ᐅ Reinforcement of screed necessary for tile installation

Hello everyone,
I learned about the topic of screed reinforcement during the customization process for our prefabricated house:
(Excerpt from the document we have to/will sign)

As part of our duty to inform, we point out that cement screed must be reinforced to support tile installation. Suitable options are AKS mesh or fiberglass additives; these must be ordered separately. If this additional service is not agreed upon, warranty claims for any possible cracks in the tiled surface are excluded from the outset.

The surcharge for fiberglass reinforcement is 8€/sqm (8€/sq ft).
What do you think about this?

THANK YOU for your feedback.

I paid €1 per square meter (sqm) net for this in separate trade contracts. Typical general contractor rip-off.

That sounds like a completely new general contractor revenue scheme. I can't assess it from a technical perspective, but none of the construction companies we contacted ever requested something like that, let alone charged additional fees.

immermehr schrieb:

that the cement screed must be reinforced to carry tiles.

A lawyer might now ask, "Where does it say that reinforcement MUST be used?" It is actually uncommon – at least for standard thicknesses.

Should the mesh be embedded in the screed, or laid out only before tiling and then just embedded in the tile adhesive?

Just ask naively after moving out which standard the warranty is based on. Nothing will come of it, and then you can effectively reject the exclusion of the warranty.