Mould / Guides

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

Basement renovations: How to prevent mold when finishing basements

...moulds and mites that will show up on either end of the spectrum if your air is either too humid or too dry. As the EPA say, somewhere in the range of 35 to 5...

Net Zero Energy home
Off-grid and Net-Zero Housing

Net Zero Energy house in Edmonton, Alberta

...mould-free. The neighbouring home to the East is being constructed using 16” Double stud wood frame achieving an insulation value of R-56. Foundations: ...

Non-toxic building materials can improve home air quality
Healthy indoor air quality

Maintaining healthy indoor air quality

...mould problem, clean it with detergent. But mould will always come back unless you address the issue that caused it. See our pages on ventilation and air exchan...

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

Ventilation & air exchangers

...mould and mildew in homes. Modern day airtight homes need mechanical assistance to stop moisture damage and protect indoor air quality, especially true in basem...

Hemp fibreboard and Hemp insulation - the Green Building choice
Wood and organic materials

Hemp building supplies

...mould (or mold for our US readers), mildew and pest infestations in hemp board . The safer manufacturing process of hemp building materials not only reduces the...

Disposing of old batteries

Waste management: compost and recycling

...mould; it would be thoughtful to clean them out regularly. That is a simple matter of some vinegar and baking soda, a scrub with an old broom and a quick shot w...

Passive House in Quebec
Passive House

The Passive-Aggressive House - Our History of a Passivhaus Build

...mould. Another schooled me on how extra insulation is useless (a valid point in a conventional house with thermal bridges but not in a Passive House). Nor did a...

Air and vapour barriers

Aerobarrier home and attic air-sealing spray

...mould and rot. We recently had a chance to try out a product that at first sounds too good to be true, but one that actually lives up to its reputation. We co...

Shou sugi ban carbonized wood siding
Exterior cladding

Shou sugi ban carbonized wood siding from Japan, what is it & how to make it?

...mould. Fire resistance: Believe it or not, burning wood can give it flame retardant properties. Who knew? Insect resistance: Termites and other problematic ...

Real estate

Evaluating a home before purchase: how to recognize value and potential problems

...mould around the bottom since this can indicate how well they were installed, even the quality. Poor-quality windows will generate a lot more condensation and t...

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

Vapor Barrier + Air-Con = Damp Moldy Walls So here's a little known fact that most HVAC installers won't tell a potential new client for central air; Polyeth...