When buying materials for construction and repair, people are usually distracted by the beautiful appearance and low cost, forgetting about safety. Modern building materials, if elementary conditions are not observed, negatively affect the human body. The buyer does not suspect what danger they may be.
During construction, mineral wool is used for insulation and sound insulation. This material decomposes over time, releasing toxic compounds such as formaldehyde and phenol. In addition, it breaks up into harmful microparticles, which the person then inhales. Work with such material in a respirator, protective suit and gloves. It is recommended to place only between layers of other materials in order to exclude getting into the room.
However, even with such safety measures, an indispensable condition remains: the walls and ceiling insulated with such cotton wool cannot be drilled, otherwise harmful particles and toxic substances will gain access to the living space.
The composition of dry mixes and putties, pastes and adhesives should not be harmful substances. They are very easy and most importantly profitable to fake. The number of fake mixtures on sale today exceeds 60%. Without chemical expertise, it is impossible to identify toxic substances in them.
In falsifications, not only untreated chalk, many harmful components and sometimes substances with an increased radioactive background are found.
To reduce the risk of poisoning, purchase branded products from a trusted supplier. Use mixes in heavy clothing, rubber gloves and respirators.
Two varieties of this substance are widely used today in construction: extruded and extruded foams. Both are used as a heater.
Finishing panels for walls and ceilings are also made from polystyrene foam. When heated above room temperature, expanded polystyrene releases toxins - styrene, formaldehyde and phenol. It is recommended to insulate walls with such material exclusively from the outside. And putty and plaster over.
Side effects of the material - high fire hazard. When burning - increased toxicity. The material does not allow moisture to pass at all, in case of improper installation, it will retain water and overgrow with fungus.
Drywall is very popular in construction, as it is easy and quick to align walls, floor or ceiling in the room. It is also used for the construction of partitions, leveling slopes.
Material from well-known manufacturers is created on refined gypsum, in compliance with the technology and is practically harmless. Quality is confirmed by documents.
By purchasing cheap material, or trusting the choice of an unclean foreman, you risk your health. The composition of cheap materials can contain a variety of harmful impurities, and the sheets themselves usually do not differ in strength and durability.
Stretch ceilings, siding, pipes, decoration elements for rooms (skirting boards, cable ducts, cornices, accessories for sockets, etc.) are made from PVC (polyvinyl chloride).
Plastic windows and window sills for them contain PVC in their composition. High-quality products are not dangerous in themselves if the manufacturer complies with all the technologies and has product certificates. However, windows and other items bought at a cheap price at a handicraft industry contain carcinogens and toxins. Which stand out even at low temperatures.
The OSB of the plates includes wood shavings glued with resins under the influence of high temperatures and pressure. Improves the quality of the plates with wax. And boric acid additives increase its protective properties.
This simple and convenient material is used in the construction of various partitions or ceilings. OSB plate is made of three to four layers. In the outer orientation of the shavings is longitudinal, in the internal - transverse. Due to this orientation of the shavings, the board is superior in strength to its analogues - chipboard and MDF board.
For bonding the inner and outer layers, different resins are used. Urea-formaldehyde resin above, urea-formaldehyde inside. Instead of urea, phenol-formaldehyde resin can be used.
The resin content in OSB is up to 14% by weight of the sheet. All of these resins are toxic. They secrete methanol, phenol and formaldehyde indoors at room temperature.
The concentration of these substances in the air of an unventilated room quickly exceeds permissible norms. Therefore, for interior decoration OSB plate is not recommended.