A few words for those who know and those who don't know.
The product literally kills if applied CORRECTLY, and I emphasize that. It is quite expensive, but it is worth every penny if applied correctly.
To help most of you who may not know, and to prevent you from being fooled, pay attention to the following before purchasing and applying it.
First step, you need to clean the roof very well. When I say clean well, I mean using a pressure water machine to remove the dirt that has accumulated over the years. Usually, you will also see the cracks that have appeared on the tiles or the old insulation from the years. It is good to seal the cracks with HYPERSEAL EXPERT from ALCHIMICA or "sausages" as they are widely known.
Second step, you need to apply the primer first (Aquadur). It requires 200 grams per square meter. After applying the primer, depending on the weather conditions, if it is winter, it needs more than 7-8 hours, if it is summer, four hours. Then, you apply HYPERDESMO, which requires 1.5kg to 1.8kg per meter, depending on the surface you are dealing with. For example, if the roof is in good condition, use 1.5kg, if it is full of potholes and worn out, use 1.8kg. Apply one coat and after 19 to 24 hours, apply the second coat. If you want, you can also apply the varnish (which, in my opinion, is necessary) (Hyperdesmo ady-e and Hyperdesmo ady-500). And truly, until the building collapses, you won't need to deal with the roof again.
Because many companies use material but only use 1kg per meter to save costs, you need to be careful with the offers you receive and the kilograms they tell you. So, with a simple example, for a 100m roof, you need 150kg and 20kg of primer.
The material is truly the best, it just needs proper application.

Note: Roofs that have asphalt felt or Veral or any type of asphalt coating must be primed with a special primer. This specific primer is the UNIVERSAL PRIMER 2K, which you need to apply quickly because it has an exothermic reaction and can solidify in the bucket.

Water-based primer is not suitable for tar. (Aquadur)

Seeing everyone in my village using Hyperdesmo LV on their roofs, and liking how it looked, I decided to get a kilo to apply it to a certain area for testing before applying it to my own roof.
Well, I didn't apply any primer or varnish on top of the old insulation I had installed about 10 years ago.
I just want to tell you that as soon as you apply the material, you understand how high-quality it is. After a few days, if there is any leftover in the container, it becomes solid and needs to be thrown away, along with the brushes and rollers. Imagine if I applied primer and varnish before. I don't know if it will last as many years as they claim, but it will definitely last more than a decade.
I will come back after a few months when I finish applying it to the entire roof.
The purchase price, however, is quite high.

I would like to add something after seeing the comment from my friend fishergr, who says:
"Whoever wants can also use the varnish (hyperdesmo ady-e)."
Not whoever wants to use varnish, but it is MANDATORY!
If you don't apply varnish, it will start to chalk in a short time. You will notice this by wiping it with a wet or dry cloth, it will leave a white residue.
Without varnish, you are only doing half the job with questionable results and without a specific timeframe of how long it will last.