My model consists of two floors, 2.7m high for first floor and 2.7m for second floor. I added a pitch roof which messed the whole model up, so i deleted the roof data from the DDBROOF.NDX folder along with the ROOFPOLY.* and RLIGHTPOLY.* files. The model has become slightly better, but in 3D model view i can see straight down to the GF- so the GF has no ceiling. How do i add a ceiling to the GF. I also want to add a pitch roof with the middle edge elevated 2.25m, but i cant seem to get the datum height correct. Please can someone help me. im assuming the datum height is just 2.7+2.7=5.4m.
Would doing this help solve the issue Shane?
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:
Shane Regan | Principle Building Performance Support Engineer
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.
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.
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.