Demolish only top layer of slab

[Zendrix]

Hi!

My question is, in a renovation and to use properly the renovation filter, is it possible to demolish just the flooring of a slab (composite)?

Cheers,

Z

[Barry Kelly]

That is why you model the finish slabs separately.

Then you can have control of just the part you want.

There is an old saying with Archicad - "Model it as it is built".

Works for most situations.

The structural slab is built separate to the floor finishes, so model them separately.

Barry.

[Zendrix]

If the best approach is to model it as it is built, then composite walls or slabs are conceptually useless or against the workflow and should not exist, right?

Cheers,

Z

[Barry Kelly]

There is always the exception to the rule. 😉

Even with walls, if you want to renovate and change the external cladding, you need to model the skins separately.

Not so easy with walls because you need the doors and windows to cut each skin.

So you would replace the whole composite.

Which you can of course do with the slabs as well, but then you might have scheduling difficulties as mentioned.

If we could have doors and windows associate to multiple walls like openings can, that would be perfect.

Barry.

[vistasp]

Not necessarily. For walls, composites that are complete in all respects, can be extremely useful. I have wall composites of different core thicknesses, with combinations of external and internal plaster finishes. Having these as discrete elements is a nightmare because, well, doors and windows.

For floors/slabs, on the other hand, I have always found it better to separate the structural part from the floor finish (with subfloor), because, for example, different rooms are likely to have different finishes, even if they have identical slabs. You will have to work what you are most comfortable with, and go with that system.

The "model it as you would build it" adage is an old one, but I still drill it into students because, as Barry said, it works for most situations.

Edit: Barry already answered this, but it bears repeating, I suppose. 😄

[Zendrix]

Got it.

Makes sense to work slabs as the structural part separately cause of the reaosns you mentioned. Thanks guys.

Cheers,

Z

[Botonis]

When you seperate the skins that means that you have to create a composite for each skin

so you will be able to set if this is a core skin or finish or else. This is when you also want to activate the partial structure display

In my opinion the less the elements are the more control you have on the model.

It is always a choice of workflow.It is not a question of right or wrong.