Mould / Guides

Basement Design for walls prevents mold & midlew when renovating & finishing
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 50% relative humidity is generally assumed to be the best for avoiding most health risks and irritants. It’s high enough that you won’t have cracked furniture, c...

Net Zero Energy homes Edmonton Alberta
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: All three foundations will be constructed using I CF blocks with an additional interior wall for extra insulation. The result is a foundation with an R-40 insul...

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 exchangers for more information on home humidity. VOCs Volatile organic compounds form a large part of household chemical pollutants . Formaldehyde, benzene, tolu...

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 risk of exposure to VOCs in the home, it amounts to a reduction in the manufacturing of toxic synthetic materials, thus protecting global air quality and water...

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 any of them appreciate the inference that there was a “better way” to build than they’d been doing for years. Eventually, we found a builder who had completed ...

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 this can leave stains on the frame. (Significant condensation on windows can also be caused by high indoor relative humidity , the cause of this is also worth in...

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 consider this new technique to be an industry game-changer for building airtight homes, and it is extremely rare that we offer a product or technique such accolad...

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 insects hate burnt wood.​ Maintenance: If the intended use is to have it outside and exposed to weather (cladding, fences, long-lasting decking ), it shou...

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 basements where ventilation is essential to stop mold forming . There are still those that profess that walls need to breath and that 'houses are too airtight', bu...

Disposing of household waste properly - recycling, garbage & toxic materials

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 with a hose. Rinse out food containers to deter vermin, don’t over fill your bins, and keep them covered from the elements. The worker’s job is tough enough al...

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

Everything you need to know about Passive House certification

...mould ). The second principle is to optimize and balance energy gains by, for example, strategically placing the windows. The goal is to optimize solar heat at key moments of the day while avoiding the building becoming a furnace once the setting sun reaches deep into the house (balance). Choosing the right windows f...