mark handler
SAWHORSE
Quest to eliminate chemical flame retardants from Californian homes is far from over, experts say
Some argue flame retardant insulation is toxic and unnecessary, but it’s still required by California building codes
http://www.theguardian.com/sustainable-business/2015/may/15/flame-retardants-insulation-furniture-building-code-foam
[img[http://i.guim.co.uk/static/w-620/h--/q-95/sys-images/Guardian/Pix/pictures/2015/5/8/1431122046218/ccd57ff3-1058-41cd-966c-950bb180aafa-620x372.jpeg[/img]
A California regulation effectively eliminated the need for chemical flame retardants in furniture in November 2013. Two years later, though, experts say the quest to eliminate the retardants from the home is far from over.
While flame retardant chemicals have been taken out of furniture, many of the same chemicals are still required in building insulation and other products. Some of these compounds – particularly halogenated and organophosphorous flame retardants, which are commonly used in a variety of consumer and industrial products – have raised a host of health concerns. The US Environmental Protection Agency, among others, has linked them to a variety of health conditions, including endocrine disruption, reproductive toxicity, and cancer.
Spacehus sets a new standard for energy efficient homes
“The change to the furniture standard is huge and we’ll all be healthier as a result,” says Arlene Blum, founder of the Green Science Policy Institute and longtime leader of the charge for Technical Bulletin 117, the regulation that removed the flame retardant requirement for furniture in California. “On the other hand, there are still other uses of concern, particularly building insulation and electronics.
“The same materials that make buildings really energy efficient – polystyrene, polyurethane and polyisocyanurate – are treated with flame retardants that are either known to be harmful or appear to be,” Blum says. What’s more, she adds, the increased focus on energy conservation is leading to an increased use of such chemicals. “As our buildings get more and more energy efficient, we’re using twice as much insulation, so twice as much flame retardant chemicals,” she says.
But what of the fire protection that comes from these chemicals? Blum argues there isn’t any real benefit. “Many walls are designed to be thermal barriers, so they can withstand 15 minutes of flashover fire,” she says. “By that time, the flame retardant really makes no difference.”
Changing the standard
In October 2013, California Governor Jerry Brown signed a bulletin that required the state fire marshal to look into updating the state building code to enable the safe use of insulation that does not contain chemical flame retardants. Blum says efforts are underway to completely eliminate the use of these chemicals in areas where there’s very little fire risk. “Between the foundation and the soil, for example, there’s zero fire risk, but chemical flame retardants used in insulation there could leech into the ground water and soil,” she says.
It’s not clear whether flame retardant chemicals are really unsafe. The question of whether or not they migrate beyond walled-off enclosures to expose building inhabitants hasn’t yet been studied. But those who advocate for eliminating fire retardant chemicals from building insulation are not only concerned about their toxicity in the home, but also about their overall life cycles – including their manufacture and disposal.
According to the European Commission and the US Environmental Protection Agency, insulation is the primary environmental source of hexabromocyclododecane (HBCD), a flame retardant chemical and persistent organic pollutant. The Green Science Policy Institute estimates that 85% of the global supply of HBCD is used on foam plastic insulation.
Some argue flame retardant insulation is toxic and unnecessary, but it’s still required by California building codes
http://www.theguardian.com/sustainable-business/2015/may/15/flame-retardants-insulation-furniture-building-code-foam
[img[http://i.guim.co.uk/static/w-620/h--/q-95/sys-images/Guardian/Pix/pictures/2015/5/8/1431122046218/ccd57ff3-1058-41cd-966c-950bb180aafa-620x372.jpeg[/img]
A California regulation effectively eliminated the need for chemical flame retardants in furniture in November 2013. Two years later, though, experts say the quest to eliminate the retardants from the home is far from over.
While flame retardant chemicals have been taken out of furniture, many of the same chemicals are still required in building insulation and other products. Some of these compounds – particularly halogenated and organophosphorous flame retardants, which are commonly used in a variety of consumer and industrial products – have raised a host of health concerns. The US Environmental Protection Agency, among others, has linked them to a variety of health conditions, including endocrine disruption, reproductive toxicity, and cancer.
Spacehus sets a new standard for energy efficient homes
“The change to the furniture standard is huge and we’ll all be healthier as a result,” says Arlene Blum, founder of the Green Science Policy Institute and longtime leader of the charge for Technical Bulletin 117, the regulation that removed the flame retardant requirement for furniture in California. “On the other hand, there are still other uses of concern, particularly building insulation and electronics.
“The same materials that make buildings really energy efficient – polystyrene, polyurethane and polyisocyanurate – are treated with flame retardants that are either known to be harmful or appear to be,” Blum says. What’s more, she adds, the increased focus on energy conservation is leading to an increased use of such chemicals. “As our buildings get more and more energy efficient, we’re using twice as much insulation, so twice as much flame retardant chemicals,” she says.
But what of the fire protection that comes from these chemicals? Blum argues there isn’t any real benefit. “Many walls are designed to be thermal barriers, so they can withstand 15 minutes of flashover fire,” she says. “By that time, the flame retardant really makes no difference.”
Changing the standard
In October 2013, California Governor Jerry Brown signed a bulletin that required the state fire marshal to look into updating the state building code to enable the safe use of insulation that does not contain chemical flame retardants. Blum says efforts are underway to completely eliminate the use of these chemicals in areas where there’s very little fire risk. “Between the foundation and the soil, for example, there’s zero fire risk, but chemical flame retardants used in insulation there could leech into the ground water and soil,” she says.
It’s not clear whether flame retardant chemicals are really unsafe. The question of whether or not they migrate beyond walled-off enclosures to expose building inhabitants hasn’t yet been studied. But those who advocate for eliminating fire retardant chemicals from building insulation are not only concerned about their toxicity in the home, but also about their overall life cycles – including their manufacture and disposal.
According to the European Commission and the US Environmental Protection Agency, insulation is the primary environmental source of hexabromocyclododecane (HBCD), a flame retardant chemical and persistent organic pollutant. The Green Science Policy Institute estimates that 85% of the global supply of HBCD is used on foam plastic insulation.