Job details
Building setup
High-level form, fabric, and orientation. Most fields propagate downstream — except when they don't.
0°
azimuth from north
Drawing builder
Add rooms by selecting a type and drawing on the canvas. Add windows by clicking room walls. Ventilation paths animate but never quite arrive.
Defined rooms
No rooms yet — click and drag on the canvas to draw one.
Selected room — properties
Internal gains & occupancy
Per TM59 default profiles, with a few extras we keep meaning to remove from the template.
Ventilation strategy
Defines the assumed natural and mechanical air paths during occupied hours.
Project intelligence
Soft factors that affect deliverability. Affects nothing in the calc but very much affects the timeline.
3
times asked this week
Run dynamic simulation
Solver: EnergyPlus 9.6 (cached)
Results FAIL
Criterion A
FAIL
4.8 %
Hours over operative temperature limit during occupied hours, living areas.
Threshold ≤ 3.0% | TM52 Ta ≥ Tmax + 1K
Criterion B
FAIL
2.1 %
Hours above 26 °C in bedrooms between 22:00 and 07:00.
Threshold ≤ 1.0% (TM59 night-time)
Criterion C
PASS
2.7 K
Maximum operative temperature deviation, weighted across rooms.
Threshold ≤ 4 K (TM52 daily weighted)
Annual hours overheating — by room
Total: 47 hours · highest contributing room: Bedroom 2 (south)
Room overheating heatmap
Cells re-shade on every recalc. Don't read too much into the pattern.
Suggested mitigations
- Add MVHR with summer bypass
- Add external shading to south & west elevations
- Add trees (mature, by completion)
- Add a brise soleil
- Consider giving up
Last calculated: never