Building heat-insulating materials based on local foamed vermiculite

Foamed vermiculite is simplest and very effective heat-insulating, noise-absorbing and fire-resistant material which is used in civil construction as fireproof filled warmth-keeping material.

Unique combination of properties make foamed vermiculite the most advisable and cost-effective material for heat insulation of external walls, flooring, floor slabs and ceilings.

The important advantage of this material is high flowability that allows to fill irregular shape hollows. Heat-conductivity coefficient foamed vermiculite is very low, for instance, a 10 cm thick filling layer is equivalent to a brick wall with more than 0.5 m thickness.

Vermiculite excellent absorb excessive moisture and absolutely unamenable to decay. Another important property of that material is that rodents dislike is.

Vermiculite can be used as light filler in heat-insulating products used at temperatures from minus 260 to plus 1100°C.

For heat insulation of living and housekeeping buildings, vertical hollows are filled with foamed vermiculite in 30 – 50 cm layers with subsequent compaction of each layer. It's advisable to insulate flooring and roofing with vermiculite concrete, 1 m3 of which needs 1300 litres of foamed vermiculite, 200 kg of cement 400 and 400 lt of water. Vermiculite slab material PVTN and VerSon is also available, slab thickness 15 to 65 mm.

Rational use of effective heat-resistant heat-insulating materials allows to reduce materials consumption of structures and nonproductive heat and energy costs.