspection feeling really informed. Plus, he is just an absolute delight! He had very contagious enthusiasm and made the inspection a really positive experience. Would highly recommend!read more
Gabriel Lukuc
Gabriel Lukuc
03:05 16 Apr 21
Michael was amazing. He took the time to explain to us what’s really important and the reasoning behind it. We’re not... very handy nor savvy when it comes to home construction so we really appreciate him taking the time to explain to us all aspects of the inspection. Also, Michael was friendly, professional and timely; he provided the report over a holiday and a weekend.read more
Stephanie Ballard
Stephanie Ballard
14:24 19 Mar 21
MOSE is the best in the business. Once again we were happy with their inspection services - they are professional,... friendly and knowledgeable. Would not hesitate to recommend to friends and family (and have)!read more
Rodrigo Morales
Rodrigo Morales
18:27 10 Sep 20
Home inspection
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