First floor ceiling and roof

RE: First floor ceiling and roof

Aakil Patel — Tue, 23 Mar 2021 08:42:57 GMT

Thankyou very much Shane.

RE: First floor ceiling and roof

Shane Regan — Mon, 22 Mar 2021 18:20:12 GMT

Hi Aakil,

Everything appears to be set up fine in that case.

Should you need to there are several ways of getting in touch:

You can log a Service Request here

or, phone us at the number relevant to your country here

or, contact us on this Building Performance forum.

Please note that extensive guidance on entering and setting up roofs can be found in the manuals, eg as below:

RE: First floor ceiling and roof

Aakil Patel — Mon, 22 Mar 2021 12:29:05 GMT

Hi Shane,

Thanks.

Under room data the height of the room shows as 2.7m as shown below:

But the individual wall and partition heights are not showing as 2.7 but are being extended to the roof. In this case is the room height actually 2.7, with a false ceiling?

If i was to go back to global changes and change the ff room heights back to 2.7 but model shows up like this again, and when i do the roof settings as before the wall heights change change.

Shane, is there a number i can ring to get through to you so that i can get a better understanding of the model data.

Thanks.

RE: First floor ceiling and roof

Shane Regan — Mon, 22 Mar 2021 12:11:09 GMT

Hello Aakil, that is just a visual issue, the room volumes will have been correctly adjusted for the new room height you entered. If you check the rooms you should find they are the correct height.

RE: First floor ceiling and roof

Aakil Patel — Mon, 22 Mar 2021 12:07:12 GMT

Hi Shane,

Thankyou for getting back to me.

These are the settings I set. I didn't tick extend walls to underside of roof and correct volumes as this just extend the walls right up to the roof.

It still hasn't managed to create a false ceiling under the roof as shown in the 3D model below.

If I was to select 'extend walls to underside of roof and correct volumes' it changes the model as such without a false ceiling:

What would you recommend I do.

RE: First floor ceiling and roof

Aakil Patel — Mon, 22 Mar 2021 11:41:01 GMT

Hi Shane i have done what you have recommended, a ceiling has been added above the GF, but there is no ceiling above the FF.

If i was to select set up exposed roof, it would raise each wall of the internal rooms to the roof rather than to the ceiling level at 2.7m high (disturbing the heat loss values). How would I resolve this issue of adding a ceiling above the first floor, creating a cold roof.

RE: First floor ceiling and roof

Shane Regan — Mon, 22 Mar 2021 11:40:31 GMT

Hi Aakil,

This will be for the intermediate internal floors/ceilings.

There is a similar option to do so when you set up exposed roofs, which will apply to the rooms below the roof:

RE: First floor ceiling and roof

Aakil Patel — Mon, 22 Mar 2021 10:27:08 GMT

Would doing this help solve the issue Shane?

RE: First floor ceiling and roof

Aakil Patel — Mon, 22 Mar 2021 10:26:09 GMT

So would this current setting include adding a false ceiling to the gf and ff. The reason why i want to add a ceiling to the FF is because when i create a roof and select 'set up exposed roofs' with the FF as the 'floor immediately below this roof', the ff room heights change which i dont want.

RE: First floor ceiling and roof

Shane Regan — Mon, 22 Mar 2021 10:13:34 GMT

Many thanks for clarifying. While we wouldn't always recommend manually deleting the data files within the project folder, hopefully your model should be ok. To add the ceiling to the G floor you would need to go to Roofs / Floors and go through Set Up Intermediate Floors and Ceilings, as below:

RE: First floor ceiling and roof

Aakil Patel — Mon, 22 Mar 2021 10:07:40 GMT

Hi Shane, i am using Hevacomp- design database

RE: First floor ceiling and roof

Aakil Patel — Mon, 22 Mar 2021 10:07:14 GMT

Hi Shane i am using Hevacomp

RE: First floor ceiling and roof

Shane Regan — Mon, 22 Mar 2021 10:03:49 GMT

Hi Aakil,

Good morning. Could you please confirm if you are using Hevacomp or OpenBuildings Energy Simulator?