The
insulation material is frost-proof, non-combustible, does not rot, is practically diffusion-tight, rot-proof, resistant to vermin and can withstand high pressure loads. Foam glass consists of closed and gas-impermeable cells. The insulating effect is caused by the CO2 trapped in the cells ( λ = 0.038–0.145 W/mK).
Forms of delivery Foam
glass is supplied as gravel in sacks or sheets.
Foam
glass ballast is used in house construction primarily as load-bearing thermal insulation under foundations and basement slabs. Foam glass ballast takes over the drainage function of the rolling and at the same time acts as external thermal insulation against the ground and therefore replaces conventional foundation substructures with gravel and pressure-resistant XPS panels. The prerequisite for installation in pressurized water is a soil that is well permeable or, in the case of cohesive soil, a functioning drainage, as the thermal insulation properties decrease with pressurized water. The installation of foam glass gravel is particularly popular for the insulation of floors in contact with the ground in the renovation of old houses.
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red= Areas of application, grey= not possible
Foam glass is largely made from recycled glass and other natural raw materials (sand, dolomite, lime). It is an inorganic insulating material that is very pressure-resistant, non-flammable and vapour-tight, so that no vapour barrier is necessary under the insulation level. Foam glass is very robust, e.g. against pests or acids, but still remains easy to process.
Source: bauwion
