Why “Zero VOC’s” can still shorten your life

“Zero VOC’s” has become a the tipping point between products judged “good” or “bad”. This is misleading. Volatile organic compounds (VOC’s) describes a molecular relationship, not a material. There are VOC’s that are harmful to the environment because they react photochemically and contribute to smog. Additionally there are VOC’s that have no evidence or history of being deleterious to human health.

The Environmental Protection Agency’s (EPA) mandate is about what happens outdoors. Indoor air pollution is not addressed by the EPA (or any other government agency). The following is a list the EPA excludes from being defined as a “harmful” VOC because (quoted directly from their intro to this list) “This includes any such organic compound other than the following, which have been determined to have negligible photochemical reactivity”… in other words, not contributing to smog.

So “Zero VOC, or VOC-free” can include the following:

  • methane
  • ethane
  • methylene chloride (dichloromethane)
  • 1,1,1-trichloroethane (methyl chloroform)
  • 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113)
  • trichlorofluoromethane (CFC-11)
  • dichlorodifluoromethane (CFC-12)
  • chlorodifluoromethane (HCFC-22)
  • trifluoromethane (HFC-23)
  • 1,2-dichloro 1,1,2,2-tetrafluoroethane (CFC-114)
  • chloropentafluoroethane (CFC-115)
  • 1,1,1-trifluoro 2,2-dichloroethane (HCFC-123)
  • 1,1,1,2-tetrafluoroethane (HFC-134a)
  • 1,1-dichloro 1-fluoroethane (HCFC-141b)
  • 1-chloro 1,1-difluoroethane (HCFC-142b)
  • 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124)
  • pentafluoroethane (HFC-125)
  • 1,1,2,2-tetrafluoroethane (HFC-134)
  • 1,1,1-trifluoroethane (HFC-143a)
  • 1,1-difluoroethane (HFC-152a)
  • parachlorobenzotrifluoride (PCBTF)
  • cyclic, branched, or linear completely methylated siloxanes
  • acetone
  • perchloroethylene (tetrachloroethylene)
  • 3,3-dichloro-1,1,1,2,2-pentafluoropropane (HCFC-225ca)
  • 1,3-dichloro-1,1,2,2,3-pentafluoropropane (HCFC-225cb)
  • 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC 43-10mee)
  • difluoromethane (HFC-32)
  • ethylfluoride (HFC-161)
  • 1,1,1,3,3,3-hexafluoropropane (HFC-236fa)
  • 1,1,2,2,3-pentafluoropropane (HFC-245ca)
  • 1,1,2,3,3-pentafluoropropane (HFC-245ea)
  • 1,1,1,2,3-pentafluoropropane (HFC-245eb)
  • 1,1,1,3,3-pentafluoropropane (HFC-245fa)
  • 1,1,1,2,3,3-hexafluoropropane (HFC-236ea)
  • 1,1,1,3,3-pentafluorobutane (HFC-365mfc)
  • chlorofluoromethane (HCFC-31)
  • 1-chloro-1-fluoroethane (HCFC-151a)
  • 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a)
  • 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy-butane (C4F9OCH3 or HFE-7100)
  • 2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)2CFCF2OCH3)
  • 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane (C4F9OC2H5 or HFE-7200)
  • 2-(ethoxydifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)2CFCF2OC2H5)
  • methyl acetate
  • 1,1,1,2,2,3,3-heptafluoro-3-methoxy-propane (n-C3F7OCH3 or HFE-7000)
  • 3-ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-dodecafluoro-2-(trifluoromethyl) hexane (HFE-7500)
  • 1,1,1,2,3,3,3-heptafluoropropane (HFC 227ea)
  • methyl formate (HCOOCH3)
  • 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-trifluoromethyl-pentane (HFE-7300)
  • dimethyl carbonate
  • propylene carbonate

and perfluorocarbon compounds which fall into these classes:

  1. cyclic, branched, or linear, completely fluorinated alkanes,
  2. cyclic, branched, or linear, completely fluorinated ethers with no unsaturations,
  3. cyclic, branched, or linear, completely fluorinated tertiary amines with no unsaturations, and
  4. sulfur containing perfluorocarbons with no unsaturations and with sulfur bonds only to carbon and fluorine.

General wood flooring installation instructions

Job site conditions

Outside

Check the jobsite for conditions that will result in excess moisture or high humidity.
Surface drainage should be away from the house. The slope should be minimum 6″ in 10′. Gutters, drains and downspouts should be unclogged and functional, draining water away from the house. Eave overhangs should be sufficient to prevent rain from flooding the foundation.

If there is a crawlspace, it must be cross-ventilated with a total ventilating area exceeding 1 1/2% of the first floor area, with no dead air spaces. For example, a 2,000 sq. ft. crawl space must have 30 sq. ft. of year-round open venting area.

If the ground under the house feels damp, or is giving off excess moisture, lay a 6mil. polyfilm vapor barrier on the ground in the crawlspace below the installation area.
Remember to take into account seasonal changes in relative humidity which might affect jobsite suitability. (more…)

Wood flooring care & maintenance

Wood floors are beautiful, unique, and with the proper care and common sense will last for as long as the building is standing. Most wood flooring problems occur due to abrasive material scratching the finish, excessive water or moisture exposure, or subjecting the wood to an extremely dry environment. The following suggestions will help take the guesswork out of proper maintenance. (more…)

Wood hardness

Different woods have different degrees of hardness and density which will affect how they look over time. Eastern White Pine, the softest wood used for flooring, has in many cases withstood over 200 years of use and abuse. You’ll never “walk through” a wood floor.

Hardness and response to moisture are individual to each species, and these properties are important considerations when choosing a wood floor.

The hardness of wood is measured scientifically by the “Janka” test. This test measures the pressure it takes to sink a .444 inch steel ball one half its diameter into the surface of the wood. A higher number denotes a harder wood. Woods that are naturally harder than others will show less dents and evidence of traffic, but this relative standard is mostly for cosmetic reasons as all wood floors will last hundreds of years before they are worn through.

Aging gracefully: wood and sunlight.

All wood exposed to sunlight changes color over time. In furniture, this acquired color is called “patina” and is desirable. Anything organic exposed to the sun changes color, including you and me. (more…)