Lstiburek / Guides

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

...Lstiburek This article was inpired by building scientist Joe Lstiburek, one of the most globally trusted and well-known names in building science who has left an indelible mark on the building codes of the United States, and in our opinion they are much better off for it. Canada has regrettably not yet taken his ad...

Vapor retarder latex primer instead of polyethylene sheet
Air and vapour barriers

Replacing polyethylene vapour barriers with latex paint vapor control

...Lstiburek, Principal of Building Science Corporation The USA & Canada has many climatic zones, so there is not one building envelope that can possibly serve them all. The automatic installation of a polyethylene vapour barrier in every home from the Hudson Bay to the vineyards of Southern Ontario to the deserts...

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

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

...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 put in our homes that can are more susceptib...

Basement Design for walls prevents mold & midlew when renovating & finishing
Healthy indoor air quality

Basement renovations: How to prevent mold when finishing basements

...Lstiburek of the Building Science Corporation. Better basement insulation techniques: The materials and design you choose are very important to prevent mold and should be appropriate for the environment they are destined to inhabit. Be very careful how and where you install wood and fiberglass insulation in basemen...

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?

...Lstiburek of Building Science Corporation who eloquently explained it like this: ''Putting insulation between metal studs is like eating a sweater to try and stay warm.'' Thermal bridges that will cause significant heat loss are not limited to just studs in a wall. They include discontinuities in the insulation...

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

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...