The leader of the green movement and winner of the 2007 Nobel Peace Prize for Climate Change, Al Gore insulated his personal estate with Air Krete® in October 2007.
How Stuff Works
....Air Krete dries to a rigid foam, trapping its many millions of air bubbles inside. Done right, it also keeps unwanted temperatures out while keeping the climate you want inside. Just ask Al Gore, the Audubon Society and the Biosphere II preserve -- they've all used Air Krete in construction projects. Read More
Fun Quiz About How AirKrete Keeps Your Home Safe by How Stuff Works
Google Answers Many clients, including the Audubon Society realize the outstanding technical and environmental qualities of air krete® . The Audubon Society installed air krete® in their Headquarters in New York City, a building, according to its architect, Randolph Croxton, that was designed to " create a model headquarters...to reduce both environmental and economic costs of buildings." Read More...
SaveGreenly.com ....It is touted by Air Krete as "the worlds greenest insulation". They just may be right.Read More
Cementitious Foam insulation is made from magnesium oxide that is derived from sea water and blown in place with air. No CFCs or HCFCs are used. Because of its inorganic composition, it has very low VOC emissions, is totally inert, and non-combustible. Cementitious foam insulation is available commercially in one product: Air-Krete. There is one installer of this type of insulation in our region. This type of insulation is considered the most benign from an indoor air quality standpoint; it is also more costly.
Cementitious Foam Insulation, including Airkrete, is made from inert materials and considered non-toxic. It's a professionally installed foamed-in (injected) product and a very effective insulator. More often used in commercial buildings.
Harmony Home Construction
Silicate foam or Air Krete is cementious foam insulation made of magnesium oxide extracted from seawater plus calcium and silicate. It is one of the least toxic insulating materials on the market, though still a bit costly. Higher initial costs are off set by higher R-values and tight fitting draft prevention.
Healthy Home Institute Air Krete® is a non-toxic insulation that is easily inserted into open and closed cavities such as walls, roofs, and ceilings. Air Krete is installed as a foam with the consistency of shaving cream, which then hardens into a stable foam. It has a high thermal efficiency, is sound-absorbing and fire-proof. Its basic components are air, water, and cement, making it cost-effective and environmentally safe. It's resistant to mold growth in 95% relative humidity. Air Krete requires professional installation.
The RIC Good Wood Guide NON TIMBER BUILDING MATERIALS
A non-toxic insulating foam called 'Air-Krete', is now marketed in the U.S. as an alternative to fibreglass insulation. Air-Krete is made from tiny magnesium oxide bubbles which encapsulate atmospheric air. Magnesium oxide is a natural mineral used for centuries to make fire bricks. Its higher cost is offset by its superior thermal qualities.
While newer and less well known, Air Krete is a thermally efficient and non-toxic spray insulation that is easily foamed into open or closed cavities in walls, roofs and ceilings. The product's basic raw material components are air, water and cement which, when combined, create a cost-effective, safe and high performance product. The National Audubon Society installed Air Krete in its New York City headquarters as part of an overhaul designed to "green up" that organization's entire operation.
Cementitious foam is a magnesium-based product that is derived from seawater. Because of its consistency, foam is the most effective product for retrofitting into existing walls. Foam will work its way around any obstacle, providing a near-100 percent wall fill (cellulose, for example, may not fill completely around bundles of wires or pipe runs and leave random voids). Unlike bottled foam insulation used to seal small gaps around pipes and wiring, it does not shrink or expand. In new construction, foam can be installed after drywall is hung, but taping and texturing drywall joints should be completed after the foam has completely dried (usually about 48 hours). Cementitious foam is the most costly insulation to retrofit, but is the most benign in regards to indoor air quality; when it is being applied into a wall there is no dust. http://oikos.com/esb/29/insulation.html It sounds like the perfect insulation. With an insulating value of 3.9 per inch, it would exceed R-21 in a 2x6 wall. It completely seals the cavity preventing air leaks. It doesn't shrink. It won't burn or attract pests. It's non-toxic and popular with "hyper-sensitive" people.
Air Krete has gained a following both for environmental and health reasons. It is an inorganic foam produced from magnesium oxide (derived from sea water). It is foamed under pressure with a microscopic cell generator and compressed air; no CFCs or HCFCs are used. Because of its inorganic composition, Air Krete has very low VOC emissions, is totally inert, and non-combustible. It is foamed in place in closed wall or masonry block cavities, or behind mesh in open cavities to form a lightweight and rigid, but very friable, foam.
Air krete is 100% non-toxic, free of CFC's and formaldehyde, free of asbestos and all other carcinogenic fibers. It is odor- free, has a high R-value, has no loss of R-value over time (non-shrink, non-settling), fireproof, with no by-products of combustion.
• air krete® has been endorsed by the National Park
Service and is listed on their database of Environmentally
Sustainable Products .
• Three of the four lecturers of the National Association
of Home Builders Convention in Las Vegas, Nevada, January,
1992 recommended using air krete® for insulation during
the "Healthy House" symposium.
• Solar Today May - June 1993 page 19 " air krete's
winning combination of high R-value, resistance to fire and
vermin, and the ability as a foam to seal all cavities effectively
sold us on the material. "
• Sustainable Design Resource Guide 1995 Edition Published
by AIA Denver Environmental Committee Division 07 - Foamed
in Place Insulation - air krete® synthetics.
• The Healthy House John Bower page 222 " The insulation
made from glass or air krete® are probably better choices
than those of synthetics."In Business May-June 1992 The
National Audubon Society headquarters used air krete® for insulation.
Healthful House Clint Good AIA with Debra Lynn Dadd 17200
Insulation " Avoid fiberglass batts. Recommended : air
krete® . "