Tuesday, September 6, 2016

Materials research...

back to doing some research on materials as we fix up our home.


amazing paper on indoor wood product emissions and indoor emissions:
https://www.researchgate.net/publication/223707259_Emissions_of_total_volatile_organic_compounds_from_pressed_wood_products_in_an_environmental_chamber

some main points:

  • mean indoor TVOC concentrations
    • established residence: 1130 ug/m3
    • new building: 4000 ug/m3
    • refurbished building: 19565 ug/m3 after 1520 hrs and 11 ug/m3 after 2250 hrs
I find it very interesting, that right after refurbishment the TVOCs are the worst, assuming between the upheaval of old materials / temp exposures during construction e.t.c. and new materials it wrecks havoc, but then surprisingly settles to levels lower than original.


and TVOCs from wood products are in general 18-408 ug/m3, which is much less than from other materials used.

very interesting to see particle board maximum emissions actually spike at 21hrs in the chamber rather than start at a maximum and decline. i wonder why? settling of some time to the environmental conditions (heat / humidity / tension)?


this is such a great article:
http://www.greenbuildingsupply.com/Learning-Center/Paints-Coatings-LC/IAQ-and-Your-Health-A-Deeper-Look-at-VOCs-and-Formaldehyde

good summary:
http://www.greenhomeguide.com/askapro/question/is-recycled-rubber-flooring-a-green-and-healthy-choice-we-re-considering-it-for-a-basement-living-space

Excellent paper on impact of air quality on people: 
http://www.inive.org/medias/ECA/ECA_Report19.pdf

CDPH / EHLB Standard Certification process:
https://www.scsglobalservices.com/files/standards/CDPH_EHLB_StandardMethod_V1_1_2010.pdf

Plywood TVOCs:
http://www.swst.org/meetings/AM12/pdfs/papers/PS-25.pdf

Cork
https://www.deepdyve.com/lp/wiley/voc-emissions-from-cork-products-for-indoor-use-3TdCtvxCNS

Sound-Proofing:
https://www.rubberflooringinc.com/underlayment/cork-underlayment.html


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