Understand Scaffold Classes: Part II

Fixed scaffolding classes: an abstract notion for many but essential to use the equipment adapted to its needs and guarantee the safety of the operators and the site.

A fixed scaffold class is a weight story! There are 6 in the normative texts of fixed scaffolds with, for each, a maximum authorized service load. Depending on the nature of the work to be carried out, the user company will choose a scaffolding of a higher or lower class. Here are some keys to see more clearly

OF THE IMPORTANCE OF SCAFFOLD CLASSES

A fixed scaffold is not chosen and can not be used without taking into account its load class. This depends on the structure and the safety of the operators.

The texts of standard NF EN 12811 define the scaffolding classes and the corresponding service loads.

It is the nature of the work to be carried out that will guide the user company in choosing the appropriate class for its scaffolding. It determines whether or not to store tools and materials on work surfaces and the volume and type of storage. The higher the class, the greater the permitted load per m2. For example, a stonecutter will select a class 6 fixed scaffold because its activity involves storing and handling large stone blocks on the floors.

THE 6 CLASSES OF SCAFFOLDS AND THEIR SERVICE CHARGES

In order to meet the different operating conditions of fixed scaffolds, the European standard NF EN 12811 specifies 6 classes and the corresponding loads.

〉 CLASS 1 - Permissible load 75 kg per m2: inspection tasks and work done with light tools and without storage of equipment.

〉 CLASS 2 - Permissible load 150 kg per m2: inspections and painting, repairs, waterproofing, which do not involve the storage of equipment, except those which will be immediately used as paint, plaster.

〉 CLASS 3-Allowable load 200 kg per m2: inspections and operations which do not involve the storage of equipment, except those which will be immediately used as paint, plaster.

〉 CLASS 4- Permissible load 300 kg per m2: brickwork, concreting, plastering. The facade scaffold F3000 of DUARIB falls into this category. Fixed scaffolding F3000 DUARIB

〉 CLASS 5- Permissible load 450 kg per m2: masonry work

〉 CLASS 6- Permissible load 600 kg per m2: heavy masonry work with heavy storage of materials.

There is, however, an essential rule to be observed for the distribution of these loads on the work surfaces. They must be evenly distributed over 1.5 levels of loaded floors:

📏1 level charged at 100%.

The second, directly lower or higher, is 50%.

📏In addition, note that in the case where no normative load can meet the specifications of the work, a calculation note must be carried out.

Source: duarib

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Scaffolding, the practical guide : Types, Materials, Standards

Need to intervene in height: a gutter cleaning, repainting ceiling or exterior wall, trimming the hedge? The scaffold is the ideal solution. Must still choose the right scaffolding model ...
Types of scaffolding: mobile or fixed?
Scaffolding is a temporary structure made of tubular, usually metal, supporting floors and allowing access to working areas at height. There are two main types of scaffolding: mobile and fixed.
Mobile scaffolding: ideal for small sites
The mobile scaffolding is often used by individuals for the yards of a few days. It can also be used by some artisans like painters.
There are different kinds of mobile scaffolds:
mobile scaffold  : easy, it can be moved easily from one place to another,
folding scaffolding  : very little space for storage, it is also easy to assemble,
scaffolding staircase  : suitable for level differences, this type of scaffold is ideal for stairs, it can be folding or rolling.

Fixed scaffolding: for large construction sites
The fixed scaffold is a facility that aims to stay in one place for several weeks. We find this type of scaffolding on the facades of large city buildings. There are three types of scaffolding like this: the fixed scaffolding is the classic version of the fixed scaffolding, it is mainly for professional use and up to 12 meters high. The suspended scaffold , steering wheel or console, is intended for specific projects where a fixed scaffold may not be installed. The custom scaffolding , made ​​for special projects must respect the regulations in force.
Scaffolding materials: a wide selection
Scaffolds exist in several materials, each with the qualities and drawbacks: the steel scaffold is the most robust. The aluminum scaffold is the lightest and most fre. The scaffold fiber glass is insulating and aesthetic. The bamboo scaffolding is the greenest.
Features of scaffolding: standards and dimensions
Scaffolding must have certain characteristics that make it safe. it must meet certain standards to certify the quality of the material used. All scaffolding element has a standard specific to it and to which it can attach. He must have dimensions suitable for the construction project, the proposed maximum load, the physical setting, etc.

Safety on scaffolding: regulation
The use of scaffolding is essential in the construction sector. Despite regulations to prevent risks and ensure the safety of responders, scaffolding work are still the major cause of serious accidents on construction sites including the scaffold fall .
Some safety precautions have been put in place for the protection of the scaffolding , including side protection (guardrails, solid walls, wood or metal) and devices to stop the free fall of a body on less than one meter (safety harnesses and fall protection net, etc.).
Mounting the scaffold: Tea, console, disassembly ...
For better protection of the user, certain precautions and instructions must be observed when mounting and dismantling the scaffolding and its components: components of the scaffolding (tubes and feet), scaffold platform , scaffolding bracket .
Other ways to work at heights: ladder, ladder
Several other facilities outside scaffolding, allow you to work at heights:
the scale , which provides access to a height of up to 12 m: right scale , double ladder , extension ladder , telescopic ladder or articulated ladder ,
the stool , household item allowing access at lower heights to 3 m,
the individual platform , the ladder in industrial design,
the lifter plate , the hoists , for raising, not the person, but the materials.
Scaffolding Buying Guide
Buy a scaffold is not so simple, because you have to consider many criteria: working height, specific use of scaffolding, frequency of use, requirements, environmental constraints. Besides buying a scaffold, others more economic solutions exist: buy a used scaffolding or scaffolding rental .

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