The main envelope material of my building is concrete. I design 30cm concrete walls with 1.5cm of plaster on each side. with the following composition.
HORMIGON = CONCRETE
ENLUCIDO = PLASTER
I also have a roof overhang on 3/4 sides of the building, only on the ones where I have curtain walls. Besides that I have a Skylight on the roof above the atrium for massive natural lighting on the common area.
LEVEL 1 LIGHTNING ANALYSIS
On Level 1, the main entrance corridor is alined with the atrium, this is the only main area with a yellow surface. The red zones are the mechanical room, restrooms, stairs, kitchen and the exhibition rooms because I don't want natural lighting there because of HVAC and audio visual features. The cafe/dining room is green, even though it has the entire facade with curtain walls.
LEVEL 2 LIGHTNING ANALYSIS
On Level 2 I have red zones in restrooms, 2/3 offices, GM bathroom and in 50% of the meeting rooms corridor. Which I think is Ok, maybe the only change could be windows for the offices. Im good with the blue zones for my building because In Ecuador the sun hits directly and I don't want to spend lots of money on Low E glass.
As you can see I have curtain walls on the Cafe and Dining, that includes the left corner and all the corridor on the second level, where I intend to put tables. On the roof I have a skylight and a green roof, with the following composition
EARTH = TIERRA
On the other facade I have windows only on the Meeting Rooms on Level 2 and on the Seminar Rooms in Level 1, the other half of the facade has no windows because that's the exhibition room area.
On windows I do specify triple low E glass, because I have windows mainly on the facade where I don't design any roof or window overhang, Because of the size of the windows I do want direct sunlight.
With the new roof overhang design I run a new Solar Analysis, because now I have more area for solar panels. I will need that energy for my big exhibition areas without natural lightning.
Then I run my analytical model to upload the model to Insight.
I started with a 96.4 kBtu/ft2/year.
I stay loyal to my design WWR, but orientate it 315 degrees, also I considered Low e glass for the south, east and north facade, the ones where I have curtain walls, even though I have the roof overhang.
The most important points are the plug load efficiency. Which I think is hard to achieve but it helps reducing the kBtu. I specify daylighting and occupancy controls, AHSRAE Package Thermal Heat Pump for HVAC and for PV 16% efficiency, 90% of the area and a 30 years payback.
Finally the operation days is 12/6 because I want to leave one day for integral cleaning.
With all this changes my project reaches 11.4 kBtu which is hist 2 points up the Architecture 2030. I could reach it but I have to delete all the currant walls of my project.