Revit Floors (open letter to developers)

[eldad]

I have a major problem with floors in Revit since version 5.

In short, I can’t trust Revit!

In long, my floor keeps on moving, it seems that when a wall is attached to a floor, moving this wall will change the floor sketch, this is a fundamental need, Floors must not move! I don’t care if walls attached or not, nothing should affect the floors, simple as that!

I just had enough of this ludicrous issue, forever and ever I have to amend my floors sketch, you guys need to fix it, it looks like Revit is still stuck on the 200m2 average home plan, as soon as you draw a floor that is big and not square, something goes wrong.

I don’t want to know about, splitting the floor into smaller chunks, or creating an external floor family and importing it in (that what I have to resort to) we shouldn’t need to find a workaround for a simple fundamental function as a floor.

So please Revit developers, for the 10th time, do something about it.

thanks

[sonya]

i have found that the only (mostly) reliable way of big floors is to draw them with sketch lines, and never, never, ever use the pick walls tool to create the floor - to limit the association the floor makes with the wall

[eldad]

I know mate, that's the only way I draw, but this does not change a thing.

my floor plate is 4500m2 and Revit can't handle it.

[truevis]

i have found that the only (mostly) reliable way of big floors is to draw them with sketch lines, and never, never, ever use the pick walls tool to create the floor - to limit the association the floor makes with the wall

Even without picking walls for the sketch, I've found there to be an unpleasant relationship sometimes that can mess the floors up if I manipulate walls.

Anybody got tips to avoid this?

[rjcrowther]

Whilst I have never drawn a 4500 sq.m floor I also have not been able to get the pick walls option to do the right thing. I now exclusively sketch lines even though I have read several recommendations to use the pick walls tool. It seems to be worse when the wall type is cavity brick rather than a single leaf .

My solution to floors has been to model them after the walls are set. Although the walls usually change between design stages it is the best I have been able to do.

I also have a problem where the roof just bombs out on occasion when the walls drastically change (residential) causing the removal or inclusion of a hip or valley.

It is just something I have excepted.

Rob

[eldad]

It seems the bond between the floors and the walls is too strong, they are 2 separate elements, one should not affect the other.

the point is, that it does not matter how we draw the floors, they should work. this issue has been going on for a few years now...

[Tobie]

Just to check the process. I drew a 4500m² floor. Added some walls inside the floor area. Moved them to over the floor edge. Then moved all the walls in different directions and the floor stayed the same. I drew the floor with lines and not with picking walls. Could you post your file with only the floor and walls please?
Cheers,

[eldad]

Just to check the process. I drew a 4500m² floor. Added some walls inside the floor area. Moved them to over the floor edge. Then moved all the walls in different directions and the floor stayed the same. I drew the floor with lines and not with picking walls. Could you post your file with only the floor and walls please?
Cheers,

tobie,
The problem arises when your floor is a little complicated (i.e. not a square)

The problem is not with the file, this is not the first project this is happening. My file is about 90meg at the moment, I appreciate your willingness to check the file, but believe me when I say it’s a Revit problem…

J

have a good long weekend...

[SkiSouth]

Eldad,

Have you used reference planes to define the edge of the floor? It is an extra step, but when I first started Revit (years ago), the BIG rule was ALWAYS use reference planes. So when something must stay put I was taught (in this forum) to set a reference plane, lock (pin) it, then lock the associated object to that plane. It doesn't mean that the object can't move, but you must unpin the reference plane, then move the plane to move the object.

[aaronrumple]

The associtivity of floors/ceilings has saved me big time on changes over my years using revit. I think its a great feature. Pin/Move with Disjoin/Cut and Paste/Sketch constraints are all techniques that can be used to fix an object