Green Building Community
Is Mold in Modern Buildings a Sign Of Energy Loss?
Posted by: Chelsea W. // Student
Why does mold grows in new buildings? In an article found on a Australian building site, this question is explored. The main topic of the article is the accidental creation of "thermal bridges", breaks in insulation or wall that lets in air and moisture inside the building making a perfect climate for mold to grow. This is a huge design flaw that could not only cost you money from wasted energy, but also could pose health risks from your body inhaling mold.
Check it out here: https://sourceable.net/why-do-modern-australian-buildings-have-mould-could-it-be-a-sign-of-energy-loss/#
Comment your thoughts, and suggestions for solutions below!
StyroHome // Super Insulated, Passive House, Net Zero
Mold like Wood Fibers and is the main ingredient of modern home construction. House in N. America have short lives, around 32-34 years, mainly because of the stability of Wood and it tendency toward Rot and Mold. Better methods of construction exist but cost more except for one.
Matt Hoots // SawHorse Design + Build
Mold is not always a sign of energy loss. It is usually the result of poor moisture management in the built environment. There are cases where the breaks in the thermal envelope will cause condensation due to the lower dew point. In residential houses it is because the moisture is not properly maintained or there are leaks in the building envelop bringing moisture in from the outside it the relative humidity is greater.
I think an article needs to be written on humidity management for Rate It Green. There are several factors:
1. If you can control the transfer of moisture through the building envelope with proper control layers that is a good start.
2. Proper ventilation and humidity control equipment will make for a healthier environment for the occupants of the space.
Here is an article on Rate It Green discussing ventilation.
https://www.rateitgreen.com/green-building-articles/demystifying-ventilation-and-energy-recovery-ventilators-ervs/146
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