How to prevent mould / Guides

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

Maintaining healthy indoor air quality

...to cancer is a title that has been applied to many common substances. This is meant neither to dismiss EMFs nor instill panic, but rather to tell you the issue is out there, and to help you make your own decisions. Humans have a long history of unknowingly exposing themselves to some pretty nasty things only to find ...

Real estate

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

...towards it? There should be at least a 5% grade away from the foundation so surface water will drain away and not towards your foundation. Does it have eavestroughs? They prevent splash back towards the house (this is a good thing), and the downspout water should be diverted safely away from the foundation to reduce ...

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

Ventilation & air exchangers

...to stop . This led to a build up of 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 an...

Ecohome's Kenogami House 'The Most Resilient Home in North America'
Concept and design

Resilient design features for new home construction

...to come by, along with manufactured pressed-wood logs that can be found at most hardware stores. Manually-operated pellet stoves: Most pellet stoves require power to feed the hopper. You could rig up a small PV solar panel to run it; optionally, there are a couple of models of pellet stove that don't use electric tha...

Insulating crawlspaces as part of home renovation
Crawl spaces

How to insulate crawlspaces properly as part of renovating an older home

...to empty it regularly it will stop working. The volume of water that will be produced by a dehumidifier is not so great in quantity that it necessarily needs to be directed to a drain, which likely won't even exist in a crawlspace. You can have it set it up to drain right into a small pit in the dirt below the membra...

Condensation on windows in our homes - why is it there? - how to stop it?
Walls and Roofs

Condensation on windows is a pain but is it a problem & how to stop it?

...to find out how to improve it if so, or see here for more information on insulating crawlspaces . To learn how to prevent mold in basements, see here – or how to prevent humidity and radon gas in crawlspaces see here . To learn how to build a home on a slab-on-grade foundation which is our preferred option, see here. ...

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

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

...too much or too little moisture in our homes. There are bacteria, viruses, 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 ris...

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

Basement renovations: How to prevent mold when finishing basements

...to be moldy, that is the first thing to realize. It's easy to build a basement better, or to finish an existing basement correctly , we just need to realize that they behave differently than above grade walls and to build accordingly to effectively deal with the humidity found underground - and by doing so, stop the ...

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

...to keep up with that. Vapor control measures that were originally intended to prevent walls from getting wet are now preventing them from drying. We know how to build walls better, but in a lot of cases we are prevented from doing so by regulatory bodies that have not updated codes to reflect better performing building...