Smudge texture after denoise

Hello, I have 2 months using Blender and I´m loving it.
But I have a problem that I want to solve.
I have a interior architectural scene, and the denoise feature just smudge the concrete texture ( or any very glossy roughness). But if I don´t use the denoise, the noise is too much for a final render.
3000 samples
Cheers
Alex



http://aendom.com/aendom/3d/setting2.pnghttp://aendom.com/aendom/3d/setting3.png