2. Ecowool

Ecowool is a natural material that is produced from cellulose fibre by recycling wastepaper and adding antipyrines and antiseptics. No harmful or health-threatening additives are used during its production. One of the advantages is that the material fills building structures well, especially hard-to-reach places. Two types of installation are used – dry (horizontal or vertical) and wet. Wet installation of ecowool is used in open wall constructions, while dry installation is used in horizontal (walls, etc.) and inclined (attics, roofs, etc.) constructions.

Advantages	Disadvantages
natural and ecologically clean material, good thermal conductivity (λ = 0.039–0.041W/mK), no residues during laying, anti-allergic material, recyclable, fireproof, good sound insulation.	more expensive material, during the laying process, mechanical processing is required, the installation process is more complicated, specialist help is required, must dry for two weeks after wet application.