How to leave dirt behind a threshold? Part 1
of Vida of antisplash devices
Once in library of academy of Sciences hung on a toilet wall the plate: “ Purely not because clean but because do not litter “. Someone from the academic jokers added the plate with the signature: “ Immanuel Kant “. He completely agrees with this great saying. It is much easier to stop dirt on a house threshold, than to struggle with the enemy in fortress.
As showed experiments, in dry weather the average person brings to the house on the footwear all a dirt gram floor a day. It would seem that this quantity is insignificant, but this trifle quite is enough that abrasive particles of dirt tore off a varnish from a parquet and gave to the room a slovenly look. In rainy weather or in snowfall the amount of the dirt brought in the room udesyateryatsya, respectively, also consequences are multiplied.
Without exaggeration it is possible to tell that battle with dirt on a threshold of the dwelling continues not one millennium, both significant progress is during this time achieved and certain traditions are developed. According to these traditions, and also thanks to recommendations of competent experts, the system of mud-protection can be divided into 2 - 3 levels conditionally:
1 - y level (before an entrance, on a porch) - modular coarse coverings. They are intended for detention of large fractions of dirt and hold 20 - 55% it.
2 - y the level (the covered porch, the platform) - modular close-meshed coverings. Their task - to clear footwear of average fractions of dirt and partially of moisture. They detain 60 - 90% of pollution.
3 - y the level (the hall, a lobby, a corridor) - nap or loopback coverings. They clean off the remains sand, dust and moisture. Correctly operated coverings allow to hold nearly 100% of the dirt getting into the room in a mud-protection zone.
Of course, this division is conditional, there is no clear boundary, and some devices relating to the second level apply before a threshold, others - indoors.
1 - y level
To antisplash devices of the first level is carried by coverings which establish or stack before an entrance to the building. It is expedient to establish them in places with an intensive flow of visitors. For premises of the device of the first level, such as “ Wave “ “ Nova “ “ " Flax; “ City “ “ Respect “ and similar apply seldom therefore in this article we will be limited to short data about them.
It is strong rigid designs from 9 to 25 mm high. Such coverings often call lattices. They are intended for cleaning of footwear of the most rough lumps of dirt. As a rule, they have cellular structure with large empty cells in the form of squares, triangles, rhombuses, hexagons, or more intricate, in the form of fish scales.
Sharp edges of cells scrape off dirt and stones from a sole, then dirt fails in openings of cells thanks to what the covering remains pure and continues to carry out the functions still long enough. The collected dirt is cleaned, having raised a lattice.
Modern door lattices most often represent modular designs, that is, made like the meccano of the separate rather small modules fastened among themselves with special locks.
The modular principle of assembly allows to collect coverings of any sizes and various coloring. Modules serve not less than 3 years. At damage of separate modules it is not necessary to change all covering, it is possible to replace the module easily.
About mud-protection of other levels - in the following article.