A roof ladder is an essential tool for work performed at heights. Here, you should choose models that provide safety, so they have an anchoring function, which protects against falling. Which roof ladder model should you choose?
Check out the roof ladders at the Onninen wholesaler
How is a roof ladder constructed?
A roof ladder will prove useful in demanding situations. It is often used by electricians, roofers and chimney sweeps. It can be used to perform a number of different jobs. It is worth paying attention to its construction. A roof ladder has suitably profiled rungs that can withstand a large load and are also resistant to damage. It is mounted using a special bracket. This makes it stable and reduces the risk of accidents.
Roof ladders are also available in versions with grooved and semicircular rungs. For even greater protection, wide stringers are used. However, when working at heights, you can use a ladder with rubber pads that increase grip. The ladder itself is very simple to build. It is also important to 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 also fireproof. A wooden roof ladder is less durable, but also cheaper. An alternative is leaning ladders, which can even be permanently attached.
How to choose the right height of a roof ladder?
Roof ladder is available in many 
height options. It all depends on the type of work. You can choose ladders made of seven or ten rungs, which will work well in the case of low structures. However, you should also remember that roof ladders must be equipped with protective hoops. This applies to the height above the floor level, which is 3 meters.
In the regulation of the Minister of Infrastructure of 12 April 2002, we can read that the width of ladders should be at least half a metre, while the spacing between the rungs cannot be greater than 0.3 metres. 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 will work well for facade work, but also for installation work. For greater comfort, but also stability, the rungs are grooved, which guarantees a non-slip surface. You need to know that the connections must be stable. Roof ladders up to ten rungs should have a stabilizer. You can also choose folding roof ladders, e.g. two-part or four-part, which can be used for cleaning windows.
Another type is the extension ladder, which allows for an even greater working height of up to almost 11 meters. It can also function as a double-sided ladder, as well as an extension ladder or extension ladder. Ladders should also be selected based on their material. For example, extension ladders cannot be leaned against slippery surfaces or potentially unstable elements.
Roof ladders at the Onninen installation wholesaler
In the Onninen installation wholesaler, roof ladders from the Krause manufacturer are worthy of attention. A good choice may be the Krause aluminum-wooden 8-rung roof ladder . This is a multifunctional adjustable ladder. It will work well for various jobs. 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 also the Krause roof ladder permanently mounted according to DIN 14094-1 single-run with a basket, entry height 4.76 m . It complies with the provisions of the regulation of the Minister of Infrastructure on the technical conditions that buildings and their location should meet. It is made of strong galvanized steel, which is resistant to corrosion. It can be easily attached to the wall of the building. Thanks to this, it can be an evacuation route for employees. It provides constant and safe access to the roof of the building, even to perform roofing work, but also for inspection or maintenance purposes.
The Krause CORDA 11-rung leaning ladder is extremely practical and useful. It will prove useful even for home use, but also during light construction and installation or assembly work. Pay attention to the stringers, which are made of extruded aluminum profile. Additionally, the manufacturer has equipped the ladders with anti-slip stringer feet, which protect the ladder from slipping, and thus increase safety.