A roof ladder is an essential tool for working at heights. You should choose models that ensure safety, i.e. they have an anchoring function, which protects against falls. Which model of roof ladder should you choose?
Check out roof ladders at the Onninen wholesaler
How is a roof ladder constructed?
The roof ladder will work well in demanding situations. It is often used by electricians, roofers and chimney sweepers. Thanks to it, you can perform a number of different jobs. It is worth paying attention to the construction. The roof ladder has appropriately profiled rungs that can withstand high loads and are also resistant to damage. It is mounted using a special headband. This makes it stable and reduces the risk of an accident.
The roof ladder is also available in a variant with grooved and semi-circular rungs. Wide side members are used for even greater protection. However, when cleaning windows at height, you can use a ladder with rubber pads that increase grip. The construction of the ladder itself is very simple. You must also remember that the material it is made of is important. Roof ladders can be made of, for example, aluminum or a combination of aluminum and wood. Aluminum is resistant not only to damage, but also to corrosion, and is additionally fireproof. A wooden roof ladder is less durable, but also cheaper. An alternative are leaning ladders, which can even be permanently attached.
How to choose the right height of a roof ladder?
The roof ladder is available in many versions 
height variants. It all depends on the type of work. You can choose ladders with seven or ten rungs, which are suitable for low structures. However, it is also important to remember that roof ladders must be equipped with protective hoops. This applies to the height above floor level, which is 3 meters.
The regulation of the Minister of Infrastructure of April 12, 2002 states that the width of ladders should be at least half a meter, and the spaces between the rungs cannot be greater than 0.3 meters. The distance of the ladder from the wall against which it is placed cannot be less than 0.15 m. You can also choose a leaning ladder with stringers. It is suitable for facade and installation works. For greater comfort and stability, the rungs are grooved, which guarantees a non-slip surface. You need to know that connections must be stable. Roof ladders with up to ten rungs should have a stabilizer. You can also choose foldable roof ladders, e.g. two-piece or four-piece, which can be used for window cleaning.
Yet another type is a stepladder, thanks to which you can achieve an even greater working height of up to almost 11 meters. It can also be used as a double-sided ladder, as well as a leaning or sliding ladder. Ladders should also be selected according to the material. For example, a leaning ladder cannot be leaned on slippery surfaces or potentially tipping elements.
Roof ladders in the Onninen installation wholesaler
At the Onninen installation wholesaler, roof ladders from the manufacturer Krause deserve attention. A good choice may be the Krause aluminum-wooden roof ladder with 8 rungs . It is an adjustable ladder that is multifunctional. It is suitable for various types of work. Due to the fact that it is made of wood and aluminum, its weight is relatively low and it can be easily transported or moved.
The second roof ladder worth considering is the Krause roof ladder, permanently mounted according to DIN 14094-1, single-section with basket, entry height 4.76 m . It is consistent with the provisions of the regulation of the Minister of Infrastructure on the technical conditions to be met by buildings and their location. It is made of strong galvanized steel, which is resistant to corrosion. It can be easily attached to the building wall. Thanks to this, it can be an escape route for employees. It provides constant and safe access to the roof of the building, even for roofing work, but also for inspection or maintenance purposes.
The Krause CORDA 11-rung ladder is extremely practical and useful. It can be used even for home use, but also for light construction, installation and assembly work. Pay attention to the stringers, which are made of extruded aluminum profile. Additionally, the manufacturer has equipped the ladders with anti-slip longitudinal feet that protect the ladder against slipping and thus increase safety.