Relative humidity in homes / Guides

Condensation on windows leads to mold & mildew in homes, ERV & HRV systems help
Ventilation

Ventilation & air exchangers

...ing and cooling loads, but allows for smaller equipment. Additionally, ERV systems allow for maintaining the ideal relative humidity of 40% to 50% in indoor hom...

The importance of Cleaning HRV intakes
HRV and ERV

How to keep your HRV clean and operating efficiently

...ing by and getting sucked against the filter to cut your air intake by an easy third, so keep an eye out in the fall. If checking and cleaning mechanical e...

Poly vapour barriers in air conditioned houses can cause mold and rot
Healthy indoor air quality

Why you should Never Install Air-Con in a Home with a Vapor Barrier

...in the past, drawing in endless fresh air and removing moisture. You just kept pumping in energy to replace the heat that was escaping in every direction and al...

Icicles are an indication of heat loss, which can cause damage to insu
Wall assemblies - renovation

Winter troubleshooting - are you ready for the cold?

...ing inside on exterior walls: This can be caused by thermal bridges in the original framing, poorly installed insulation, or even the complete absence of i...

Better Basement Design on basement walls prevents mold and midlew
Healthy indoor air quality

Basement renovations: How to prevent mold when finishing basements

...relative humidity (RH) in homes should be kept below 60 percent - ideally between 30 percent and 50 percent, In addition to preventing mold forming, maintaining...

cold climat sk
Windows and doors

Skylights: an asset or a liability?

...ing envelope. New homes have ceiling insulation starting around R40, and finding them as high as R60 and R70 is not that unusual anymore, nor is that much insul...

Heat Recovery Ventilation - Lunos video
HRV and ERV

Lunos ductless air exchanger

...ing heat and humidity. Thus, in the manner of an ERV (Energy Recovery Ventilator), it helps to maintain the relative humidity of the air inside the house. ...

Exterior damp proofing and drainage mat to protect basements from wate
Insulation and soundproofing

Best practices for basement insulation in new home construction

...ing, along with allowing the original moisture contained in building materials to escape without causing damage. Different types of insulation are included...

Correctly installed Triple pane south facing windows on Ecohome's Demo House
Windows and doors

Installing doors & windows for the best performance in high efficiency homes, LEED & Passive House

...inds its way in will be directed to the exterior. Window flashings: after wrapping weather barriers into place and taping them down, install window flashing...

Problem areas of air leakage in a home and blower door test being cond
Air and vapour barriers

Balancing air pressure in a house: "Your house sucks." "Oh yeah? your house blows!"

...ing, forcing air in on some sides and forcing it out on others. Aside from being blocked by other buildings or planting a stand of evergreen trees, the only thi...

Finished basements can lead to mold and mildew
Healthy indoor air quality

Why are basements moldy? How to fix or Prevent a Moldy Basement

...insulated in a similar manner (Fugler, 2002) and from other researchers in the United States, notably in Minnesota (Ellringer, 2002). Continued use of these app...

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