The difference between an HRV and an ERV / Guides

Passive House certification - PHI or PHIUS? The Spring House Passive House
Passive House

Everything you need to know about Passive House certification

...an their counterpart in the south. Were one to give a pair of sandals and a pair of winter boots to an Alaskan and a Hawaiian, would it be reasonable to expect them to use each pair for six months of the year? If an equivalent amount of energy and resources went into creating the pair of boots and the pair of sandals...

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

...ane. Don't attach windows by putting screws through the shims. Put the screw either just above or below, then remove the shims when the window is secured. Shims will offer little insulation value, and are most likely wet when purchased and installed, so as they dry they will shrink and allow air to leak out and in. ...

What is Interstitial Condensation? (And how to stop it!)
Walls and Roofs

What is Interstitial Condensation in Walls or Roofs? (And how to stop it!)

...and around baseboards and any junction points in walls. Corrosion of building components. Frost damage to exterior finishes, roofs or masonry. Poor performance of insulation and reduced thermal resistance of other elements of the building fabric. This in turn can reduce the temperature of the building fabric, exa...

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

Ventilation & air exchangers

...ERV system pre-cools and dehumidifies while in the winter season ERV systems humidify and pre-heat incoming air from outside the house. One benefit of using energy recovery in the USA is the ability to meet the ASHRAE ventilation and energy standards, while improving indoor air quality and reducing total HVAC ratings a...

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

...and also cooled during hot months, that vapor barrier is on the wrong side of the wall assembly for several months of the year. If you live in a land of endless winter, an interior polyethylene vapor barrier is a great idea. While it might seem like that in most of Canada and the northern parts of the US at times, th...