Mildew / Guides

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

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

...mildew and mold marks in corners or behind furniture, for peace of mind consider buying a hydrometer to measure your indoor relative humidity, which will cost you maybe $20 to $30 at most hardware stores. If you have an issue, and the humidity levels are off the scale, then chances are you've got a moldy basement even ...

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

Ventilation & air exchangers

Homes built in the last 40 years in Canada are relatively airtight . Before that we generally relied on leaky uninsulated walls to provide fresh air and prevent mold and mildew, and they did that very well. Cost and comfort had us adding insulation, but not necessarily sealing our walls. The folly of this was quickl...

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

Maintaining healthy indoor air quality

...mildew in homes develops in conditions of high humidity , most often in bathrooms, kitchens and basements, unless caused by roof leaks and other building envelope failures. Along with affecting the durability of your home, mold and mildew can cause or aggravate allergies, asthma and respiratory illnesses which means we...

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

Best practices for basement insulation in new home construction

The most common practices currently employed for finishing basement interiors as living space rarely account for the impacts that come with the added moisture load below grade, or the amount of heat that will be lost to the ground. Existing basements are typically under-insulated or not insulated at all, and if they...

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?

...mildew – which usually makes an appearance as a cloud of little black dots around windows or in the corners of rooms. Condensation causes mold and mildew around windows As condensation occurs when moist air comes into contact with a colder surface like a wall, window, mirror etc. this is usually where we find...

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

Hemp building supplies

...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 waterways. Applications for Hemp constr...

DIY Natural Earth Pigment Paint, Making it at Home is Easy
Healthy indoor air quality

DIY recipe for natural healthy paint

...mildew growth, and biocides are used to extend the shelf life. But rest assured! All of this can be eliminated by simply making your own natural, long-lasting, sweet smelling and beautiful home-made paints. Supplies Needed: Drill with paint mixer attachment Mixing bucket Flour Borax Fine sand (optiona...

When should you replace windows
Windows and doors

When should you replace old windows?

...mildew as well. In such a case you may be wise to replace an individual window. The problem here is of course the 'slippery slope', in that replacing only one window on a wall may stand out, and replacing the windows on only one wall of the house may stand out. That's unfortunately your own demon to chase off; we can...

Energy modeling simulation of heat loss through thermal bridging
Efficient home design

What is a thermal bridge and why is it so important to break it?

...mildew and rot. Insulating exterior wall stud bays is not something we should stop doing, but we should not ignore the overall effect of thermal bridges when we add up all that wood, and we definitely shouldn't replace insulated wood frames with metal if it can be avoided. Using metal studs as a means of holding in...

MDF Formaldehyde Free Alternatives - Made from Rice Stalks
Healthy indoor air quality

The formaldehyde-free MDF non-toxic alternative made of natural rice-stalks

...mildew. To quote an amusing line from Joe Lstiburek who is likely the world’s most recognized building scientist, “Even old mold with no teeth can eat paper”. Engineered OSB floor joists, particle board cabinetry and countertops, laminate flooring products and paper-faced drywall are a few examples of materials we ...

Which House Plants are Best to Clean Air & Remove Toxins?
Healthy indoor air quality

Which house plants are best for purifying air? Ecohome investigates

...mildew, and due to the natural stack effect of air flow, mold spores from your basement will find their way into the upper floors of your home. The first step to dealing with basement humidity is to get a dehumidifier and try to keep the Relative Humidity level (RH) to below 50%. See our pages on why basements are mo...