During inspections I regularly come across mould in attics. Here is a short video showing a common cause and solution. They don’t spend a lot of time talking about it, however air infiltration into the attic is one of the biggest problems contributing to mould growth in the attic.
- Ensure that all bath vents are vented to the exterior and NOT inside the attic.
- Check that your clothes dryer vents to the outside and NOT inside the home
- If you live in an older home you should run a dehumidifier in your basement to help reduce dampness year round set to 45%.
- Insure that your attic door is sealed adequately to stop that warm air from the home getting into the attic.
- Insure that your soffits are not obstructed so that air can enter the attic from the outside and exit out of the roof vents up top.
- From the attic check that light fixtures and other protrusions are not letting air from the home get into the attic.
- Remember, your attic is not part of the conditioned space of your home and should be sealed from HVAC air and open to outside air movement.
- For small areas with mould you can sometimes kill it by mixing 1 part bleach and 3 parts water, and apply to the mold areas
- For professional mould remediation the cost in our area the average cost ranges from $3.50 to $4 per square foot
Below is a DIY video.
I have touched on just some of the key information. If you are in the greater Niagara/Hamilton areas, feel free to give me a call to schedule a inspection where I will provide you with an unbiased assessment of your situation.