Overheating & comfort
Part O simple method
Consider summer comfort alongside the layout, glazing and ventilation strategy.
What this service helps you do.
The simplified method checks a design against the applicable Part O guidance on limiting solar gains and removing excess heat. Ordellis reviews the location, glazing and ventilation information, then identifies where the proposed design needs further consideration.
What’s included.
- Review of whether the simplified method is suitable for the dwelling.
- Assessment of glazing, shading and the proposed ventilation openings.
- A report setting out the assessment inputs and results.
- Design feedback or a recommendation to consider dynamic thermal modelling.
What we need to get started.
- Site location, orientation and dwelling plans.
- Glazing dimensions, specifications and shading information.
- Window opening sizes and opening arrangements.
- Relevant noise, security and safety constraints on ventilation.
The suitability of the method and the use of ventilation openings must be checked for the actual project. If the simplified route is unsuitable, a TM59 assessment may be appropriate.
Your questions, answered.
When should overheating be reviewed?
Before window sizes, shading and ventilation arrangements are fixed. These design decisions can materially affect the assessment.
What if the simple method is not suitable?
Ordellis can discuss dynamic thermal modelling using the TM59 methodology and agree the necessary modelling scope.
Connected expertise
Services that work together.
Tell us what you’re building.
Share your drawings and project location for a clear scope and quotation.
