Green Things To Know
May 13, 2010 3 Comments
As technology advances in the world of Green Building, many products that used to be cost prohibitive have suddenly become affordable alternatives. Low and zero VOC, (volatile organic compound), paints are now a standard feature in my projects as the quality and affordability are par with conventional paints and finishes.
A little about Volatile Organic Compounds.
VOC’s are commonly used in the manufacturing of construction products and can off gas for long after they are applied in the home. Formaldehyde is just one example of a commonly used VOC and can be found in adhesives made to manufacture carpets and underlayment, vinyl flooring, cabinets, trim, and some engineered lumber products.
The 2 most common forms of formaldehyde are Urea formaldehyde which is the less preferable in regards to indoor air quality. And Phenol Formaldehyde which is roughly 4-10% as volatile as Urea Formaldehyde and is most often found in exterior products.
Formaldehyde is a potent mucous membrane irritant and is listed as a known human carcinogen.
Did You Know That
Installing flooring materials like hardwood and tile can slightly reduce energy consumption by absorbing the radiant heat from the sun and helping to heat the home. The same can be said about countertops made of stone or tile especially if they have exposure to south facing windows. “Eat as low on the energy food chain as possible” by using what energy is available like sun, wind, and temperature. This minimizes the need for concentrated energy like gas, electricity and oil.
Keep checking back as I will continue to talk about the principles and practices of Green Building and feel free to add your comments below that might benefit interested readers.
IAQ is a very complex balance as you have pointed out, but we have much more to worry about than formaldehyde. Every time you cook, a fine layer of toxins land on surfaces far away from the kitchen. Toxins include hormones, nitrates, pesticides and much more. By simply turning on the venthood prior to food prep much of this can be eliminated. Boiling water with fresh vegetables can be some of the most toxic things to land in your living environment. Sadly, frying bacon is the absolute worst offender and travels further than anything else. Who doesn’t love bacon on stuff?
Those venthoods were put there for a reason…Just use it!
Urea Formaldehyde resin is also found in fiberglass wall insulation. As the formaldehyde off gasses it goes right through the drywall into the interior room air that we as occupants breath.
Here is an journal article about elevated fromaldehyde in ‘green’ homes:
http://www.aihasynergist-digital.org/aihasynergist/201002?pg=32#pg32
Formaldehyde in homes has become a serious issue. Check out this study published by The California Air Resources Board’s report published December 15, 2009 that states:
“Nearly all homes (98%) had formaldehyde concentrations that exceeded guidelines for cancer and chronic irritation…”
Summary: http://www.arb.ca.gov/research/apr/past/04-310exec_sum.pdf
Report: http://www.arb.ca.gov/research/apr/past/04-310.pdf
Researcher’s PowerPoint presentation: http://iee-sf.com/resources/pdf/ResidentialVentilation.pdf
Thanks for the contribution Rich. Good stuff!