Aluminium extension ladders are extremely durable, since they are made from high tensile metal, are able to withstand day-to-day wear and tear very well. They will also not dent, chip or crack when severe impacted.
You will not need a protective finish and will not dry out or weather with age or sunlight exposure.
The very worst that can happen is that it will oxidise, which can easily be polished off.
Warning – Aluminium extension ladders conduct electricity and heat
Not only do aluminium extension ladders conduct electricity, but they also conduct heat very rapidly, which is a major drawback.
If your aluminium extension ladder has been subjected to extreme heat, such as a fire, it may no longer have the same load capacity.
Although aluminium extension ladders are heat treated, they will become annealed in this circumstance.
If a fire affects the bottom of your aluminium extension ladder, it probably won’t even support one person.
Have a look at the aluminium extension ladders available at Browns.