No , it ’s not the Hellenic home airway . It ’s a cement - establish insulation intersection , patented in 1984 . The elementary ingredient of Air Krete is magnesium oxide ( MgO ) , which is derived from seawater . mind the simplicity of how this sound , though . First , seawater reacts with quarried limestone to make Milk River of magnesia – Mg(OH)2 – which is then split into MgO andH2Othrough electrolysis . The process is energy intensive , but only about 30 percent as much so as make the components of traditional Portland cementum , which emits just over a ton of CO2 per ton of cementum .
Once the MgO is isolated , Air Krete is make with the add-on of a tiny bit of ceramic talc , water and a foaming agent .
Once it ’s ready for use , Air Krete looks much like shaving cream . In fact , it ’s a cementum froth that traps thousands of tiny air bubbles . If air alone were left inside your walls , it would move , flux and shift heat through convection . But trapping this atmosphere in one thousand thousand of individual Sir William Chambers forces heat to transfer through conduction – a much slower process . This is the same function of fiberglassinsulationbut without the carcinogenic microfibers , without the formaldehyde used in manufacture and with more insulating ability per inch of thickness . Air Krete also pop the question higher-ranking fireproofing , pest - proofing and racket - proofing .
Air Krete is spray into walls , much like many modernistic foaming insularity . One main remainder is that when you ’re retrofit a house with insularity , Air Krete can be sprayed into wall from the exterior – rather than the interior – of the star sign , abbreviate hurt to finished inside infinite . However , installation does require grooming specific to the product . For example , Air Krete requires a lattice - like chicken telegram to patronage it while drying , and if Air Krete is installed through subsist sign - wrap , slit must be cut in the wrap to aid dry out .
Once it ’s decently installed and dry , Air Krete should n’t expand or shrivel , unlike other spray - in - place insulant , which may require room for expansion or the addition of another round of insulant once the first app settles .
Air Krete dry out to a unbending froth , trapping its many millions of breeze bubbles deep down . Done right , it also maintain undesirable temperatures out while keep on the climate you want inside . Just involve Al Gore , the Audubon Society and the Biosphere II preserve – they ’ve all used Air Krete in construction labor .
For more information on greenish building products , check out out the links on the next Sir Frederick Handley Page .
