8 replies to this topic

[Dennis Asher]

I am currently working on a project that will have 1½" lightweight concrete over the subfloor.  I added the extra sill plate to my wall definition but am unsure what the best way is to show the lightweight concrete.  Just wondering how others might be handling this.  Thanks!

[Keith Almond]

I'd probably show it as a 1½" concrete slab positioned above the standard subfloor. So draw the subfloor then add a slab and adjust the height and offset to suit.

 

I haven't tried it, so it may not work perfectly. Normally the concrete fits between walls, so it shouldn't lift the walls up.

[Mark Petri]

It is a bit of a pain. I've tried different things, and have yet to find something that works the way I want it to. A slab will sometimes jump around and may not show correctly if using SoftList. I set my doors to sit 1.5" off the subfloor. And, I set my finish floors (if drawn) to sit 1.5" above the subfloor. Then, I adjust my stairs to make up for that 1.5" as well. When I want the gypcrete to show I have most often used a solid polygon set to concrete. I will try drawing it through doorways, etc. And, will add to it as I can to keep it all one piece. If not, I will break it up where it makes sense.

 

Recently I've found that the door models show door frames underneath if lifted 1.5" off the subfloor. I have not checked into what the root cause is yet, but will be checking to see if the latest update happened to fix the problem.

[Richard Rubinski]

It is a bit of a pain. I've tried different things, and have yet to find something that works the way I want it to. A slab will sometimes jump around and may not show correctly if using SoftList. I set my doors to sit 1.5" off the subfloor. And, I set my finish floors (if drawn) to sit 1.5" above the subfloor. Then, I adjust my stairs to make up for that 1.5" as well. When I want the gypcrete to show I have most often used a solid polygon set to concrete. I will try drawing it through doorways, etc. And, will add to it as I can to keep it all one piece. If not, I will break it up where it makes sense.

 

Recently I've found that the door models show door frames underneath if lifted 1.5" off the subfloor. I have not checked into what the root cause is yet, but will be checking to see if the latest update happened to fix the problem.

Mark, could you use the Underlayment Formula? Copy it and check all of the flooring types, rename it Gypcrete and adjust the formula to calculate cubic ft or yrds. Just a thought.

 

Rick

Attached Files

•  Underlayment.JPG   105.94KB   1 downloads

[Mark Petri]

Rick,

 

I suppose that could work. It would probably be the most accurate of all options.

[Dennis Hilborn]

I've used lightweight concrete on second floors of apartments.  The bottom plate is always double to raise the wall up 1.5" otherwise the sheetrocker will throw hammers at you and charge extra when he has to cut off 1.5" off his sheetrock.

[Kevin Rabenaldt]

Could you not use 3d poly (solid) in each area needed?  You would need a special formula to capture the solid if you wanted to calculate a price.

[Mark Petri]

This is how I have it set on a current plan I am working on. The polygon menu shows the area and cubic yards.

Attached Files

•  Gypcrete 3D polygon Sample.png   526.18KB   0 downloads

[Dennis Asher]

Thanks for all the suggestions.  I am going to go with the 3d polygon method.  I will let you all know how it works out.  Thanks!