topic Re: Rooftop Gardens/Walkable Roof in Revit Architecture Forum

Rooftop Gardens/Walkable Roof

Anonymous — Thu, 13 Jul 2017 03:16:42 GMT

Hello all,

I might be asking a rookie question here:

Which building element would you use to model rooftop gardens/walkable rooftops?

It may seem logical to model them up as floor elements as you maybe have doors opening onto them, or stairs leading up to the platform.

But would they count towards the total floor area for the schedules?

Or it is better to use a roof element, but set a separate family type?

Open for discussion and comments.

Thanks!

Re: Rooftop Gardens/Walkable Roof

Chonghyuk.Lee — Thu, 13 Jul 2017 03:27:24 GMT

Hi @Anonymous,

Thank you for visiting Autodesk Forum.

If I understand correctly, you know which element will be good for rooftop gardens and walkable roof.

It will depend on your demand, if you want to calculate the area in schedule.

It's hard for me to suggest other than floor element unless you have specific requirement.

Please feel free to let me know if you have any further questions.

Thank you for participation in Forum again. Have a great day!

Re: Rooftop Gardens/Walkable Roof

Anonymous — Thu, 13 Jul 2017 03:45:28 GMT

Hi Chonghyuk,

Thank you for your reply.

Yes, because technically it is a roof, the top of the building.

But if it is open for walking on, or some kind of roof garden, must we change it to become a floor element?

What are your thoughts?

Re: Rooftop Gardens/Walkable Roof

ToanDN — Thu, 13 Jul 2017 03:50:11 GMT

You can use either. You can create a different floor type to filter it out of the regular floor schedule.

Re: Rooftop Gardens/Walkable Roof

Anonymous — Thu, 13 Jul 2017 03:53:27 GMT

Hi there,

Thanks for your suggestion!

I think filter is a good idea!

Thank you for your help!

Re: Rooftop Gardens/Walkable Roof

Chonghyuk.Lee — Thu, 13 Jul 2017 06:11:40 GMT

Hi @Anonymous,

Like @ToanDN said, you can filter it and I have tested whether we can calculate area for Roof element and it worked fine as expected.

You can have any of elements you prefer.

I will leave this question open to get more ideas from other Revit gurus.

Thank you for participation again.

Have a great day!

If my post answers your question, please click the "Accept as Solution" button. This helps everyone find answers more quickly!

Re: Rooftop Gardens/Walkable Roof

ToanDN — Thu, 13 Jul 2017 12:20:41 GMT

There are some fundamental differences between a floor and a roof in Revit so you may want to consider before making a decision:
- a floor can be a structural element; a roof cannot
- a roof can be curved (roof by extrusion or by face); a floor cannot (except model in place)
- when you change a floor assembly thickness, it keeps the top and adjusts the bottom; roof is the other way around

It's not uncommon to build a 'roof' consisting of both a structural floor and a roof on top of it.

Re: Rooftop Gardens/Walkable Roof

PijPiwo — Thu, 13 Jul 2017 13:16:53 GMT

@ToanDN wrote:
It's not uncommon to build a 'roof' consisting of both a structural floor and a roof on top of it.

That would be my approach, so roof based families like skylights, roof vents, fascia etc. can be added to the roof and having a structural floor below is a plus as well.

Re: Rooftop Gardens/Walkable Roof

Anonymous — Fri, 14 Jul 2017 02:07:41 GMT

Thank you ToanDN and PijPiwo for the helpful suggestions! Always good to hear suggestions from experienced users!