Exterior Roof Deck Problem

[JKEdmo]

Good afternoon,

 

I'm working on the as-builts of a house with an exterior roof deck above a screened porch.

 

Here's looking back at the screened porch with the deck above:

 

 

Here's view up at the roof deck:

 

 

 

Here's the approach I took:  I built my porch below and built the roof deck above to be a roof with zero slope.

 

That seemed to work great as the auto-gutters appeared on all sides.

 

 

 

 

So far so good, but as soon as I added railings to the roof deck perimeter, it "suppressed" the roof construction and turned it into a floor for lack of a better description.

 

 

 

 

Is there a way to keep this from happening?

 

Thanks again for the help,

 

Jim

 

P.S.  Zipped PLAN file attached.

 

 

 

 

 

 

AS-BUILTS.zip

Edited March 19, 2023 by JKEdmo
PLAN file added

[SNestor]

Don't use a roof plane. Just build another balcony room using railing walls. Use a molding polyline for the gutter. 

 

[JKEdmo]

6 minutes ago, SNestor said:

Don't use a roof plane. Just build another balcony room using railing walls. Use a molding polyline for the gutter. 

 

I'll give that a try tomorrow morning.  I was wondering if my strategy was the wrong one.

 

Thanks,

 

Jim

 

[SNestor]

Wall don't sit on top of roof planes...well, you can make it work but it's not worth the effort

[JKEdmo]

Steve,

 

Did you achieve the balcony cantilever by locating the railing walls outboard of the walls below?  I guess I thought exterior walls need to stack, but maybe not!

 

Jim

 

[SNestor]

Yes…I pulled the walls out 18 inches. Chief won’t put a ceiling on the underside of the cantilevered area. You can use a molding polyline to add a soffit if you desire.