The flooring guys are not responsible! They had no idea that what they did was wrong.
It is really on Alice to get things far enough away from them.
I realize that you think that they are responsible because it was their glue pot that caused the damage. And you think it is as simple as 1, 2, 3. But in court you would lose. Maybe they will replace it but don't be surprised if they decline.
Alice knew that an orchid + heat don't mix. They have no idea of what an orchid is let alone heat would hurt it.