Flexible durable fiberglass, in its turn, consists of particles of processing glass of icon quartz sand. For the production of stone fiber, different breeds of natural stone are used: diabase, limestone, basalt, dolomite.
The main advantages of this material: increased durability (service life – more than fifty years), elasticity. So, mineral fiber is not destroyed by insects and, in addition. It, in fact, is not affected by fungi and mold. Minus of the material: mineral fiber does not withstand high loads.
Produced in the form of even slabs or mats.
Density 15-200 kilograms per cubic meter.
Heat transfer: 0.035-0.045 VTM3.
Heat transfer 0.045-0.065 VTM3.
Thermal conductivity – 0.04-0.06 VM*K.
Class of resistance to fire – B1 (such a class of stability have difficult -to -flame materials).
Foam polystyrene
It is made of polymerized styrene with the addition of foaming agents, various stabilizers, fire -retardant additives. Polymerized styrene melts, mixes with the above components. The output is a tape of a given thickness and width.
Advantages of the material: a polymerized styrene of racks to pressure, is not subjected to biological decomposition. Unlike solid polystyrene foam, it absorbs moisture. Cons: exactly the same as that of solid polystyrene foam.
Produced in the form of plates.
Density 25-45 kgm*K.
Class of resistance to fire B1 (hard -flammable materials).
Hard polyurethane foam
It is made of artificial polyurethane (this is a by -product of oil refining) with the addition of foaming agents or fire retardants. Thus, the resulting mass enters the conveyor in the form of a tape. The upper layer consisting of a bituminous canvas or, as an option, thin film, is glued to the tape. Also, the material can be made by pouring the foamed mixture into forms, which immediately after solidification is cut into smooth plates.
Advantages of the material: polymerized stroke styrene to loads. He is not subjected to biological decomposition, mold and fungi. Material disadvantages: When burning, the material emits harmful substances.
Produced in the form of even plates.
The density lies in the range of 25-45 kilograms per meter cubic.
Thermal conductivity is 0.04-0.06 VTM3.
Thermal conductivity 0.04-0.09 W/m*K*.
Class of fire resistance of the material – B1. That is, this material is difficult.