Stage 04
Fenestration
Build the 2026 opening schedule for windows and doors, assessed independently by storey and occupancy or tenancy.What you will learn
- Create traceable opening records.
- Use width, height and quantity to establish area.
- Understand independent area-weighted U-value and SHGC checks.
Prepare before you start
- Door and window schedule
- Storey, occupancy and orientation for every opening
- Width, height, quantity, whole-element U-value and SHGC
Step by step
Complete this stage
1
Add each opening type
Use a distinct name for each different size, orientation or performance specification.
2
Enter dimensions and quantity
Capture width and height directly; let the app calculate the repeated area.
3
Assign its calculation zone
Select the storey and occupancy or tenancy served by the opening. One occupancy cannot compensate for another.
4
Apply whole-element thermal data
Use values including frame effects, then review U-value across all vertical fenestration and SHGC separately for shaded, unshaded and southern groups.
Quality check
- Opening names match drawings or schedules.
- Every opening is assigned to the correct storey and occupancy.
- Rooflights are excluded from the vertical-fenestration calculation.
Use this guide with the current project documents, official standards available to your team and the review required for your professional role.